JP2015055570A - Material selection method and device for thermal spray film or build-up welding layer - Google Patents

Material selection method and device for thermal spray film or build-up welding layer Download PDF

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JP2015055570A
JP2015055570A JP2013189669A JP2013189669A JP2015055570A JP 2015055570 A JP2015055570 A JP 2015055570A JP 2013189669 A JP2013189669 A JP 2013189669A JP 2013189669 A JP2013189669 A JP 2013189669A JP 2015055570 A JP2015055570 A JP 2015055570A
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JP6016742B2 (en
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田中 康弘
Yasuhiro Tanaka
康弘 田中
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三菱重工業株式会社
Mitsubishi Heavy Ind Ltd
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Abstract

PROBLEM TO BE SOLVED: To produce a thermal spray film or a build-up welding layer, capable of exerting erosion/corrosion resistant properties according to required specifications before construction of the thermal spray film or the build-up welding layer.SOLUTION: A material selection method for a thermal spray film or a build-up welding layer includes: a main element selection process (S10) of selecting a main element influencing erosion/corrosion resistant properties of the thermal spray film or the like; a data collection process (S12) of measuring content of the main element, hardness, a film thickness, and a thickness reduction speed from the thermal spray film or the like which contains the selected main element, is constructed to the surface of a base material, and is placed under erosion and corrosion environment; a map creation process (S14) of plotting measurement data on a three-dimensional map in which the content of the main element, and the film thickness and the hardness of the thermal spray film or the like are respectively set to coordinate axes; a process (S18) of setting a required thickness reduction speed of the thermal spray film or the like; a process (S20) of calculating a requirement region satisfying the set required thickness reduction speed from the three-dimensional map; and a process (S22) of selecting the content of the main element of the thermal spray film or the like from the requirement region.

Description

本発明は、エロージョン及びコロージョンの環境下に置かれる部材に施工される溶射膜又は肉盛溶接層の主要元素を選定する場合に好適な材料選定方法及び装置に関する。   The present invention relates to a material selection method and apparatus suitable for selecting main elements of a sprayed film or a built-up weld layer applied to a member placed in an environment of erosion and corrosion.
陸用ボイラや石炭ガス化複合発電設備、あるいはごみ発電ボイラ等に使用されるボイラ管は、燃焼灰などによるエロージョン(機械的な浸食作用)や、燃焼ガスに含まれる硫化水素、硫酸塩や塩化物等によるコロージョン(電気化学的な腐食作用)を重畳して受ける環境下に置かれる。このような環境下で使用される部材には、耐摩耗性及び耐食性の両方の性質を兼ね備える必要があり、どちらか一方が欠けても摩耗や腐食による減肉が進行する。   Boiler tubes used for land-use boilers, coal gasification combined power generation facilities, or garbage power generation boilers, etc. are used for erosion (mechanical erosion) caused by combustion ash, hydrogen sulfide, sulfate and chloride contained in combustion gas. It is placed in an environment where it is subject to corrosion (electrochemical corrosive action) caused by things. A member used in such an environment needs to have both properties of wear resistance and corrosion resistance, and thinning due to wear or corrosion proceeds even if one of them is missing.
かかる環境下に置かれる部材の減肉対策として、部材の表面に溶射膜や肉盛溶接層を被覆する方法がある。しかし、耐摩耗性及び耐食性を念頭において材料を選定しても、実際のエロージョン・コロージョン環境下でどの程度の耐減肉効果があるのかを事前に確認することは容易にはない。   As a measure for reducing the thickness of a member placed in such an environment, there is a method of covering the surface of the member with a sprayed film or a build-up weld layer. However, even if materials are selected in consideration of wear resistance and corrosion resistance, it is not easy to confirm in advance how much resistance to metal thinning is present in an actual erosion / corrosion environment.
特許文献1には、実際に施工された溶射膜の膜質が健全であるか否かを現場で評価可能にした膜質評価方法が開示されている。この評価方法は、溶射膜の電気抵抗率と非破壊硬さと膜厚との相関関係から、溶射膜の所定の機能を満たすために必要とされる要求領域を設定する設定工程と、実際に施工された溶射膜の電気抵抗率、非破壊硬さ及び膜厚を計測する計測工程と、各計測値が要求領域内にあるとき、施工された溶射膜が健全であると判断する判断工程とからなるものである。   Patent Document 1 discloses a film quality evaluation method that enables on-site evaluation of whether or not the film quality of a sprayed film actually applied is sound. This evaluation method is based on the correlation between the electrical resistivity, nondestructive hardness, and film thickness of the sprayed film, and a setting process that sets the required area required to satisfy the prescribed function of the sprayed film. A measurement process for measuring the electrical resistivity, nondestructive hardness and film thickness of the sprayed film, and a judgment process for determining that the applied sprayed film is healthy when each measured value is within the required area. It will be.
特開2011−106922号公報JP 2011-106922 A
特許文献1に開示された膜質評価方法は、施工された後の溶射膜の膜質を評価する評価方法であり、溶射膜の施工前に、溶射膜が要求仕様通りの耐摩耗性や耐食性を有するかどうかを予測可能にするものではない。施工された溶射膜が要求された耐摩耗性や耐食性を満たさず、減肉速度が見込み値より大きいことが判明したとき、溶射膜の取替えや保守点検スケジュールを見直す必要が生じる。   The film quality evaluation method disclosed in Patent Document 1 is an evaluation method for evaluating the film quality of a sprayed film after being applied, and the sprayed film has wear resistance and corrosion resistance as required specifications before the sprayed film is applied. It doesn't make it predictable. When the applied sprayed film does not satisfy the required wear resistance and corrosion resistance, and it is found that the thinning rate is greater than the expected value, it is necessary to replace the sprayed film and review the maintenance inspection schedule.
本発明は、かかる従来技術の課題に鑑み、エロージョン及びコロージョン環境下に置かれる部材の表面に溶射膜や肉盛溶接を施工する場合に、要求仕様通りの耐エロージョン・コロージョン特性を確実に発揮できる溶射膜や肉盛溶接層を製造可能とすることを目的とする。   In view of the problems of the prior art, the present invention can reliably exhibit erosion / corrosion resistance characteristics as required when applying a sprayed film or overlay welding on the surface of a member placed in an erosion and corrosion environment. It aims at enabling manufacture of a sprayed film and a build-up weld layer.
前記目的を達成するため、本発明の溶射膜又は肉盛溶接層の材料選定方法は、以下の各工程を行うことで、溶射膜又は肉盛溶接層(以下「溶射膜等」と言う)に含まれる元素のうち溶射膜等の耐エロージョン・コロージョン特性を左右する主要元素及びその含有量を選定し、要求仕様通りの耐エロージョン・コロージョン特性を発揮できる溶射膜等を製造可能にしたものである。   In order to achieve the above object, the method for selecting a material for a sprayed film or a built-up weld layer according to the present invention performs the following steps to form a sprayed film or a built-up weld layer (hereinafter referred to as “sprayed film etc.”). Among the elements contained, the main elements that influence the erosion / corrosion characteristics of the sprayed film, etc., and their contents are selected, and it is possible to produce a sprayed film that can exhibit the erosion / corrosion resistant characteristics as required. .
まず、溶射膜等に含まれる元素のうち溶射膜等の耐エロージョン・コロージョン特性を左右する主要元素を選定する。次に、選定された主要元素を成分として含み、エロージョン及びコロージョン環境下に置かれた既存の溶射膜等、又は試験片として作成され、エロージョン及びコロージョン環境下に置かれた溶射膜等のサンプルから、該主要元素の含有量、硬さ、膜厚及び減肉速度を計測し、これら計測値のデータ収集を行う。   First, the main elements that influence the erosion / corrosion resistance properties of the sprayed film, etc. are selected from the elements contained in the sprayed film. Next, from an existing sprayed film that contains the selected main element as a component and is placed in an erosion and corrosion environment, or a sample that is created as a test piece and placed in an erosion and corrosion environment. Then, the content, hardness, film thickness and thinning rate of the main elements are measured, and data of these measured values are collected.
次に、収集した計測データから、主要元素の含有量、溶射膜等の膜厚及び硬さを夫々座標軸とした3次元マップを作成し、この3次元マップに計測データをプロットする。さらに溶射膜等の要求減肉速度を設定し、計測データがプロットされた3次元マップから、要求減肉速度を満たす要求領域を算出する。こうして算出された要求領域の中から、溶射膜等の主要元素の含有量を選定する。主要元素の含有量を選定した後、他の必要な元素及びその含有量を決め、溶射膜等の成分元素及びそれらの含有量を決定する。   Next, a three-dimensional map is created from the collected measurement data with the content of the main element, the film thickness and hardness of the sprayed film, etc. as the coordinate axes, and the measurement data is plotted on this three-dimensional map. Further, a required thinning rate of the sprayed film or the like is set, and a required region satisfying the required thinning rate is calculated from a three-dimensional map in which measurement data is plotted. The content of the main element such as the sprayed film is selected from the required area thus calculated. After selecting the contents of the main elements, other necessary elements and their contents are determined, and the component elements such as the sprayed film and their contents are determined.
溶射膜の硬さは溶射膜の緻密性と相関し、耐摩耗性を評価する指標となる。そのため、硬さが大きいほど優れた耐摩耗性(耐エロージョン特性)を有する。肉盛溶接層についても、同様に溶接層内に溶接欠陥などの無い健全なミクロ組織で硬さの大きいものほど優れた耐摩耗性(耐エロージョン特性)を有する。
廃棄物焚き循環流動床ボイラでは、燃料として用いられる高カロリーのゴミ固形化燃料(RDF)中にHClが多く含まれている。そのため、運転中にHClガスやHClガスから生じたKClやNaCl等が気相凝縮し、気孔内に腐食性ガスや溶融塩が侵入し、溶射膜を内部から、そして被溶射基材となる伝熱管金属などを腐食させてしまう。緻密性が低い溶射膜では気孔が多く存在するため、耐食性が低い溶射膜となる。
The hardness of the sprayed film correlates with the denseness of the sprayed film and serves as an index for evaluating wear resistance. Therefore, the higher the hardness, the better the wear resistance (erosion resistance). Similarly, the build-up weld layer has a more excellent wear resistance (erosion resistance) as the hardness of the sound microstructure without weld defects in the weld layer increases.
In a waste-fired circulating fluidized bed boiler, high-calorie waste solidified fuel (RDF) used as fuel contains a large amount of HCl. Therefore, HCl gas and KCl, NaCl, etc. generated from HCl gas during operation are vapor-phase condensed, corrosive gas and molten salt enter the pores, and the sprayed film is transmitted from the inside and becomes the substrate to be sprayed. Corrodes hot tube metal. Since the sprayed film with low density has many pores, it becomes a sprayed film with low corrosion resistance.
また、溶射膜等の膜厚を用途に応じて適切な膜厚とすることで、優れた耐エロージョン・コロージョン特性を得ることができる。溶射膜等の膜厚が一定以上であれば、硬さ計測の精度を高めることができる。また、溶射膜等の膜厚が厚ければ、溶射膜等の耐摩耗性及び耐食性は向上するが、膜厚が厚すぎると、割れや剥離などの問題が生じる。
従って、これらのパラメータを評価指標として選定し、これらのパラメータの相関関係から、要求減肉速度を満たす要求領域を選定することで、耐エロージョン・コロージョン特性を有する溶射膜等を製造できる。
Moreover, the outstanding erosion-corrosion characteristic can be acquired by making film thickness, such as a sprayed film, into an appropriate film thickness according to a use. If the film thickness of the sprayed film or the like is greater than a certain value, the accuracy of hardness measurement can be increased. Further, if the film thickness of the sprayed film or the like is thick, the wear resistance and corrosion resistance of the sprayed film or the like is improved, but if the film thickness is too thick, problems such as cracking and peeling occur.
Therefore, by selecting these parameters as evaluation indexes and selecting a required region satisfying the required thinning rate from the correlation between these parameters, a sprayed film having erosion / corrosion resistance can be manufactured.
溶射膜等の膜質は、施工の際の条件(溶射ガンと被溶射面との間の溶射距離や溶射角度など、あるいは肉盛溶接方法など)によっても左右される。これに対し、本発明方法においては、主要元素の種々の含有量に対して、エロージョン及びコロージョンの環境下に置かれた既存の溶射膜等、又は試験片として作成され同様の環境下に置かれた溶射膜等のサンプルを用い、これらから計測された溶射膜等の硬さ、膜厚及び減肉速度の相関関係から、溶射膜の要求減肉速度を満たす主要元素の含有量を選定しているので、本発明方法により製造された溶射膜等は、要求仕様通りの耐エロージョン・コロージョン特性を発揮できる。   The film quality of the sprayed film and the like depends on the conditions during construction (spraying distance and spraying angle between the spraying gun and the surface to be sprayed, the overlay welding method, etc.). In contrast, in the method of the present invention, an existing sprayed film or the like placed in an erosion or corrosion environment or a test piece is placed in a similar environment for various contents of the main elements. Using the sample of the sprayed film, etc., select the content of the main elements that satisfy the required thinning rate of the sprayed film from the correlation of the hardness, film thickness, and thinning rate of the sprayed film, etc. measured from these samples. Therefore, the sprayed coating produced by the method of the present invention can exhibit the erosion / corrosion resistance characteristics as required.
本発明方法の一実施態様として、前記3次元マップから、主要元素の異なる含有量毎に溶射膜等の硬さ及び膜厚を座標軸に取った複数の2次元マップを作成する。この2次元マップに溶射膜等の硬さ、膜厚及び減肉速度をプロットすると共に、2次元マップから溶射膜等の要求減肉速度を満たす要求仕様領域を算出するようにすることができる。
これによって、溶射膜等の要求減肉速度を満たす要求仕様領域を、2次元マップ上で明瞭に把握することができる。
As an embodiment of the method of the present invention, a plurality of two-dimensional maps are created from the three-dimensional map, with the hardness and film thickness of the sprayed film and the like as coordinate axes for different contents of the main elements. It is possible to plot the hardness, film thickness and thinning rate of the sprayed film on this two-dimensional map, and calculate the required specification region that satisfies the required thinning rate of the sprayed film and the like from the two-dimensional map.
This makes it possible to clearly grasp the required specification region that satisfies the required thinning rate, such as a sprayed film, on the two-dimensional map.
エロージョン及びコロージョン環境として、例えば、硫黄成分を含む環境がある。これは、石炭、石油、ごみ等に含まれる硫黄分が硫酸塩灰やHSガスとなって排ガス中に含まれるためである。これらの物質によって溶射膜等の摩耗や腐食が起る。
図8は、高温HS環境下による0.13mm/年の等腐食度曲線を示す(出典:A.S.Couper and J. W. Gorman:Mater.Prot.Perform., 10,No.1 31 (1971))。この図から、Cr含有量が高い合金ほど硫化腐食環境下で優れた耐食性を示すことがわかる。従って、硫黄成分を含む環境下ではCrを主要元素として選定することができる。
Examples of erosion and corrosion environments include environments containing sulfur components. This is because sulfur contained in coal, petroleum, waste, etc. is contained in the exhaust gas as sulfate ash or H 2 S gas. These materials cause wear and corrosion of the sprayed film.
8 shows an isocorrosion curve of 0.13 mm / year in a high temperature H 2 S environment (Source: AS Coupler and JW Gorman: Mater. Prot. Perform., 10, No. 1). 31 (1971)). From this figure, it can be seen that an alloy having a higher Cr content exhibits superior corrosion resistance in a sulfidation corrosion environment. Therefore, Cr can be selected as a main element in an environment containing a sulfur component.
また、エロージョン・コロージョン環境として、例えば、塩素成分を含む環境が考えられる。ごみの燃焼ガスにはプラスチック分の中の塩化ビニールの燃焼により生じたHClガスが存在する。また、ごみの中の無機物質や海塩粒子からもClが混入するため、燃焼灰が堆積したボイラ管の伝熱面には通常塩化物が存在している。これらの塩化物によって溶射膜の摩耗や腐食が起る。
図9は、オーステナイト系耐熱材料の高温腐食特性(400℃、20hr加熱、塩化物灰環境下、*は高Cr高Ni合金)を示す(住友金属 Vol.46 No.2 (1994))。図から、高Ni合金ほど耐食性が良好であることがわかる。
As an erosion / corrosion environment, for example, an environment containing a chlorine component is conceivable. The garbage combustion gas contains HCl gas generated by the combustion of vinyl chloride in the plastic content. Moreover, since Cl is also mixed from inorganic substances and sea salt particles in the garbage, chloride is usually present on the heat transfer surface of the boiler tube on which the combustion ash is deposited. These chlorides cause wear and corrosion of the sprayed film.
FIG. 9 shows the high temperature corrosion characteristics of austenitic heat resistant material (400 ° C., 20 hr heating, under chloride ash environment, * is a high Cr high Ni alloy) (Sumitomo Metals, Vol. 46 No. 2 (1994)). From the figure, it can be seen that the higher the Ni alloy, the better the corrosion resistance.
本発明者等は、塩素成分、例えば塩化物を含む環境下では、Ni及びMoが溶射膜等の耐エロージョン・コロージョン特性を左右する主要元素であることを見い出した。従って、塩素成分を含む環境下では、溶射膜等の要求減肉速度を満たす要求仕様領域の中から(Ni+Mo)含有量を選定するとよい。   The inventors of the present invention have found that Ni and Mo are main elements that affect the erosion / corrosion resistance characteristics of a sprayed film and the like in an environment containing a chlorine component such as chloride. Therefore, in an environment containing a chlorine component, the (Ni + Mo) content may be selected from a required specification region that satisfies a required thinning rate such as a sprayed film.
本発明方法の一実施態様として、計測データの収集時に、溶射膜の硬さに関する計測値として、非破壊硬さ試験で得られた計測値を採用し、かつ計測対象とする溶射膜の膜厚が少なくとも1,00〜5,000μm(5mm)を含むようにすることができる。
非破壊硬さとは非計測対象物である溶射膜を変形させずに計測した硬さを言う。本発明では膜厚が比較的薄い溶射膜を対象とするため、ビッカース硬さ試験を非破壊硬さ試験として位置付ける。非破壊硬さを計測する場合、少なからず母材の硬さの影響を受けるために、事前に母材を含んだ溶射膜等の硬さを把握し、硬さと減肉速度との相関関係の評価を進める必要がある。
As one embodiment of the method of the present invention, when measuring data is collected, the measured value obtained in the nondestructive hardness test is adopted as the measured value related to the hardness of the sprayed film, and the thickness of the sprayed film to be measured is measured. Can include at least 1,00 to 5,000 μm (5 mm).
Nondestructive hardness refers to the hardness measured without deforming the sprayed film, which is a non-measurement object. In the present invention, since the sprayed film is relatively thin, the Vickers hardness test is positioned as a nondestructive hardness test. When measuring non-destructive hardness, it is affected by the hardness of the base material.Therefore, grasp the hardness of the sprayed film that contains the base material in advance, and check the correlation between the hardness and the thinning speed. Evaluation needs to proceed.
前記本発明方法を直接実施するために用いられる本発明の溶射膜又は肉盛溶接層の材料選定装置は、エロージョン及びコロージョン環境下に置かれる部材の表面に施工される溶射膜等の主要元素の含有量を選定する材料選定装置であって、耐エロージョン・コロージョン特性を左右する主要元素を含み、前記部材の表面に施工され、エロージョン及びコロージョン環境下に置かれた溶射膜等から主要元素の含有量、硬さ、膜厚及び減肉速度を計測する計測器と、主要元素の含有量、溶射膜の膜厚及び硬さを夫々座標軸とする3次元マップを作成し、該3次元マップに前記計測器で計測された主要元素の含有量、溶射膜等の硬さ、膜厚及び減肉速度をプロットする3次元マップ作成手段と、溶射膜等の要求減肉速度を設定する設定手段と、該3次元マップから、溶射膜等の要求減肉速度を満たす要求領域を算出する算出手段と、要求領域の中から溶射膜等の主要元素の含有量を選定する含有量選定手段とを備えたものである。   The material selection device for the thermal spray film or overlay welding layer of the present invention used for directly carrying out the method of the present invention is the main element such as a thermal spray film applied on the surface of a member placed in an erosion and corrosion environment. A material selection device for selecting the content, including the main elements that affect the erosion / corrosion resistance characteristics, containing the main elements from the sprayed film, etc. that is applied to the surface of the member and placed in the erosion and corrosion environment. A measuring instrument for measuring the amount, hardness, film thickness and thinning rate, and a three-dimensional map with the content of main elements and the film thickness and hardness of the sprayed film as coordinate axes, respectively, Three-dimensional map creation means for plotting the content of main elements measured by the measuring instrument, hardness of the sprayed film, film thickness and thinning rate; setting means for setting the required thinning rate of the sprayed film; The three It is equipped with calculation means for calculating the required area that satisfies the required thinning rate of sprayed film, etc. from the original map, and content selection means for selecting the content of main elements such as sprayed film from the required area. is there.
前記構成により、本発明方法の実施が可能になる。即ち、エロージョン及びコロージョンの環境下に置かれた既存の溶射膜等、又は試験片として作成され、前記環境下に置かれた溶射膜等のサンプルから、前記計測器によって溶射膜等から主要元素の含有量、硬さ、膜厚及び減肉速度を計測し、予め計測データを収集する。そして、3次元マップ作成手段によって、これらの計測データがプロットされた3次元マップが作成される。
算出手段では、前記3次元マップと前記設定手段で設定された溶射膜等の要求減肉速度とから要求領域を算出する。算出された要求領域から主要元素の含有量を選定することにより、設定された要求減肉速度を満足する耐エロージョン・コロージョン特性を正確に再現できる溶射膜等を製造できる。
With the above configuration, the method of the present invention can be implemented. That is, an existing sprayed film or the like placed in an environment of erosion or corrosion, or a sample such as a sprayed film placed as a test piece and placed in the environment, from the sprayed film or the like by the measuring instrument. Content, hardness, film thickness and thinning rate are measured, and measurement data is collected in advance. Then, a three-dimensional map in which these measurement data are plotted is created by the three-dimensional map creating means.
The calculation means calculates the required area from the three-dimensional map and the required thinning rate of the sprayed film or the like set by the setting means. By selecting the content of the main element from the calculated required area, it is possible to manufacture a sprayed coating or the like that can accurately reproduce the erosion / corrosion characteristics satisfying the set required thinning rate.
本発明装置の一実施態様として、3次元マップから、主要元素の異なる含有量毎に溶射膜等の膜厚及び硬さを夫々座標軸に取った複数の2次元マップを作成すると共に、各2次元マップに溶射膜等の硬さ、膜厚及び減肉速度をプロットする2次元マップ作成手段をさらに備えるようにすることができる。そして、算出手段によって、2次元マップから溶射膜等の要求減肉速度を満たす要求領域を算出するようにする。
このように、主要元素の含有量毎に複数の2次元マップを作成することで、溶射膜等の要求減肉速度を満たす要求仕様領域を、マップ上で明瞭に把握できる。
As one embodiment of the apparatus of the present invention, a plurality of two-dimensional maps are created from the three-dimensional map, each of the two-dimensional maps taking the film thickness and hardness of the sprayed film and the like on the coordinate axes for each different content of the main element. Two-dimensional map creation means for plotting the hardness, film thickness, and thinning rate of the sprayed film on the map can be further provided. Then, the required area that satisfies the required thinning rate of the sprayed film or the like is calculated from the two-dimensional map by the calculating means.
In this way, by creating a plurality of two-dimensional maps for each main element content, a required specification region that satisfies a required thinning rate such as a sprayed film can be clearly identified on the map.
なお、本発明は、施工後の溶射膜等が要求仕様通りの性状を有するかどうかを評価する場合にも適用可能である。   In addition, this invention is applicable also when evaluating whether the sprayed film etc. after construction have the property as a required specification.
本発明によれば、エロージョン・コロージョン環境下に置かれた溶射膜等から計測した計測値で作成した3次元マップから、溶射膜等の主要元素の含有量を選定するので、試行錯誤することなく、所望の耐エロージョン・コロージョン特性を有する溶射膜等を正確に製造できる。   According to the present invention, since the content of main elements such as a sprayed film is selected from a three-dimensional map created from a measured value measured from a sprayed film placed in an erosion-corrosion environment, without trial and error. Thus, it is possible to accurately produce a sprayed film having desired erosion / corrosion resistance.
本発明の第1実施形態に係る作業工程のフロー図である。It is a flowchart of the work process which concerns on 1st Embodiment of this invention. 前記第1実施形態で用いられる材料選定装置のブロック線図である。It is a block diagram of the material selection apparatus used by the said 1st Embodiment. 前記材料選定装置でエロージョン・コロージョン試験結果をプロットした3次元マップである。It is the three-dimensional map which plotted the erosion corrosion test result with the said material selection apparatus. 前記3次元マップから作成された2次元マップである。It is a two-dimensional map created from the three-dimensional map. 前記3次元マップから作成された2次元マップである。It is a two-dimensional map created from the three-dimensional map. 前記3次元マップから作成された2次元マップである。It is a two-dimensional map created from the three-dimensional map. 前記3次元マップから作成された2次元マップである。It is a two-dimensional map created from the three-dimensional map. 高温HS環境下による等腐食度曲線を示す線図である。Is a diagram showing an equivalent corrosion curve due to the high temperature H 2 S environment. オーステナイト系耐熱材料の高温腐食特性を示す線図である。It is a diagram which shows the high temperature corrosion characteristic of an austenitic heat-resistant material.
以下、本発明を図に示した実施形態を用いて詳細に説明する。但し、この実施形態に記載されている構成部品の寸法、材質、形状、その相対配置などは特に特定的な記載がない限り、この発明の範囲をそれのみに限定する趣旨ではない。   Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.
(実施形態1)
次に、本発明の第1実施形態を図1〜図7により説明する。本実施形態は、HS環境下に置かれるボイラ管に施工される溶射膜等の例である。図1は本実施形態の作業工程を示している。図1において、まず、主要元素を選定する(S10)。本実施形態では、溶射膜等の耐エロージョン・コロージョン特性を左右する主要元素としてCrを選定する。次に、計測データ収集工程に移行する(S12)。
(Embodiment 1)
Next, a first embodiment of the present invention will be described with reference to FIGS. The present embodiment is an example of a sprayed film or the like applied to a boiler pipe placed in an H 2 S environment. FIG. 1 shows a work process of this embodiment. In FIG. 1, first, main elements are selected (S10). In the present embodiment, Cr is selected as a main element that affects the erosion / corrosion resistance characteristics of a sprayed coating or the like. Next, the process proceeds to the measurement data collection process (S12).
計測データ収集工程(S12)では、種々のCr含有量を有する溶射膜等の計測用サンプルを用意する。この計測用サンプルは、非破壊硬さ、膜厚及び減肉速度を実際に計測するために用いられる溶射膜等である。この計測用サンプルはHS環境下で実際に用いられた既存の溶射膜等であってもよく、あるいは試験片として新たに作成し、所定期間HS環境下に置かれた溶射膜等であってもよい。 In the measurement data collection step (S12), measurement samples such as a sprayed film having various Cr contents are prepared. The measurement sample is a sprayed film or the like used for actually measuring the nondestructive hardness, the film thickness, and the thinning rate. The sample for measurement may be an existing sprayed film actually used in an H 2 S environment, or a newly created spray specimen as a test piece and placed in an H 2 S environment for a predetermined period. It may be.
次に、Cr含有量、非破壊硬さ(ビッカース硬さHV)及び膜厚を夫々座標軸とする3次元マップを作成する。そして、この3次元マップに計測データ収集工程(S12)で収集した計測データをプロットする(S14)。そして、この3次元マップから、主要元素であるCrの異なる含有量毎に、溶射膜等の非破壊硬さ及び膜厚を座標軸に取った複数の2次元マップを作成する(S16)。次に、要求減肉速度を設定した後(S18)、複数の2次元マップから設定された要求減肉速度を満たす要求領域を算出する(S20)。   Next, a three-dimensional map is created with the Cr content, nondestructive hardness (Vickers hardness HV) and film thickness as coordinate axes. Then, the measurement data collected in the measurement data collection step (S12) is plotted on this three-dimensional map (S14). Then, from this three-dimensional map, a plurality of two-dimensional maps are created for each different content of Cr, which is the main element, with the non-destructive hardness and the film thickness of the sprayed film as the coordinate axes (S16). Next, after setting the required thinning speed (S18), a required area that satisfies the required thinning speed set from a plurality of two-dimensional maps is calculated (S20).
最後に、算出された要求領域の中から、溶射膜等の主要元素であるCrの含有量を選定する(S22)。その後、他の必要な元素及びその含有量を決め、溶射膜等の成分及びそれらの含有量を決定する。   Finally, the content of Cr, which is a main element such as a sprayed film, is selected from the calculated required region (S22). Thereafter, other necessary elements and their contents are determined, and components such as a sprayed film and their contents are determined.
次に、本実施形態で用いられる材料選定装置10の構成を図2に基づいて説明する。
材料選定装置10は、Cr含有量計測器12、非破壊硬さ計14、膜厚計16及び減肉度計18で構成されるデータ取得部19を有している。用意した計測用サンプルのCr含有量、非破壊硬さ(ビッカース硬さHV)、膜厚及び減肉速度をCr含有量計測器12、非破壊硬さ計14、膜厚計16及び減肉度計18を用いて計測する。Cr含有量計測器12として、例えば簡易蛍光X線装置などを用いて計測する。非破壊硬さ計14として、ビッカース硬さ計測器を用いて非破壊的に計測する。膜厚計16として、例えば、電磁膜厚計や超音波膜厚計等の膜厚計を用いて溶射膜の膜厚を計測する。減肉度計18として、例えば超音波肉厚計や膜厚計16と同様の計測器を用いる。
Next, the structure of the material selection apparatus 10 used in this embodiment will be described with reference to FIG.
The material selection device 10 includes a data acquisition unit 19 including a Cr content measuring instrument 12, a nondestructive hardness meter 14, a film thickness meter 16, and a thickness reduction meter 18. Cr content, nondestructive hardness (Vickers hardness HV), film thickness and thinning rate of the prepared measurement sample are measured by Cr content measuring instrument 12, nondestructive hardness meter 14, film thickness meter 16 and thinning degree. A total 18 is used for measurement. As Cr content measuring instrument 12, it measures using a simple fluorescent X-ray apparatus etc., for example. The nondestructive hardness meter 14 is measured nondestructively using a Vickers hardness meter. As the film thickness meter 16, for example, a film thickness meter such as an electromagnetic film thickness meter or an ultrasonic film thickness meter is used to measure the film thickness of the sprayed film. As the thickness reduction meter 18, for example, a measuring instrument similar to the ultrasonic thickness meter or the film thickness meter 16 is used.
これらの計測値を制御装置20に内蔵された記憶部22に一旦記憶させる。そして、記憶部22に記憶させた前記4種の計測値を3次元マップ作成部20に送り、3次元マップを作成する。3次元マップ作成部24では、減肉度計18で計測した減肉度を各計測用サンプルがHS環境下で置かれた期間で割算し、減肉速度を算出すると共に、図3に示す3次元マップを作成する。 These measured values are temporarily stored in the storage unit 22 built in the control device 20. Then, the four types of measurement values stored in the storage unit 22 are sent to the three-dimensional map creation unit 20 to create a three-dimensional map. The three-dimensional map creation unit 24 divides the thinning degree measured by the thinning degree meter 18 by the period in which each measurement sample is placed in the H 2 S environment to calculate the thinning speed, and FIG. 3D map is created.
図3において、3次元マップのx軸はCr含有量(w%)であり、y軸は非破壊硬さ(ビッカース硬さHV)であり、z軸は膜厚(μm)である。この3次元マップに、計測用サンプルから得られた計測値をプロットすると共に、演算した減肉速度(mm/年)をプロットする。次に、この3次元マップから、異なるCr含有量毎に、溶射膜の膜厚をx軸とし、非破壊硬さをy軸とした複数の2次元マップを作成する。   In FIG. 3, the x-axis of the three-dimensional map is the Cr content (w%), the y-axis is the nondestructive hardness (Vickers hardness HV), and the z-axis is the film thickness (μm). On this three-dimensional map, the measured value obtained from the measurement sample is plotted, and the calculated thinning rate (mm / year) is plotted. Next, from this three-dimensional map, for each different Cr content, a plurality of two-dimensional maps are created with the sprayed film thickness as the x-axis and the nondestructive hardness as the y-axis.
図4〜図7は、こうして作成した4個の2次元マップである。図4は、Cr含有量が10w%(A点)の場合の2次元マップであり、図5はCr含有量が22w%(B点)の場合の2次元マップであり、図6はCr含有量が30w%(C点)の場合の2次元マップであり、図7はCr含有量が40w%(D点)の場合の2次元マップである。これらの図において、斜線部は要求減肉速度(0.2mm/年以下)を満たした減肉速度の領域を示している。また、図5中、E点は、減肉速度が0.2mm/年以下の領域にあり、本実施形態の要求仕様を満たしている。一方、F点は、減肉速度が0.3mm/年以上であり、本実施形態の要求仕様を満たしていない。   4 to 7 are four two-dimensional maps created in this way. 4 is a two-dimensional map when the Cr content is 10 w% (point A), FIG. 5 is a two-dimensional map when the Cr content is 22 w% (point B), and FIG. 6 is the Cr content. FIG. 7 is a two-dimensional map when the amount is 30 w% (point C), and FIG. 7 is a two-dimensional map when the Cr content is 40 w% (point D). In these drawings, the shaded area indicates the region of the thinning rate that satisfies the required thinning rate (0.2 mm / year or less). Further, in FIG. 5, point E is in a region where the thinning rate is 0.2 mm / year or less, and satisfies the required specifications of this embodiment. On the other hand, point F has a thickness reduction rate of 0.3 mm / year or more and does not satisfy the required specifications of this embodiment.
本実施形態では、計測用サンプルの膜厚(z軸)は100〜5,000μm(5mm)及びその周辺の膜厚領域で計測値がプロットされている。非破壊硬さを計測する場合、少なからず母材の硬さの影響を受けるため、事前に母材を含んだ溶射膜または肉盛溶接層の硬さを把握し、硬さと減肉速度の相関関係の評価を進める。
なお、非破壊硬さを計測する場合、計測用サンプルの膜厚を一定以上厚くすることで、即ち、1,000〜3,000μm及びその周辺領域を含むようにすることで、母材の硬さの影響を受けることなく、高い精度で非破壊硬さ(ビッカース硬さ)を計測できる。
In the present embodiment, the measured values are plotted in the film thickness region (z axis) of the measurement sample in the range of 100 to 5,000 μm (5 mm) and its peripheral film thickness. When measuring non-destructive hardness, it is affected by the hardness of the base metal, and therefore, the hardness of the sprayed coating or overlay weld layer containing the base material must be ascertained beforehand, and the correlation between the hardness and the thickness reduction rate. Advance the evaluation of relationships.
When measuring the non-destructive hardness, the thickness of the measurement sample is increased to a certain level or more, that is, by including 1,000 to 3,000 μm and its peripheral region, the hardness of the base material is increased. Non-destructive hardness (Vickers hardness) can be measured with high accuracy without being affected by the thickness.
3次元マップ作成部24で作成された3次元マップ、及び2次元マップ作成部26で作成された2次元マップは、夫々記憶部22に記憶される。また、要求領域算出部28には2次元マップが入力されると共に、要求減肉速度設定部28で設定された要求減肉速度が入力される。要求領域算出部30では、2次元マップ及び要求減肉速度からこの要求減肉速度を満たす要求領域を算出する。Cr含有量選定部32では、要求領域算出部30で算出された要求領域の中から、この要求領域を満たすCr含有量を選定する。
こうして主要元素であるCr含有量が選定された後で、他の含有元素の含有量が選定され、溶射膜等を構成する成分が決定される。
The three-dimensional map created by the three-dimensional map creation unit 24 and the two-dimensional map created by the two-dimensional map creation unit 26 are stored in the storage unit 22, respectively. In addition, a two-dimensional map is input to the request region calculation unit 28 and a request thinning rate set by the request thinning rate setting unit 28 is input. The required area calculation unit 30 calculates a required area that satisfies the required thinning speed from the two-dimensional map and the required thinning speed. The Cr content selection unit 32 selects a Cr content satisfying the required area from the required areas calculated by the required area calculation unit 30.
After the Cr content, which is the main element, is selected in this way, the content of other contained elements is selected, and the components constituting the sprayed film and the like are determined.
本実施形態によれば、溶射膜等の主要元素となるCrの含有量を、HS環境下に置かれた溶射膜の計測用サンプルを用い、Cr含有量、非破壊硬さ及び膜厚を座標軸とした3次元マップに計測した減肉速度をプロットすることで、要求減肉速度を把握できる。そのため、所望の耐エロージョン・コロージョン特性を有する溶射膜等を正確に製造できる。
さらに、3次元マップから、異なるCr含有量毎に複数の2次元マップを作成することで、溶射膜等の要求減肉速度をマップ上に明瞭に表すことができるので、Cr含有量の選定を正確に行うことができる。
According to this embodiment, the Cr content, the non-destructive hardness, and the film thickness are measured using a sample for measuring a sprayed film placed in an H 2 S environment with respect to the content of Cr as a main element such as a sprayed film. By plotting the measured thinning speed on a three-dimensional map with the coordinate axis as the coordinate axis, the required thinning speed can be grasped. Therefore, a sprayed film having desired erosion / corrosion resistance can be accurately manufactured.
Furthermore, by creating a plurality of two-dimensional maps for each different Cr content from the three-dimensional map, the required thinning rate of the sprayed film etc. can be clearly shown on the map, so the selection of the Cr content Can be done accurately.
非破壊硬さを計測する場合、少なからず母材の硬さの影響を受けるため、事前に母材を含んだ溶射膜または肉盛溶接層の硬さを計測し、当該硬さと減肉速度の相関関係の評価を把握しておくことで、正確に減肉速度評価を実施することができる。   When measuring non-destructive hardness, it is affected by the hardness of the base metal.Therefore, measure the hardness of the sprayed coating or overlay weld layer containing the base material in advance, By grasping the evaluation of the correlation, it is possible to accurately evaluate the thinning rate.
(実施形態2)
次に、本発明の第2実施形態を説明する。本実施形態は、ごみ発電ボイラのように、HClガスなどの塩化物が存在する環境下に置かれたボイラ管に施工される溶射膜等の材料選定例である。この例では、主要元素としてNi及びMoを選定する。その後の工程は、図2の材料選定装置10を用いて、図1に示された第1実施形態と同様の工程を行う。
(Embodiment 2)
Next, a second embodiment of the present invention will be described. This embodiment is an example of selecting a material such as a sprayed film to be applied to a boiler tube placed in an environment where chloride such as HCl gas exists, such as a garbage power generation boiler. In this example, Ni and Mo are selected as main elements. Subsequent processes are the same as those in the first embodiment shown in FIG. 1 using the material selection apparatus 10 in FIG.
即ち、計測データ収集工程では、種々の(Ni+Mo)含有量を有する溶射膜等の計測用サンプルを用意する(S12)。この計測用サンプルは、非破壊硬さ、膜厚及び減肉速度を実際に計測するために用いられる溶射膜等であり、塩化物環境下で実際に用いられた既存の溶射膜等であってもよく、あるいは試験片として新たに作成し、所定期間塩化物環境下に置かれた溶射膜等であってもよい。   That is, in the measurement data collection step, measurement samples such as a sprayed film having various (Ni + Mo) contents are prepared (S12). This sample for measurement is a sprayed film that is used to actually measure nondestructive hardness, film thickness, and thinning speed, and is an existing sprayed film that is actually used in a chloride environment. Alternatively, it may be a sprayed coating newly prepared as a test piece and placed in a chloride environment for a predetermined period.
次に、(Ni+Mo)含有量、非破壊硬さ(ビッカース硬さHV)及び膜厚を夫々座標軸とする3次元マップを作成する。そして、この3次元マップに計測データ収集工程(S12)で収集した計測データをプロットする(S14)。
さらに、この3次元マップから、異なる(Ni+Mo)含有量毎に、溶射膜等の非破壊硬さ及び膜厚を座標軸に取った複数の2次元マップを作成する(S16)。
次に、要求減肉速度を設定した後(S18)、複数の2次元マップから設定された要求減肉速度を満たす要求領域を算出する(S20)。
Next, a three-dimensional map is created with the (Ni + Mo) content, nondestructive hardness (Vickers hardness HV), and film thickness as coordinate axes. Then, the measurement data collected in the measurement data collection step (S12) is plotted on this three-dimensional map (S14).
Further, from this three-dimensional map, a plurality of two-dimensional maps are created for each different (Ni + Mo) content, with the non-destructive hardness such as a sprayed film and the film thickness taken as coordinate axes (S16).
Next, after setting the required thinning speed (S18), a required area that satisfies the required thinning speed set from a plurality of two-dimensional maps is calculated (S20).
最後に、算出された要求領域の中から、溶射膜等の主要元素であるCrの含有量を選定する(S22)。その後、他の必要な元素及びその含有量を決め、溶射膜等の成分及びそれらの含有量を決定する。
本実施形態においても、塩化物環境下で所望の耐エロージョン・コロージョン特性を有する溶射膜等を正確に製造できる。さらに、3次元マップから、異なる(Ni+Mo)含有量毎に複数の2次元マップを作成することで、溶射膜等の要求減肉速度をマップ上に明瞭に表すことができるので、(Ni+Mo)含有量の選定を正確に行うことができる。
Finally, the content of Cr, which is a main element such as a sprayed film, is selected from the calculated required region (S22). Thereafter, other necessary elements and their contents are determined, and components such as a sprayed film and their contents are determined.
Also in this embodiment, it is possible to accurately manufacture a sprayed film having desired erosion / corrosion resistance characteristics in a chloride environment. Furthermore, by creating a plurality of two-dimensional maps for each different (Ni + Mo) content from the three-dimensional map, the required thinning rate of the sprayed film, etc. can be clearly represented on the map, so (Ni + Mo) content The quantity can be selected accurately.
本発明によれば、例えばボイラ管のように、エロージョン及びコロージョンの環境下に置かれる部材の表面に溶射膜等を施工する場合に、要求仕様通りの耐エロージョン・コロージョン特性を確実に発揮できる溶射膜等を製造することができる。   According to the present invention, for example, when a sprayed film is applied to the surface of a member placed in an erosion and corrosion environment such as a boiler tube, the thermal spraying can surely exhibit the erosion and corrosion resistance characteristics as required. Membranes and the like can be manufactured.
10 材料選定装置
12 Cr含有量計測器
14 非破壊硬さ計
16 膜厚計
18 減肉度計
19 データ取得部
20 制御装置
22 記憶部
24 3次元マップ作成部
26 2次元マップ作成部
28 要求減肉速度設定部
30 要求領域算出部
32 Cr含有量選定部
DESCRIPTION OF SYMBOLS 10 Material selection apparatus 12 Cr content measuring device 14 Nondestructive hardness meter 16 Film thickness meter 18 Thinning degree meter 19 Data acquisition part 20 Control apparatus 22 Memory | storage part 24 3D map creation part 26 2D map creation part 28 Demand reduction Meat speed setting section 30 Required area calculation section 32 Cr content selection section

Claims (7)

  1. エロージョン及びコロージョン環境下に置かれる部材の表面に施工される溶射膜又は肉盛溶接層の主要元素の含有量を選定する溶射膜又は肉盛溶接層の材料選定方法であって、
    溶射膜又は肉盛溶接層に含まれる元素のうち該溶射膜又は該肉盛溶接層の耐エロージョン・コロージョン特性を左右する主要元素を選定する主要元素選定工程と、
    選定された主要元素を含み、前記部材の表面に施工され、エロージョン及びコロージョン環境下に置かれた溶射膜又は肉盛溶接層から、前記主要元素の含有量、硬さ、膜厚及び減肉速度を計測し、これらの計測データを予め収集するデータ収集工程と、
    前記主要元素の含有量、前記溶射膜又は前記肉盛溶接層の膜厚及び硬さを夫々座標軸とした3次元マップに前記計測データをプロットする3次元マップ作成工程と、
    前記溶射膜又は前記肉盛溶接層の要求減肉速度を設定する要求減肉速度設定工程と、
    前記3次元マップから、前記溶射膜又は前記肉盛溶接層の要求減肉速度を満たす要求領域を算出する算出工程と、
    前記要求領域の中から前記溶射膜又は前記肉盛溶接層の主要元素の含有量を選定する含有量選定工程とを含むことを特徴とする溶射膜又は肉盛溶接層の材料選定方法。
    A method for selecting a material for a sprayed film or an overlay weld layer, which selects a content of a main element of a sprayed film or an overlay weld layer applied to the surface of a member placed in an erosion and corrosion environment,
    A main element selecting step for selecting a main element that affects the erosion / corrosion characteristics of the sprayed film or the overlay welding layer among the elements contained in the spray coating or the overlay welding layer;
    The content, hardness, film thickness, and thickness reduction rate of the main element from the sprayed film or the overlay welding layer that is applied to the surface of the member and contains the selected main element and is placed in an erosion and corrosion environment. And a data collection process for collecting these measurement data in advance,
    A three-dimensional map creation step of plotting the measurement data on a three-dimensional map with the content of the main element, the sprayed film or the thickness and hardness of the overlay weld layer as coordinate axes,
    A required thinning rate setting step for setting a required thinning rate of the sprayed film or the overlay welding layer,
    From the three-dimensional map, a calculation step for calculating a required region that satisfies a required thinning rate of the sprayed film or the overlay welding layer;
    A material selection method for selecting a content of a main element of the sprayed film or the overlay welding layer from the required region.
  2. 前記3次元マップから、前記主要元素の異なる含有量毎に前記溶射膜又は前記肉盛溶接層の硬さ及び膜厚を夫々座標軸とした複数の2次元マップを作成し、該2次元マップに前記溶射膜又は前記肉盛溶接層の硬さ、膜厚及び減肉速度をプロットする2次元マップ作成工程をさらに含み、
    前記算出工程は、前記2次元マップから前記溶射膜又は前記肉盛溶接層の要求減肉速度を満たす要求領域を算出するものであることを特徴とする請求項1に記載の溶射膜又は肉盛溶接層の材料選定方法。
    From the three-dimensional map, a plurality of two-dimensional maps are created, each of which has a coordinate axis that is the hardness and thickness of the sprayed film or the overlay weld layer for each different content of the main element, and the two-dimensional map includes the two-dimensional map. Further comprising a two-dimensional map creation step for plotting the hardness, film thickness and thinning rate of the sprayed film or the overlay weld layer,
    The said calculation process calculates the request | requirement area | region which satisfy | fills the request | requirement thinning speed of the said thermal spray film or the said overlay welding layer from the said two-dimensional map, The thermal spray film or overlay of Claim 1 characterized by the above-mentioned. Material selection method for the weld layer.
  3. 前記溶射膜又は前記肉盛溶接層は硫黄成分を含むエロージョン及びコロージョン環境下で用いられ、前記溶射膜又は前記肉盛溶接層の主要元素はCrであることを特徴とする請求項1又は2に記載の溶射膜又は肉盛溶接層の材料選定方法。   The thermal sprayed film or the overlay welding layer is used in an erosion and corrosion environment containing a sulfur component, and the main element of the thermal spray film or the overlay welding layer is Cr. The method for selecting a material for the thermal sprayed film or the overlay welding layer as described.
  4. 前記溶射膜又は前記肉盛溶接層は塩素成分を含むエロージョン及びコロージョン環境下で用いられ、前記溶射膜又は前記肉盛溶接層の主要元素はNi及びMoであり、
    前記含有量選定工程は、(Ni+Mo)含有量を選定するものであることを特徴とする請求項1又は2に記載の溶射膜又は肉盛溶接層の材料選定方法。
    The sprayed film or the overlay welding layer is used in an erosion and corrosion environment containing a chlorine component, and the main elements of the spray coating or the overlay welding layer are Ni and Mo,
    The material selection method according to claim 1 or 2, wherein the content selection step selects (Ni + Mo) content.
  5. 前記データ収集工程において、前記溶射膜又は前記肉盛溶接層の硬さに関する計測値は非破壊硬さ試験で得られた計測値であり、かつ計測対象とする溶射膜又は肉盛溶接層の膜厚が少なくとも100〜5,000μmを含むことを特徴とする請求項1に記載の溶射膜又は肉盛溶接層の材料選定方法。   In the data collection step, the measured value related to the hardness of the sprayed film or the overlay welding layer is a measurement value obtained by a nondestructive hardness test, and the sprayed film or the overlay welding layer film to be measured The method for selecting a material for a sprayed film or a build-up weld layer according to claim 1, wherein the thickness includes at least 100 to 5,000 μm.
  6. エロージョン及びコロージョン環境下に置かれる部材の表面に施工される溶射膜や肉盛溶接層の主要元素の含有量を選定する溶射膜又は肉盛溶接層の材料選定装置であって、
    耐エロージョン・コロージョン特性を左右する主要元素を含み、前記部材の表面に施工され、エロージョン及びコロージョン環境下に置かれた溶射膜又は肉盛溶接層から前記主要元素の含有量、硬さ、膜厚及び減肉速度を計測する計測器と、
    前記主要元素の含有量、前記溶射膜又は前記肉盛溶接層の膜厚及び硬さを夫々座標軸とする3次元マップを作成し、該3次元マップに前記計測器で計測された前記主要元素の含有量、前記溶射膜又は前記肉盛溶接層の硬さ、膜厚及び減肉速度をプロットする3次元マップ作成手段と、
    前記溶射膜又は前記肉盛溶接層の要求減肉速度を設定する要求減肉速度設定手段と、
    前記3次元マップから、前記溶射膜の要求減肉速度を満たす要求領域を算出する算出手段と、
    前記要求領域の中から前記溶射膜又は前記肉盛溶接層の主要元素の含有量を選定する含有量選定手段とを備えていることを特徴とする溶射膜又は肉盛溶接層の材料選定装置。
    A material selection device for a sprayed film or a built-up weld layer that selects the content of the main elements of the sprayed film or the built-up weld layer applied to the surface of a member placed in an erosion and corrosion environment,
    Containing main elements that affect erosion / corrosion resistance, the content, hardness, and film thickness of the main elements from a sprayed coating or overlay weld layer that is applied to the surface of the member and placed in an erosion and corrosion environment And a measuring instrument for measuring the rate of thinning,
    A three-dimensional map is created with the content of the main element, the thickness of the sprayed coating or the thickness and hardness of the build-up weld layer as the coordinate axes, and the main element measured by the measuring instrument on the three-dimensional map. A three-dimensional map creating means for plotting the content, the hardness of the sprayed film or the build-up weld layer, the film thickness, and the thinning rate;
    A required thinning rate setting means for setting a required thinning rate of the sprayed film or the build-up weld layer;
    From the three-dimensional map, a calculation means for calculating a required area that satisfies the required thinning rate of the sprayed coating;
    A material selection device for sprayed film or overlay welding layer, comprising: content selection means for selecting a content of main elements of the sprayed film or overlay welding layer from the required region.
  7. 前記3次元マップから、前記主要元素の含有量毎に前記溶射膜又は前記肉盛溶接層の膜厚及び硬さを夫々座標軸に取った複数の2次元マップを作成すると共に、前記複数の2次元マップに前記溶射膜又は前記肉盛溶接層の硬さ、膜厚及び減肉速度をプロットする2次元マップ作成手段をさらに備え、
    前記算出手段は、前記2次元マップから前記溶射膜又は前記肉盛溶接層の要求減肉速度を満たす要求領域を算出するものであることを特徴とする請求項6に記載の溶射膜又は肉盛溶接層の材料選定装置。
    From the three-dimensional map, for each content of the main element, a plurality of two-dimensional maps are created by taking the film thickness and hardness of the sprayed coating or the overlay welding layer as coordinate axes, respectively, and the plurality of two-dimensional maps Further comprising two-dimensional map creation means for plotting the hardness, film thickness and thickness reduction rate of the sprayed film or the overlay weld layer on the map,
    The sprayed film or overlay according to claim 6, wherein the calculation means calculates a required region satisfying a required thickness reduction rate of the sprayed film or the overlay welding layer from the two-dimensional map. Welding layer material selection device.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681120A (en) * 1991-09-24 1994-03-22 Babcock Hitachi Kk Production of wear resistant heat exchanger tube
JPH09176798A (en) * 1995-12-27 1997-07-08 Honda Motor Co Ltd Method for deciding component of welding material for hardening cladding by welding
JP2007254894A (en) * 2007-03-28 2007-10-04 Nippon Steel & Sumikin Stainless Steel Corp Chromium-containing steel for vessel material and welding method therefor, and vessel material
JP2008093732A (en) * 2006-09-12 2008-04-24 Fujikoo:Kk Build-up welding method and build-up welded portion formed by the method
JP2010142843A (en) * 2008-12-18 2010-07-01 Japan Atomic Energy Agency Welding material consisting of austenitic stainless steel, and method for preventive maintenance of stress corrosion cracking and intergranular corrosion using the same
US20110120977A1 (en) * 2009-11-25 2011-05-26 Lai George Y Alloy, Overlay, and Methods Thereof
JP2011106922A (en) * 2009-11-16 2011-06-02 Mitsubishi Heavy Ind Ltd Method for evaluating film quality of spray film
JP2013154384A (en) * 2012-01-31 2013-08-15 Toyo Kohan Co Ltd Method for manufacturing build-up welding member

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681120A (en) * 1991-09-24 1994-03-22 Babcock Hitachi Kk Production of wear resistant heat exchanger tube
JPH09176798A (en) * 1995-12-27 1997-07-08 Honda Motor Co Ltd Method for deciding component of welding material for hardening cladding by welding
JP2008093732A (en) * 2006-09-12 2008-04-24 Fujikoo:Kk Build-up welding method and build-up welded portion formed by the method
JP2007254894A (en) * 2007-03-28 2007-10-04 Nippon Steel & Sumikin Stainless Steel Corp Chromium-containing steel for vessel material and welding method therefor, and vessel material
JP2010142843A (en) * 2008-12-18 2010-07-01 Japan Atomic Energy Agency Welding material consisting of austenitic stainless steel, and method for preventive maintenance of stress corrosion cracking and intergranular corrosion using the same
JP2011106922A (en) * 2009-11-16 2011-06-02 Mitsubishi Heavy Ind Ltd Method for evaluating film quality of spray film
US20110120977A1 (en) * 2009-11-25 2011-05-26 Lai George Y Alloy, Overlay, and Methods Thereof
JP2013154384A (en) * 2012-01-31 2013-08-15 Toyo Kohan Co Ltd Method for manufacturing build-up welding member

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JPN6016033789; 柳田 省三: '830 圧力設備(配管)のエロージョン/コロージョンの損傷事例と腐食速度の解析' 日本機械学会材料力学部門講演会講演論文集 , 2000, Page.653-654 *
JPN7016002575; 正橋直哉: 'ものづくり基礎講座 金属の魅力をみなおそう第五回 ステンレス' ものづくり基礎講座(第31回技術セミナー) , 2012 *

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