JP2005281861A - METHOD FOR FORMING Al-DIFFUSED COATING LAYER, AND HEAT RESISTANT MEMBER HAVING Al-DIFFUSED COATING LAYER - Google Patents

METHOD FOR FORMING Al-DIFFUSED COATING LAYER, AND HEAT RESISTANT MEMBER HAVING Al-DIFFUSED COATING LAYER Download PDF

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JP2005281861A
JP2005281861A JP2005055946A JP2005055946A JP2005281861A JP 2005281861 A JP2005281861 A JP 2005281861A JP 2005055946 A JP2005055946 A JP 2005055946A JP 2005055946 A JP2005055946 A JP 2005055946A JP 2005281861 A JP2005281861 A JP 2005281861A
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coating layer
powder
forming
diffusion coating
base material
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JP4986402B2 (en
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Taichi Nagashima
太一 長嶋
Michio Saito
道雄 斉藤
Shinichi Kawasaki
真一 川崎
Mitsuaki Yamada
光昭 山田
Shinichiro Okada
慎一郎 岡田
Hiroyuki Okazaki
博行 岡崎
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Osaka Gas Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for forming a thin and uniform Al-diffused coating layer on the surface of a Ni base material, and to provide a heat resistant member obtained by the method. <P>SOLUTION: The method for forming the Al-diffused coating layer comprises burying the Ni base material in a packing agent containing 4 to 10 wt.% Al powder, and heating it to a temperature between 530 and 620°C from 460°C at a heating rate of 1 to 20°C/hour; or alternatively comprises burying the Ni base material in the packing agent containing 4 to 10 wt.% Al powder, and heating it in a temperature range between 450 and 550°C for 15 to 90 hours. The heat resistant member has the Al-diffused coating layer with a thickness of 1 nm to 1 mm uniformly formed on the surface of the Ni base material. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、Ｎｉ基材にＡｌ拡散コーティング層を形成する方法及びＡｌ拡散コーティング層を有する耐熱部材に関する。   The present invention relates to a method for forming an Al diffusion coating layer on a Ni substrate and a heat resistant member having the Al diffusion coating layer.

Ｎｉめっき被膜やＮｉ材料からなる基材に対し、その耐酸化性・耐食性を高めるために、クロムメッキなどを施すことがあるが、環境問題の面からクロムを利用することが難しくなってきた。   In order to improve the oxidation resistance and corrosion resistance of a Ni plating film or a base material made of a Ni material, chromium plating or the like may be applied, but it has become difficult to use chromium from the viewpoint of environmental problems.

一方、金属基材の表面にＡｌ拡散コーティング層を形成して、耐酸化性・耐食性を高める表面処理方法として、Ａｌパック法が開発されている（特許文献１及び特許文献２）。Ａｌパック法とは、金属基材をパック剤（通常、Ａｌ粉末、アルミナ粉末及びハロゲン化活力剤からなる）に埋め込み、不活性ガス中で高温処理して、金属基材表面にＡｌ拡散コーティング層を形成する方法である。   On the other hand, an Al pack method has been developed as a surface treatment method for improving oxidation resistance and corrosion resistance by forming an Al diffusion coating layer on the surface of a metal substrate (Patent Document 1 and Patent Document 2). In the Al pack method, a metal base material is embedded in a pack agent (usually made of Al powder, alumina powder and a halogenated activator), treated at a high temperature in an inert gas, and an Al diffusion coating layer is formed on the metal base surface. It is a method of forming.

しかしながら、従来のＡｌパック処理は、金属基材を埋め込むパック剤に含まれる活性種のＡｌ粉末量が２０〜３０重量％程度と多いので、非常に反応速度が速い。従って、基材の厚さが数十ｍｍ以上であれば問題ないが、厚さが数十ｍｍ以下、特に数ｍｍ以下の微細基材や薄膜基材の場合には、基材に含まれるＡｌ含有率が高くなることにより脆くなるため、適用することができなかった。
特開昭５６−８１６６８号公報 特開昭６２−１７１６５号公報 However, the conventional Al pack treatment has a very high reaction rate because the amount of active species Al powder contained in the pack agent for embedding the metal substrate is as large as about 20 to 30 wt%. Therefore, there is no problem if the thickness of the substrate is several tens mm or more, but in the case of a fine substrate or a thin film substrate having a thickness of several tens mm or less, particularly several mm or less, Al contained in the substrate. Since it became brittle when the content rate increased, it could not be applied.
JP 56-81668 A JP-A-62-17165

本発明の課題は、Ｎｉ基材の表面に薄くて均一なＡｌ拡散コーティング層を形成する方法及び該方法によって得られる耐熱部材を提供することにある。   An object of the present invention is to provide a method for forming a thin and uniform Al diffusion coating layer on the surface of a Ni substrate and a heat-resistant member obtained by the method.

本発明者らは、鋭意検討した結果、Ａｌパック処理における、パック剤中のＡｌ粉末含有量及び処理温度が互いに影響し合って、反応速度に大きく寄与することを見出し、本発明を完成するに至った。   As a result of intensive studies, the present inventors have found that the Al powder content in the pack agent and the treatment temperature in the Al pack treatment influence each other and greatly contribute to the reaction rate, and complete the present invention. It came.

すなわち、本発明は、下記に示すとおりのＡｌ拡散コーティング層の形成方法及びＡｌ拡散コーティング層を有する耐熱部材を提供するものである。
項１． Ｎｉ基材を、４〜１０重量％のＡｌ粉末を含有するパック剤中に埋め込み、４６０℃から、１〜２０℃／時間の昇温速度で、５３０〜６２０℃の範囲まで昇温することにより加熱処理することを特徴とするＡｌ拡散コーティング層の形成方法。
項２． Ｎｉ基材を、４〜１０重量％のＡｌ粉末を含有するパック剤中に埋め込み、４５０〜５５０℃の範囲で１５〜９０時間保持することにより加熱処理することを特徴とするＡｌ拡散コーティング層の形成方法。
項３． Ｎｉ基材が多孔体状であることを特徴とする項１または２に記載のＡｌ拡散コーティング層の形成方法。
項４． 項１〜３のいずれかに記載の方法によって得られる、Ｎｉ基材の表面に１ｎｍ〜１ｍｍの厚さで均一にＡｌ拡散コーティング層が形成されていることを特徴とする耐熱部材。 That is, the present invention provides a method for forming an Al diffusion coating layer and a heat resistant member having the Al diffusion coating layer as described below.
Item 1. By embedding a Ni base material in a pack containing 4 to 10% by weight of Al powder, the temperature is increased from 460 ° C. to a range of 530 to 620 ° C. at a temperature increase rate of 1 to 20 ° C./hour. A method of forming an Al diffusion coating layer, characterized by heat treatment.
Item 2. An Al diffusion coating layer, characterized in that a Ni base material is embedded in a pack containing 4 to 10% by weight of Al powder and heat-treated by holding at 450 to 550 ° C. for 15 to 90 hours. Forming method.
Item 3. Item 3. The method for forming an Al diffusion coating layer according to Item 1 or 2, wherein the Ni substrate is porous.
Item 4. Item 4. A heat-resistant member obtained by the method according to any one of Items 1 to 3, wherein an Al diffusion coating layer is uniformly formed with a thickness of 1 nm to 1 mm on the surface of a Ni substrate.

以下、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail.

本発明のＡｌ拡散コーティング層の形成方法は、Ｎｉ基材をＡｌパック剤中に埋め込み、加熱処理することにより行われる。   The Al diffusion coating layer forming method of the present invention is performed by embedding a Ni base material in an Al pack agent and heat-treating it.

本発明に用いるＮｉ基材の形状としては、多孔体状、繊維状、中空形状などが挙げられ、特に限定されないが、金属骨格の太さが１００〜５００μｍの三次元網状構造多孔体や、直径が１ｎｍ〜５００μｍで長さが１０ｎｍ〜１ｍの繊維などのような微細な形状の場合には、本発明の方法が特に効果的である。また、Ｎｉ基材は、ＦｅやＣｒなどの元素を含んでいてもよい。   Examples of the shape of the Ni base material used in the present invention include a porous body shape, a fiber shape, a hollow shape, and the like, and are not particularly limited, but a three-dimensional network structure porous body having a metal skeleton thickness of 100 to 500 μm, Is a fine shape such as a fiber having a length of 1 nm to 500 μm and a length of 10 nm to 1 m, the method of the present invention is particularly effective. In addition, the Ni base material may contain elements such as Fe and Cr.

本発明に用いるパック剤は、Ａｌ粉末、不活性耐火材料（例えば、アルミナ）の粉末、及びハロゲン化活力剤（例えば、ＮＨ4Ｃｌ、ＮＨ4Ｉ、ＮＨ4Ｆ、ＮａＣｌ、ＮａＦなど）の粉末からなる。パック剤中のＡｌ粉末の含有量は、４〜１０重量％であり、５〜７重量％であるのが好ましい。パック剤中のＡｌ粉末量が多すぎると、Ａｌパック処理におけるＡｌの拡散速度が速すぎてＡｌ拡散が広がり、処理後のＮｉ基材が脆くなる。逆に、Ａｌ粉末量が少なすぎると、Ａｌの拡散にばらつきを生じ、均一なＡｌ拡散コーティング層が形成されない。 The pack agent used in the present invention is a powder of Al powder, a powder of inert refractory material (for example, alumina), and a powder of halogenated activator (for example, NH 4 Cl, NH 4 I, NH 4 F, NaCl, NaF, etc.) Consists of. The content of the Al powder in the pack agent is 4 to 10% by weight, and preferably 5 to 7% by weight. If the amount of Al powder in the pack agent is too large, the diffusion rate of Al in the Al pack treatment is too fast and Al diffusion spreads, and the Ni substrate after treatment becomes brittle. On the other hand, if the amount of Al powder is too small, variation in Al diffusion occurs, and a uniform Al diffusion coating layer is not formed.

加熱処理は、Ｎ2、Ｈ2、Ａｒ及びこれらの混合ガスなどの非酸化雰囲気中で行う。 The heat treatment is performed in a non-oxidizing atmosphere such as N 2 , H 2 , Ar, and a mixed gas thereof.

加熱処理の際には、任意の昇温速度で室温から４６０℃まで昇温した後、１〜２０℃／時間の昇温速度で、５３０〜６２０℃の範囲まで昇温する。目的物の品質と作業性のバランスを考慮すると、４６０℃からの昇温は、５〜１０℃／時間の昇温速度で行うのが好ましい。   In the heat treatment, the temperature is raised from room temperature to 460 ° C. at an arbitrary rate of temperature rise, and then raised to a range of 530 to 620 ° C. at a rate of 1 to 20 ° C./hour. Considering the balance between the quality of the object and workability, it is preferable to raise the temperature from 460 ° C. at a rate of 5 to 10 ° C./hour.

また、上記方法以外に、４５０〜５５０℃の範囲で１５〜９０時間保持することにより加熱処理することもできる。この場合、温度が低すぎたり時間が短すぎると反応が不十分である。一方、温度が高すぎると脆化が促進され、時間が長すぎると脆化の促進だけでなく生産に支障をきたす。４５０〜４９０℃の範囲で２０〜３０時間保持することが好ましい。   In addition to the above method, heat treatment can be performed by holding at 450 to 550 ° C. for 15 to 90 hours. In this case, if the temperature is too low or the time is too short, the reaction is insufficient. On the other hand, if the temperature is too high, embrittlement is promoted, and if the time is too long, not only the embrittlement is promoted but also production is hindered. It is preferable to hold in the range of 450 to 490 ° C. for 20 to 30 hours.

以上のようにして、Ａｌパック処理における、パック剤中のＡｌ粉末含有量及び処理温度を特定することにより、Ａｌパック処理の反応速度を好適に制御することができる。そして、Ｎｉ基材の表面に１ｎｍ〜１ｍｍの厚さで均一にＡｌ拡散コーティング層が形成されるので、耐熱性、耐酸化性、耐食性に優れた耐熱部材を得ることができる。   As described above, the reaction rate of the Al pack treatment can be suitably controlled by specifying the Al powder content in the pack agent and the treatment temperature in the Al pack treatment. And since an Al diffusion coating layer is uniformly formed in the thickness of 1 nm-1 mm on the surface of Ni base material, the heat-resistant member excellent in heat resistance, oxidation resistance, and corrosion resistance can be obtained.

本発明のＡｌ拡散コーティング層の形成方法は、比較的低温で、且つ活性のあるＡｌ粉末の使用を少量に抑えた状態で実施されるため、Ｎｉ基材の脆化を抑制し、微細基材や薄膜基材にも均一に表面処理を施すことが可能である。   The method for forming an Al diffusion coating layer of the present invention is performed at a relatively low temperature and in a state where the use of active Al powder is suppressed to a small amount. It is also possible to uniformly treat the surface of a thin film substrate.

本発明の耐熱部材は、Ｎｉ基材の表面に１ｎｍ〜１ｍｍの厚さで均一にＡｌ拡散コーティング層が形成されているので、耐熱性、耐酸化性、耐食性、耐衝撃性、強度（硬度）、耐摩耗性、耐傷付き性、耐熱衝撃性、耐変色性等に優れている。また、Ａｌ成分が表層に存在しているため、更に表面をＡｌ由来の化合物（例えば、アルミナ）等で被覆する場合に、親和性を高め、密着性を良好にする効果もある。   Since the Al diffusion coating layer is uniformly formed on the surface of the Ni base material with a thickness of 1 nm to 1 mm, the heat resistant member of the present invention has heat resistance, oxidation resistance, corrosion resistance, impact resistance, and strength (hardness). Excellent wear resistance, scratch resistance, thermal shock resistance, discoloration resistance, etc. In addition, since the Al component is present in the surface layer, when the surface is further coated with an Al-derived compound (for example, alumina) or the like, there is an effect of increasing the affinity and improving the adhesion.

以下に実施例及び比較例を示し、本発明をより具体的に説明する。但し、本発明は実施例に限定されるものではない。   Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. However, the present invention is not limited to the examples.

実施例１
１５０×１５０×３００ｍｍの蓋付るつぼの中で、７５×７５×１１ｍｍの三次元網状構造Ｎｉ多孔体（大阪ガスケミカル(株)製「グリスフィルター」、金属骨格の太さ４００μｍ）２個を、アルミナ粉末８７．０重量％、Ａｌ粉末５．０重量％及びＮＨ4Ｃｌ粉末８．０重量％からなるＡｌパック剤中に埋め込み、窒素希釈の水素雰囲気下で、電気炉にて４８０℃まで４時間かけて昇温し、その後、７℃／時間の昇温速度で６２０℃まで２０時間かけて昇温した（Ａｌパック処理）。ＥＰＭＡ（電子プローブマイクロ分析）により測定したＡｌ拡散コーティング層の厚さは９０μｍであった。 Example 1
In a crucible with a lid of 150 × 150 × 300 mm, two 75 × 75 × 11 mm three-dimensional network structure Ni porous body (“Gris filter” manufactured by Osaka Gas Chemical Co., Ltd., 400 μm thick metal skeleton) It was embedded in an Al pack agent composed of 87.0% by weight of alumina powder, 5.0% by weight of Al powder, and 8.0% by weight of NH 4 Cl powder, and up to 480 ° C. in an electric furnace under a hydrogen atmosphere diluted with nitrogen. The temperature was raised over time, and then the temperature was raised to 620 ° C. over 20 hours at a rate of 7 ° C./hour (Al pack treatment). The thickness of the Al diffusion coating layer measured by EPMA (electron probe microanalysis) was 90 μm.

実施例２
１５０×１５０×３００ｍｍの蓋付るつぼの中で、７５×７５×１１ｍｍの三次元網状構造Ｎｉ多孔体（大阪ガスケミカル(株)製「グリスフィルター」、金属骨格の太さ４００μｍ）２個を、アルミナ粉末８７．０重量％、Ａｌ粉末５．０重量％及びＮＨ4Ｃｌ粉末８．０重量％からなるＡｌパック剤中に埋め込み、Ａｒ雰囲気下で、電気炉にて４５０℃で２０時間保持した（Ａｌパック処理）。ＥＰＭＡにより測定したＡｌ拡散コーティング層の厚さは２μｍであった。 Example 2
In a crucible with a lid of 150 × 150 × 300 mm, two 75 × 75 × 11 mm three-dimensional network structure Ni porous body (“Gris filter” manufactured by Osaka Gas Chemical Co., Ltd., 400 μm thick metal skeleton) It was embedded in an Al pack agent consisting of 87.0% by weight of alumina powder, 5.0% by weight of Al powder, and 8.0% by weight of NH 4 Cl powder, and kept in an electric furnace at 450 ° C. for 20 hours in an Ar atmosphere. (Al pack treatment). The thickness of the Al diffusion coating layer measured by EPMA was 2 μm.

比較例１
Ａｌパック剤の組成を、アルミナ粉末７２．０重量％、Ａｌ粉末２０．０重量％及びＮＨ4Ｃｌ粉末８．０重量％に変えた以外は実施例１と同様にしてＡｌパック処理を施した。骨格の全体にＡｌが拡散し、Ａｌ拡散コーティング層の厚さの測定ができなかった。 Comparative Example 1
Al pack treatment was performed in the same manner as in Example 1 except that the composition of the Al pack agent was changed to 72.0 wt% alumina powder, 20.0 wt% Al powder, and 8.0 wt% NH 4 Cl powder. . Al diffused throughout the skeleton, and the thickness of the Al diffusion coating layer could not be measured.

比較例２
４８０℃からの昇温速度を次のように変えた以外は実施例１と同様にしてＡｌパック処理を施した。すなわち、窒素希釈の水素雰囲気下で、電気炉にて４８０℃まで４時間かけて昇温し、その後、７０℃／時間の昇温速度で６２０℃まで２時間かけて昇温した。ＥＰＭＡにより測定したＡｌ拡散コーティング層の厚さは、４０〜１５０μｍの範囲でばらつきがあった。 Comparative Example 2
Al pack treatment was performed in the same manner as in Example 1 except that the rate of temperature increase from 480 ° C was changed as follows. That is, in a hydrogen atmosphere diluted with nitrogen, the temperature was increased to 480 ° C. over 4 hours in an electric furnace, and then heated to 620 ° C. over 2 hours at a temperature increase rate of 70 ° C./hour. The thickness of the Al diffusion coating layer measured by EPMA varied in the range of 40 to 150 μm.

比較例３
処理温度を次のように変えた以外は実施例１と同様にしてＡｌパック処理を施した。すなわち、窒素希釈の水素雰囲気下で、電気炉にて４８０℃まで４時間かけて昇温し、その後、７℃／時間の昇温速度で５００℃まで３時間かけて昇温した。ＥＰＭＡにより測定したＡｌ拡散コーティング層の厚さは５μｍであった。 Comparative Example 3
Al pack treatment was performed in the same manner as in Example 1 except that the treatment temperature was changed as follows. That is, in a hydrogen atmosphere diluted with nitrogen, the temperature was raised to 480 ° C. over 4 hours in an electric furnace, and then the temperature was raised to 500 ° C. over 3 hours at a rate of 7 ° C./hour. The thickness of the Al diffusion coating layer measured by EPMA was 5 μm.

実施例１、２及び比較例１〜３で得られたサンプルについて、以下の外観検査、脆性評価及び耐酸化性評価を行った。
外観検査：著しい色むらの有無
脆性評価：２０ｋｇ重／ｃｍの荷重をかけたときの破壊の有無
耐酸化性評価：空気雰囲気下で７００℃にて５０時間焼成したときの重量変化。増加量が少ない方が耐酸化性に優れる。 The samples obtained in Examples 1 and 2 and Comparative Examples 1 to 3 were subjected to the following appearance inspection, brittleness evaluation and oxidation resistance evaluation.
Appearance inspection: Presence / absence of significant color unevenness Evaluation of brittleness: Presence / absence of destruction when a load of 20 kg weight / cm is applied. The smaller the increase, the better the oxidation resistance.

その結果を表１に示す。   The results are shown in Table 1.

Figure 2005281861
Figure 2005281861

表１から明らかなように、実施例１及び２で得られたサンプルは、外観、脆性、耐酸化性の全ての特性において優れていた。
As is clear from Table 1, the samples obtained in Examples 1 and 2 were excellent in all the characteristics of appearance, brittleness and oxidation resistance.

Claims (4)

Ｎｉ基材を、４〜１０重量％のＡｌ粉末を含有するパック剤中に埋め込み、４６０℃から、１〜２０℃／時間の昇温速度で、５３０〜６２０℃の範囲まで昇温することにより加熱処理することを特徴とするＡｌ拡散コーティング層の形成方法。   By embedding a Ni base material in a pack containing 4 to 10% by weight of Al powder, the temperature is increased from 460 ° C. to a range of 530 to 620 ° C. at a temperature increase rate of 1 to 20 ° C./hour. A method for forming an Al diffusion coating layer, characterized by heat treatment. Ｎｉ基材を、４〜１０重量％のＡｌ粉末を含有するパック剤中に埋め込み、４５０〜５５０℃の範囲で１５〜９０時間保持することにより加熱処理することを特徴とするＡｌ拡散コーティング層の形成方法。   An Al diffusion coating layer, characterized in that a Ni base material is embedded in a pack containing 4 to 10% by weight of Al powder and heat-treated by holding at 450 to 550 ° C. for 15 to 90 hours. Forming method. Ｎｉ基材が多孔体状であることを特徴とする請求項１または２に記載のＡｌ拡散コーティング層の形成方法。   The method for forming an Al diffusion coating layer according to claim 1 or 2, wherein the Ni substrate is in the form of a porous body. 請求項１〜３のいずれかに記載の方法によって得られる、Ｎｉ基材の表面に１ｎｍ〜１ｍｍの厚さで均一にＡｌ拡散コーティング層が形成されていることを特徴とする耐熱部材。
A heat-resistant member obtained by the method according to any one of claims 1 to 3, wherein an Al diffusion coating layer is uniformly formed with a thickness of 1 nm to 1 mm on the surface of a Ni substrate.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011517472A (en) * 2008-03-14 2011-06-09 スネクマ Method for forming protective coatings containing aluminum and zirconium on metal parts
JP2016160490A (en) * 2015-03-02 2016-09-05 国立大学法人 大分大学 Method for surface-treating metal base material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983757A (en) * 1982-11-01 1984-05-15 タ−ビン・コンポ−ネンツ・コ−ポレイシヨン Formation of protective diffusion layer
JPS6217168A (en) * 1985-07-13 1987-01-26 Mazda Motor Corp Sliding contact member having self-lubricity
JPH04235271A (en) * 1990-06-06 1992-08-24 Daido Steel Co Ltd High temperature corrosion resistant member and its manufacture
JPH0813129A (en) * 1994-06-28 1996-01-16 Sumitomo Electric Ind Ltd High corrosion resistant metal porous body and its production
JPH09260030A (en) * 1996-03-21 1997-10-03 Japan Metals & Chem Co Ltd Porous metal of ni-cr-al
JPH1055811A (en) * 1996-05-31 1998-02-24 Samsung Heavy Ind Co Ltd Corrosion resistance treatment method for separator of fused carbonate fuel cell

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983757A (en) * 1982-11-01 1984-05-15 タ−ビン・コンポ−ネンツ・コ−ポレイシヨン Formation of protective diffusion layer
JPS6217168A (en) * 1985-07-13 1987-01-26 Mazda Motor Corp Sliding contact member having self-lubricity
JPH04235271A (en) * 1990-06-06 1992-08-24 Daido Steel Co Ltd High temperature corrosion resistant member and its manufacture
JPH0813129A (en) * 1994-06-28 1996-01-16 Sumitomo Electric Ind Ltd High corrosion resistant metal porous body and its production
JPH09260030A (en) * 1996-03-21 1997-10-03 Japan Metals & Chem Co Ltd Porous metal of ni-cr-al
JPH1055811A (en) * 1996-05-31 1998-02-24 Samsung Heavy Ind Co Ltd Corrosion resistance treatment method for separator of fused carbonate fuel cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011517472A (en) * 2008-03-14 2011-06-09 スネクマ Method for forming protective coatings containing aluminum and zirconium on metal parts
JP2016160490A (en) * 2015-03-02 2016-09-05 国立大学法人 大分大学 Method for surface-treating metal base material

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