JP2001295023A - High melting point metallic material having surface hardened layer and its producing method - Google Patents
High melting point metallic material having surface hardened layer and its producing methodInfo
- Publication number
- JP2001295023A JP2001295023A JP2000104437A JP2000104437A JP2001295023A JP 2001295023 A JP2001295023 A JP 2001295023A JP 2000104437 A JP2000104437 A JP 2000104437A JP 2000104437 A JP2000104437 A JP 2000104437A JP 2001295023 A JP2001295023 A JP 2001295023A
- Authority
- JP
- Japan
- Prior art keywords
- hardened layer
- metal material
- refractory metal
- hardened
- molybdenum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、モリブデン等の高
融点金属において、その表面に硬化層を有することによ
って、高温での耐摩耗性を有する材料として使用する表
面硬化層を有する高融点金属材料とその製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refractory metal material such as molybdenum which has a hardened layer on its surface and has a hardened surface layer used as a material having wear resistance at high temperatures. And its manufacturing method.
【０００２】[0002]
【従来の技術】従来、Ｖａ，ＶＩａ族に位置するニオ
ブ、タンタル、クロム、モリブデン、タングステンは、
高融点金属の代表とされ、その中でもモリブデンは、高
温で使用される加熱炉の発熱体、熱反射板、焼成用の坩
堝、トレー、敷き板など耐熱構造材料部材として使用さ
れている。しかし，モリブデン材を構造材料等の摺動部
品に使用した揚合、その耐摩耗性は劣ることが知られて
いる。2. Description of the Related Art Conventionally, niobium, tantalum, chromium, molybdenum and tungsten located in the Va and VIa groups are:
Molybdenum is a representative of high melting point metals. Among them, molybdenum is used as a heat-resistant structural material member such as a heating element of a heating furnace used at a high temperature, a heat reflection plate, a crucible for firing, a tray, and a laying plate. However, it is known that when molybdenum material is used for sliding parts such as structural materials, its wear resistance is inferior.
【０００３】上記のような欠点を解消するために種々の
硬化層膜を，モリブデン材の表面に生成，あるいは張り
合わせることが試みられている。[0003] In order to solve the above-mentioned drawbacks, it has been attempted to form or bond various hardened layer films on the surface of a molybdenum material.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、硬化層
膜を形成するために、プラズマ溶射法、ＣＶＤ法などに
よってモリブデン材の表面に硬化層性のセラミックス材
料の薄膜を被覆しても、生成された被覆薄膜は比較的粗
密であったり、ポア（ｐｏｒｅ）があったり、被膜と母
材料との密着強度が無く、耐摩耗性を改善するには至っ
ていない。However, even if a molybdenum material surface is coated with a thin film of a hardened ceramic material by a plasma spraying method, a CVD method, or the like, in order to form a hardened layer film, it is not formed. The coating thin film is relatively coarse and dense, has pores, has no adhesion strength between the coating and the base material, and has not been improved in abrasion resistance.
【０００５】そこで、本発明の技術的課題は、モリブデ
ン又はモリブデン合金に耐摩耗性を有する表面硬化層を
備えた高融点金属材料及びその製造方法を提供すること
にある。Accordingly, it is an object of the present invention to provide a high melting point metal material provided with a hardened surface layer having abrasion resistance on molybdenum or a molybdenum alloy, and a method for producing the same.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、硬化層被
膜を有するモリブデン材等について鋭意研究をした。そ
の結果、表面に窒素と炭素を含有する硬化層を有するモ
リブデン又はモリブデン合金材の開発に成功し、また、
その表面硬化層と母材金属との界面が楔状に結合されて
いることを見出だし、本発明をなすにいたったものであ
る。Means for Solving the Problems The present inventors have made intensive studies on molybdenum materials having a hardened layer coating. As a result, succeeded in the development of molybdenum or molybdenum alloy material having a hardened layer containing nitrogen and carbon on the surface,
It has been found that the interface between the surface hardened layer and the base metal is bonded in a wedge shape, and the present invention has been accomplished.
【０００７】即ち、本発明によれば、モリブデン又はモ
リブデン合金からなる母材金属の表面に窒素と炭素とを
含有した表面硬化層を有することを特徴とする表面硬化
層を有する高融点金属材料が得られる。That is, according to the present invention, there is provided a high melting point metal material having a surface hardened layer characterized by having a surface hardened layer containing nitrogen and carbon on the surface of a base metal made of molybdenum or a molybdenum alloy. can get.
【０００８】また、本発明によれば、前記表面硬化層を
有する高融点金属材料において、前記表面硬化層は、最
大硬度Ｈ０が前記母材金属の硬度Ｈ１に対して，Ｈ０／
Ｈ１≧５なる関係を有することを特徴とする表面硬化層
を有する高融点金属材料が得られる。Further, according to the present invention, in the refractory metal material having the surface hardened layer, the surface hardened layer has a maximum hardness H0 of H0 / hardness of the base metal H1.
A refractory metal material having a surface hardened layer characterized by the relationship of H1 ≧ 5 is obtained.
【０００９】また、本発明によれば、前記いずれかの表
面硬化層を有する高融点金属材料において，前記表面硬
化層と前記母材金属との界面が楔状に結合されているこ
とを特徴とする表面硬化層を有する高融点金属材料が得
られる。Further, according to the present invention, in the refractory metal material having any one of the surface hardened layers, an interface between the surface hardened layer and the base metal is connected in a wedge shape. A refractory metal material having a surface hardened layer is obtained.
【００１０】また、本発明によれば、前記表面硬化層を
有する高融点金属材料を製造する方法であって、前記母
材金属の表面に炭素供給源を塗布し、窒素雰囲気中で加
熱及び加圧処理して前記表面硬化層を形成することを特
徴とする表面硬化層を有する高融点金属材料の製造方法
が得られる。Further, according to the present invention, there is provided a method for producing a refractory metal material having the surface hardened layer, comprising applying a carbon supply source to the surface of the base metal, heating and heating in a nitrogen atmosphere. A method for producing a refractory metal material having a surface hardened layer characterized by forming the surface hardened layer by pressure treatment.
【００１１】また、本発明によれば、前記表面硬化層を
有する高融点金属材料の製造方法において、前記加熱処
理は、１１００〜１４００℃の温度範囲で行われること
を特徴とする表面硬化層を有する高融点金属材料の製造
方法が得られる。According to the present invention, in the method for producing a refractory metal material having a hardened surface layer, the heat treatment is performed in a temperature range of 1100 ° C. to 1400 ° C. Thus, a method for producing a refractory metal material having the same is obtained.
【００１２】更に、本発明によれば、前記表面硬化層を
有する高融点金属材料の製造方法において、前記加圧処
理は、窒素圧１ＭＰａ以上で行われ、前記加熱及び加圧
処理時間は、１０分以上であることを特徴とする表面硬
化層を有する高融点金属材料の製造方法が得られる。Further, according to the present invention, in the method for producing a refractory metal material having a surface hardened layer, the pressurizing treatment is performed at a nitrogen pressure of 1 MPa or more, and the heating and pressurizing treatment time is 10 minutes. And a method for producing a refractory metal material having a surface-hardened layer, characterized in that the temperature is at least one minute.
【００１３】また、本発明において、硬化層膜と母材金
属との界面の結合状態は、楔状である。尚、この結合状
態を平らなままでは、母材金属と硬化層性膜との結合状
態が弱い。しかし、本発明においては、楔状であるため
に、より結合を強固とすることができる。In the present invention, the bonding state of the interface between the hardened layer film and the base metal is wedge-shaped. If the bonding state is flat, the bonding state between the base metal and the cured layer film is weak. However, in the present invention, the connection can be further strengthened because of the wedge shape.
【００１４】また、本発明において、加熱及び加圧処理
の際の加熱温度を１１００〜１４００℃としたのは、１
１００℃未満では硬化層膜の生成が見られず、一方、１
４００℃を越えると母材金属の劣化が生じるので、好ま
しく無いからである。In the present invention, the heating temperature during the heating and pressurizing treatment is set to 1100 to 1400 ° C.
If the temperature is lower than 100 ° C., no formation of a cured layer film is observed.
If the temperature exceeds 400 ° C., the base metal deteriorates, which is not preferable.
【００１５】また、本発明において、加熱及び加圧処理
の際の雰囲気の窒素圧を１ＭＰａとしたのは、１ＭＰａ
未満では、母材金属表面に硬化層性膜の形成ができない
ためである。In the present invention, the nitrogen pressure in the atmosphere during the heating and pressurizing treatment is set to 1 MPa.
If the amount is less than the above, a cured layer film cannot be formed on the surface of the base metal.
【００１６】また、本発明において，加熱及び加圧時間
を１０分以上としたのは，１０分未満では、表面に硬化
層性膜の形成が不十分であるからである。In the present invention, the reason why the heating and pressurizing time is set to 10 minutes or more is that if the time is less than 10 minutes, the formation of a hardened layer film on the surface is insufficient.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。Embodiments of the present invention will be described below.
【００１８】厚さ３ｍｍのモリブデンの板を酸洗浄によ
り清浄化した後、カーボン粉末を有機溶剤で分散させた
ぺーストを塗布し、乾燥後、下記表１に示した条件で、
表面に硬化層被膜を生成させた。得られた生成膜の厚さ
をＳＥＭ（走査型電子顕微鏡）、組成をＥＰＭＡで測
定、定量した。その結果を下記表２に示した。After a 3 mm-thick molybdenum plate is cleaned by acid washing, a paste in which carbon powder is dispersed with an organic solvent is applied, dried, and dried under the conditions shown in Table 1 below.
A cured layer coating was formed on the surface. The thickness of the resulting film was measured and quantified by SEM (scanning electron microscope) and the composition by EPMA. The results are shown in Table 2 below.
【００１９】[0019]
【表１】 [Table 1]
【表２】 次に、本発明の実施の形態で得られた試験片の本発明合
金５と比較合金５について、表面からの硬さ分布を測定
した。その結果を図１に示した。[Table 2] Next, the hardness distribution from the surface was measured for the alloy 5 of the present invention and the comparative alloy 5 of the test pieces obtained in the embodiment of the present invention. The result is shown in FIG.
【００２０】図１に示すように、本発明合金５の膜厚８
５μｍの硬化層膜を備えた高融点金属材料の硬度は、黒
丸を結んだ曲線で示されるように、表面から６０μｍを
越えると次第に硬度が低下し、膜厚７０μｍを境にして
急激に硬度が低下し、１００μｍの母材金属内において
も、黒四角を結んだ曲線で示される比較合金よりもその
硬度が２倍有することが判明した。As shown in FIG. 1, the alloy 5 of the present invention has a thickness of 8 mm.
As shown by the curve connecting the black circles, the hardness of the refractory metal material provided with the hardened layer film of 5 μm gradually decreases when it exceeds 60 μm from the surface, and the hardness rapidly increases at the boundary of the film thickness of 70 μm. It was found that the hardness of the base metal of 100 μm was twice as high as that of the comparative alloy shown by the curve connecting the black squares.
【００２１】以上説明した本発明の実施の形態において
は、モリブデン材料についてのみ説明したが、モリブデ
ン合金材料についても、本発明を適用できることは明ら
かである。In the embodiment of the present invention described above, only the molybdenum material has been described. However, it is clear that the present invention can be applied to a molybdenum alloy material.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
モリブデン又はモリブデン合金に耐摩耗性を有する表面
硬化層を備えた高融点金属材料及びその製造方法を提供
することができる。As described above, according to the present invention,
The present invention can provide a high melting point metal material provided with a surface hardened layer having wear resistance on molybdenum or a molybdenum alloy, and a method for manufacturing the same.
【図１】本発明の実施の形態による表面硬化層を備えた
高融点金属材料の表面からの距離と硬度との関係を示す
図である。FIG. 1 is a diagram showing the relationship between the distance from the surface and the hardness of a refractory metal material provided with a surface hardened layer according to an embodiment of the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 良治 富山県富山市岩瀬古志町２番地 東京タン グステン株式会社富山製作所内 (72)発明者 五十嵐 廉 富山県富山市岩瀬古志町２番地 東京タン グステン株式会社富山製作所内 (72)発明者 土井 良彦 東京都台東区東上野五丁目24番８号 東京 タングステン株式会社内 Ｆターム(参考） 4K028 AA02 AB02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ryoji Yamamoto 2nd Iwase Koshi-cho, Toyama City, Toyama Prefecture Tokyo Tongues Ten Co., Ltd. (72) Inventor Yoshihiko Doi 5-24-8 Higashi Ueno, Taito-ku, Tokyo F-term in Tokyo Tungsten Co., Ltd. 4K028 AA02 AB02
Claims (6)
母材金属の表面に窒素と炭素とを含有した表面硬化層を
有することを特徴とする表面硬化層を有する高融点金属
材料。1. A refractory metal material having a hardened surface layer, comprising a hardened layer containing nitrogen and carbon on a surface of a base metal made of molybdenum or a molybdenum alloy.
点金属材料において、前記表面硬化層は、最大硬度Ｈ０
が前記母材金属の硬度Ｈ１に対して，Ｈ０／Ｈ１≧５な
る関係を有することを特徴とする表面硬化層を有する高
融点金属材料。2. The refractory metal material having a surface hardened layer according to claim 1, wherein the surface hardened layer has a maximum hardness H0.
Has a relationship of H0 / H1 ≧ 5 with respect to the hardness H1 of the base metal, a refractory metal material having a surface hardened layer.
表面硬化層を有する高融点金属材料において，前記表面
硬化層と前記母材金属との界面が楔状に結合されている
ことを特徴とする表面硬化層を有する高融点金属材料。3. The refractory metal material having a surface hardened layer according to claim 1, wherein an interface between the surface hardened layer and the base metal is wedge-shaped. A high melting point metal material having a characteristic surface hardened layer.
点金属材料を製造する方法であって、前記母材金属の表
面に炭素供給源を塗布し、窒素雰囲気中で加熱及び加圧
処理して前記表面硬化層を形成することを特徴とする表
面硬化層を有する高融点金属材料の製造方法。4. A method for producing a refractory metal material having a surface hardened layer according to claim 1, wherein a carbon source is applied to the surface of the base metal, and heating and pressure treatment is performed in a nitrogen atmosphere. Forming a hardened metal material having a hardened surface layer.
点金属材料の製造方法において、前記加熱処理は、１１
００〜１４００℃の温度範囲で行われることを特徴とす
る表面硬化層を有する高融点金属材料の製造方法。5. The method for producing a refractory metal material having a surface-hardened layer according to claim 4, wherein the heat treatment is performed by:
A method for producing a refractory metal material having a surface-hardened layer, which is performed in a temperature range of 00 to 1400 ° C.
点金属材料の製造方法において、前記加圧処理は、窒素
圧１ＭＰａ以上で行われ、前記加熱及び加圧処理時間
は、１０分以上であることを特徴とする表面硬化層を有
する高融点金属材料の製造方法。6. The method for producing a refractory metal material having a surface-hardened layer according to claim 5, wherein the pressure treatment is performed at a nitrogen pressure of 1 MPa or more, and the heating and pressure treatment time is 10 minutes or more. A method for producing a high-melting-point metal material having a hardened surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000104437A JP2001295023A (en) | 2000-04-06 | 2000-04-06 | High melting point metallic material having surface hardened layer and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000104437A JP2001295023A (en) | 2000-04-06 | 2000-04-06 | High melting point metallic material having surface hardened layer and its producing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001295023A true JP2001295023A (en) | 2001-10-26 |
Family
ID=18617977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000104437A Pending JP2001295023A (en) | 2000-04-06 | 2000-04-06 | High melting point metallic material having surface hardened layer and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001295023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005106055A1 (en) * | 2004-04-30 | 2005-11-10 | Japan Science And Technology Agency | High melting point metal based alloy material exhibiting high strength and high recrystallization temperature and method for production thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757867A (en) * | 1980-09-26 | 1982-04-07 | Hitachi Ltd | Surface hardening method of titanium and titanium alloy |
| JPS59208066A (en) * | 1983-05-13 | 1984-11-26 | Toshiba Corp | Method for working internally nitrided molybdenum-zirconium alloy |
| JPS63153232A (en) * | 1986-12-16 | 1988-06-25 | Toyota Motor Corp | Meal fiber-reinforced metallic composite material and its production |
| JPH04232247A (en) * | 1990-07-04 | 1992-08-20 | Degussa Ag | Method for applying nitride layer to member composed of titanium and titanium alloy |
| JP2001288556A (en) * | 2000-04-03 | 2001-10-19 | Allied Material Corp | Refractory-metal material with oxidation resistant layer, and manufacturing method |
-
2000
- 2000-04-06 JP JP2000104437A patent/JP2001295023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757867A (en) * | 1980-09-26 | 1982-04-07 | Hitachi Ltd | Surface hardening method of titanium and titanium alloy |
| JPS59208066A (en) * | 1983-05-13 | 1984-11-26 | Toshiba Corp | Method for working internally nitrided molybdenum-zirconium alloy |
| JPS63153232A (en) * | 1986-12-16 | 1988-06-25 | Toyota Motor Corp | Meal fiber-reinforced metallic composite material and its production |
| JPH04232247A (en) * | 1990-07-04 | 1992-08-20 | Degussa Ag | Method for applying nitride layer to member composed of titanium and titanium alloy |
| JP2001288556A (en) * | 2000-04-03 | 2001-10-19 | Allied Material Corp | Refractory-metal material with oxidation resistant layer, and manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005106055A1 (en) * | 2004-04-30 | 2005-11-10 | Japan Science And Technology Agency | High melting point metal based alloy material exhibiting high strength and high recrystallization temperature and method for production thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5809901B2 (en) | Laminate and method for producing laminate | |
| JP5376952B2 (en) | Method for manufacturing molybdenum-titanium sputtering plate and target | |
| KR101361986B1 (en) | Rotation tool | |
| JPS6217080A (en) | Method of joining silicon carbide formed body members | |
| JPS6350402B2 (en) | ||
| US20120228131A1 (en) | Method for consolidating and diffusion-bonding powder metallurgy sputtering target | |
| TWI296640B (en) | ||
| JP4825001B2 (en) | Thermal spray deposition method for super engineering plastics laminated film | |
| JP2001295023A (en) | High melting point metallic material having surface hardened layer and its producing method | |
| JP5244481B2 (en) | Joining method of Ni-base alloy and steel | |
| RU2569870C1 (en) | Method of protective coating application to die mould for die casting | |
| JP2019143179A (en) | Sputtering target | |
| JP6366643B2 (en) | Manufacturing method of base material having sprayed film | |
| JPWO2007052743A1 (en) | Sputtering target and manufacturing method thereof | |
| JP4684383B2 (en) | Refractory metal material having oxidation resistant layer and method for producing the same | |
| CN105215365B (en) | A kind of metal-cermic coating and preparation method thereof | |
| JPS61288060A (en) | Plasma arc thermal spraying method under reduced pressure | |
| JP4081574B2 (en) | Method for manufacturing heat-resistant coated member | |
| JPH1112758A (en) | Metallic parts coated with cermet sintered compact, and their production | |
| JP4613303B2 (en) | Gradient texture coating composite material using ceramic powder and metal powder and method for producing the same | |
| RU2767970C1 (en) | Method for applying a protective coating to a metal mold for casting copper alloys | |
| JP6550227B2 (en) | Thermal spray powder, method of producing thermal spray coating, thermal spray coating, and roll | |
| JP3370800B2 (en) | Manufacturing method of composite material | |
| JP4334812B2 (en) | Corrosion-resistant wear-resistant member and manufacturing method thereof | |
| JPS61186190A (en) | Composite filter rod for building up by welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070403 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100531 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100609 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20101027 |