JP4668793B2 - 耐摩耗部品及びその製作方法 - Google Patents
耐摩耗部品及びその製作方法 Download PDFInfo
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- JP4668793B2 JP4668793B2 JP2005514829A JP2005514829A JP4668793B2 JP 4668793 B2 JP4668793 B2 JP 4668793B2 JP 2005514829 A JP2005514829 A JP 2005514829A JP 2005514829 A JP2005514829 A JP 2005514829A JP 4668793 B2 JP4668793 B2 JP 4668793B2
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- JP
- Japan
- Prior art keywords
- sample
- wear
- nitriding
- layer
- compound layer
- 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.)
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Powder Metallurgy (AREA)
Description
Crを含有する鉄系合金粉末あるいはCrを含有する鉄系合金粉末にMn、Ti、Vのうち少なくとも一種の金属元素を含有する合金粉末を使用して圧粉体焼結成形法で素材を成形し、浸炭成分の入っていない窒化処理を施し、表面を化合物層と拡散層と基地の混合層としたので、耐摩耗部品を仕上げ加工する際に、柔らかい基地部分の加工量が多くなり、微少な窪みが形成され油溜まりを形成することになり、さらに、耐摩耗部品を運転すると、柔らかい基地部分に微少な摩耗が発生して油溜まりを形成することになり、焼き付きのない信頼性の高い耐摩耗部品を実現することができる。
本発明にかかる耐摩耗部品は、例えばローリングピストン等に設けられているベーン等として使用されるもので、例えば粉末ハイス(粉末ハイスピード鋼)等のCrを含有する鉄系合金粉末に対し約1200℃の温度で真空焼結を行って素材を成形した後、焼き入れ処理を行ってマルテンサイト組織とし、さらに焼き戻しの熱処理を480℃〜580℃で行ってソルバイト組織にした後に、浸炭成分を排除した状態で焼戻し温度以下の400℃で約6時間のガス窒化処理を施したものである。
(1)窒化後の材料の表面は素材の表面状態を継続しており、試料X及び試料Zは表面に微細析出物が多数認められるが、試料Yは析出物が少なく平面的である。
(2)窒化後の深さ0.01mm及び0.05mmの部位の硬さは、試料Z、X、Yの順に前者ほど高く、表層硬さは表面析出物の密度と関連している。
(3)窒化の難易は、表層に生じる合金元素の濃化、濃度分布状態及び微少酸化物粒子等の表面活性化現象が支配している。
2 化合物層
3 混合組織
8 空孔と空孔の間のマイクロビッカースの圧痕
Claims (8)
- Crを含有する鉄系合金粉末を使用して圧粉体焼結成形で素材を成形し、浸炭成分を排除した窒化処理を施し、表面をFe−Cr−Nの化合物層とFe−Cr−Nの拡散層と基地の混合組織としたことを特徴とする耐摩耗部品の製作方法。
- Crを含有する鉄系合金粉末にMn、Ti、Vのうち少なくとも一種の金属元素を含有する合金粉末を使用して圧粉体焼結成形で素材を成形し、浸炭成分を排除した窒化処理を施し、表面をFe−Cr−Nの化合物層とFe−Cr−Nの拡散層と基地の混合組織としたことを特徴とする耐摩耗部品の製作方法。
- 表面に空孔が存在し、空孔の近傍をFe−Cr−Nの化合物層で、空孔から離れるにしたがいFe−Cr−Nの拡散層と基地との混合組織としたことを特徴とする請求項1あるいは2に記載の耐摩耗部品の製作方法。
- Crを含有する鉄系合金粉末を使用して圧粉体焼結成形で素材を成形し、浸炭成分を排除した窒化処理を施し、表面をFe−Cr−Nの化合物層とFe−Cr−Nの拡散層とソルバイトの基地組織の混合組織としたことを特徴とする耐摩耗部品の製作方法。
- 表面に空孔が存在し、空孔の近傍をFe−Cr−Nの化合物層で、空孔から離れるにしたがいFe−Cr−Nの拡散層とソルバイト組織の基地との混合組織としたことを特徴とする請求項4に記載の耐摩耗部品の製作方法。
- 前記窒化処理の前に大気処理を行うようにしたことを特徴とする請求項1乃至5のいずれか1項に記載の耐摩耗部品の製作方法。
- 前記大気処理を380℃の温度以上で行うようにしたことを特徴とする請求項6に記載の耐摩耗部品の製作方法。
- 表面にFe−Cr−Nの化合物層とFe−Cr−Nの拡散層と基地の混合組織とを有し、窒化後の焼結素材の表面のほぼ全面が0.1〜0.5μm程度の粒子あるいは突起に覆われていることを特徴とする耐摩耗部品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003361003 | 2003-10-21 | ||
JP2003361003 | 2003-10-21 | ||
PCT/JP2004/015429 WO2005037469A1 (ja) | 2003-10-21 | 2004-10-19 | 耐摩耗部品及びその製作方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2005037469A1 JPWO2005037469A1 (ja) | 2007-11-22 |
JP4668793B2 true JP4668793B2 (ja) | 2011-04-13 |
Family
ID=34463425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005514829A Expired - Fee Related JP4668793B2 (ja) | 2003-10-21 | 2004-10-19 | 耐摩耗部品及びその製作方法 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20070071630A1 (ja) |
JP (1) | JP4668793B2 (ja) |
KR (1) | KR20060126962A (ja) |
CN (1) | CN1871084A (ja) |
WO (1) | WO2005037469A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006025008B4 (de) * | 2006-05-30 | 2022-09-15 | Schaeffler Technologies AG & Co. KG | Verfahren zum Härten von Laufflächen von Wälzlagerkomponenten |
WO2013090895A1 (en) * | 2011-12-15 | 2013-06-20 | Case Western Reserve University | Transformation enabled nitride magnets absent rare earths and a process of making the same |
US10867730B2 (en) | 2011-12-15 | 2020-12-15 | Case Western Reserve University | Transformation enabled nitride magnets absent rare earths and a process of making the same |
JP6213213B2 (ja) * | 2013-12-19 | 2017-10-18 | 住友電工焼結合金株式会社 | Cr含有鉄基焼結体及びその焼結体の製造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05279814A (ja) * | 1992-03-31 | 1993-10-26 | Sumitomo Electric Ind Ltd | 焼結合金およびその製造方法 |
JPH06299284A (ja) * | 1993-04-12 | 1994-10-25 | Fuji Oozx Inc | 耐摩耗性に優れた高強度窒化焼結部材およびその製造方法 |
JP2002098077A (ja) * | 2000-09-25 | 2002-04-05 | Matsushita Electric Ind Co Ltd | ロータリ圧縮機およびその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629728A (en) * | 1949-08-22 | 1953-02-24 | Robert B Anderson | Iron nitride catalysts in carbon oxide hydrogenations |
US3368882A (en) * | 1965-04-06 | 1968-02-13 | Chromalloy American Corp | Surface hardened composite metal article of manufacture |
KR100398563B1 (ko) * | 1999-11-15 | 2003-09-19 | 마츠시타 덴끼 산교 가부시키가이샤 | 회전압축기 및 그 제조 방법 |
-
2004
- 2004-10-19 KR KR1020067007485A patent/KR20060126962A/ko not_active Application Discontinuation
- 2004-10-19 WO PCT/JP2004/015429 patent/WO2005037469A1/ja active Application Filing
- 2004-10-19 JP JP2005514829A patent/JP4668793B2/ja not_active Expired - Fee Related
- 2004-10-19 US US10/576,479 patent/US20070071630A1/en not_active Abandoned
- 2004-10-19 CN CNA2004800306670A patent/CN1871084A/zh active Pending
-
2008
- 2008-05-21 US US12/124,501 patent/US20080216923A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05279814A (ja) * | 1992-03-31 | 1993-10-26 | Sumitomo Electric Ind Ltd | 焼結合金およびその製造方法 |
JPH06299284A (ja) * | 1993-04-12 | 1994-10-25 | Fuji Oozx Inc | 耐摩耗性に優れた高強度窒化焼結部材およびその製造方法 |
JP2002098077A (ja) * | 2000-09-25 | 2002-04-05 | Matsushita Electric Ind Co Ltd | ロータリ圧縮機およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005037469A1 (ja) | 2007-11-22 |
KR20060126962A (ko) | 2006-12-11 |
WO2005037469A1 (ja) | 2005-04-28 |
US20080216923A1 (en) | 2008-09-11 |
US20070071630A1 (en) | 2007-03-29 |
CN1871084A (zh) | 2006-11-29 |
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