Surface structure control of ferrous materials by non-equilibrium phases of low temperature plasma treatment

低温等离子体处理非平衡相对黑色金属材料表面结构的控制

• 批准号: 23560873
• 负责人: TSUJIKAWA Masato
• 金额: $ 3.41万
• 依托单位: Osaka Prefecture University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560873/
• 关键词: plasma; S phase; stainless steel; nitriding; carburizing; surface hardening; オーステナイトステンレス鋼; 拡散; 表面改質; 硬さ; 耐食性; プラズマ; 表面処理; ステンレス鋼; 浸炭; 窒化; 耐摩耗性; DLC

A surface hardening method was established for austenitic stainless steels without degradation of anticorrosion properties. It was clarified that the hardening is occurred by the increase of supersaturated interstitial concentration, which expands the lattice, the expansion induces the more super saturation of interstitials. The depth of the hardened surface layer can be thickened by effective additional substitutional elements.Further structure formation was tried by combination of DLC coating. Adhesion of the DLC coating to hardened S phase was clarified. It also clarified that the excess surface condensation formed at the surface of a duplex layer structure by carbon and nitrogen diffusion can be removed effectively by specific Ar plasma irradiation conditions.

建立了一种不降低奥氏体不锈钢耐腐蚀性能的表面硬化方法。结果表明，硬化是由于过饱和间隙原子浓度的增加，使晶格膨胀，导致材料的过饱和程度增加而发生的。通过有效的替代元素的添加，可以增厚表面硬化层的深度。阐明了DLC涂层对硬化S相的粘附性。它还阐明了通过碳和氮扩散在双层结构的表面处形成的过量表面冷凝可以通过特定的Ar等离子体照射条件有效地去除。

项目成果

Hardness profile improvement of plasma nitrided high speed steel by glow discharge heating

辉光放电加热等离子渗氮高速钢的硬度分布改善

• 发表时间: 2011
• 期刊: International Heat Treatment and Surface Engineering
• 作者: M. Tsujikawa;T. Sone;M. Egawa;N. Ueda;K. Higashi
• 通讯作者: K. Higashi

Effect of active screen on S phase characteristics at plasma carburizing of austenitic stainless steel

活性屏对奥氏体不锈钢等离子渗碳S相特性的影响

• 发表时间: 2012
• 作者: Nobuyuki Kanayama;Masato Tsujikawa;Yu Ueda;Kenji Higashi
• 通讯作者: Kenji Higashi

導体レーザによる球状黒鉛鋳鉄製プレス金型の表面焼入れ

使用导体激光对球墨铸铁冲压模具进行表面硬化

• 发表时间: 2013
• 期刊: 鋳造工学
• 作者: 友廣和照;角井洵;岩田寛之;後藤光宏;竹下司;辻川正人
• 通讯作者: 辻川正人

半導体レーザによる球状黒鉛鋳鉄製プレス金型の表面焼入れ

利用半导体激光对球墨铸铁冲压模具进行表面硬化

• 发表时间: 2013
• 期刊: 鋳造工学
• 作者: 友廣和照;角井 洵;岩田寛之;後藤光宏;竹下 司,辻川正人
• 通讯作者: 竹下 司,辻川正人

Anti Chipping Treatment of Nitrided High-Speed Steel by Plasma Bombardment

氮化高速钢的等离子轰击防崩角处理

• 发表时间: 2012
• 作者: Masato TSUJIKAWA;Takumi SONE;Motoo EGAWA;Nobuhiro UEDA;Kenji HIGASHI;Kazuhiro NAKATA
• 通讯作者: Kazuhiro NAKATA