Precipitation induced recrystallization -Clarification of new recrystallization phenomena and its application to texture control

沉淀诱导再结晶-新再结晶现象的阐明及其在织构控制中的应用

• 批准号: 19360310
• 负责人: FURUHARA Tadashi
• 金额: $ 7.9万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19360310/
• 关键词: 表面処理; 析出物; EBSD; 窒化物; 鉄鋼材料

The effects of initial α grain boundary and lath martensite structure on precipitation induced recrystallization(PIR) have been investigated. The growth of recrystallized grains is inhibited at the boundary misoriented larger than 5 degrees, resulting in the formation of new ferrite grain at these boundaries. The PIR was found to appear in the austenitic high-Cr alloy in which austenite is stabilized by the Ni addition. This implies that the PIR can takes place generally regardless of crystal structure of the matrix when the volume fraction of precipitate is higher.

已经研究了初始α晶界和马氏体结构对降水诱导的再结晶（PIR）的影响。在大于5度的边界不良方向上抑制了重结晶晶粒的生长，从而导致在这些边界形成新的铁氧体晶粒。发现PIR出现在奥氏体高质量合金中，其中奥氏体添加稳定了奥氏体。这意味着当沉淀物的体积分数更高时，无论基质的晶体结构如何，PIR通常都可以发生。

项目成果

低合金鋼のプラズマ窒化における析出及び表面硬化挙動

低合金钢等离子渗氮过程中的析出和表面硬化行为

• 发表时间: 2009
• 作者: 古原忠;富尾悠索;宮本吾郎
• 通讯作者: 宮本吾郎

Quantitative observation of nano-sized particle distribution in a nitrided Fe-1Cr alloy

氮化 Fe-1Cr 合金中纳米颗粒分布的定量观察

• 发表时间: 2009
• 作者: Y. Tomio G. Miyamoto;T. Furuhara
• 通讯作者: T. Furuhara

純鉄の浸窒焼入れ組織

纯铁渗氮淬火组织

• 发表时间: 2010
• 作者: 宮本吾郎;千葉真;紙川尚也;古原忠
• 通讯作者: 古原忠

Precipitation behavior of alloy nitrides during plasma nitriding in Fe-0.6mass%C-1mass%M (M=Al, Cr) martensitic steels

沉淀%20行为%20of%20合金%20氮化物%20期间%20等离子%20氮化%20in%20Fe-0.6mass%C-1mass%M%20(M=Al,%20Cr)%20马氏体%20钢

• 发表时间: 2009
• 期刊: Journal of the Japan Society for heat treatment 49
• 作者: Y. Tomio;S. Kitsuya;K. Oishi;K. Hono;G. Miyamoto;T. Furuhara
• 通讯作者: T. Furuhara

Precipitation behavior of alloy nitrides during plasma nitriding in Fe-0.6mass%C-1mass%M(M=Al, Cr)martensitic steels

沉淀%20行为%20of%20合金%20氮化物%20期间%20等离子%20氮化%20in%20Fe-0.6mass%C-1mass%M(M=Al,%20Cr)马氏体%20钢

• 发表时间: 2009
• 期刊: Journal of the Japan Society for heat treatment 49
• 作者: Y.Tomio;S.Kitsuya;K.Oishi;K.Hono;G.Miyamoto;T.Furuhara
• 通讯作者: T.Furuhara