Clarifying the physicochemical mechanism on the intergranular stress corrosion cracking of non-sensitized materials by nano-mechanical-technology

纳米机械技术阐明非敏化材料晶间应力腐蚀开裂物理化学机理

• 批准号: 22360396
• 负责人: YONEZAWA Toshio
• 金额: $ 11.73万
• 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: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22360396/
• 关键词: 原子力材料; 環境強度; 応力腐食割れ; ナノメーター; SPring-8; 粒界構造; 残留応力; 積層欠陥エネルギー; 冷間加工; Spring-8

Using highly adjusted test materials, following items were investigated and evaluated;1) intergranular stress corrosion initiation atress and intergranular local stress, 2) stacking fault energy near grain boundaries, 3) identification of oxide film by in-situ X-ray diffraction, 4) long-term stress corrosion cracking characterization. Based onthese analyses, the physicochemical mechanism on the intergranular stress corrosion cracking of non-sensitized materials was clarified, from the view points of stress, materials and environment.

使用高度调整的试验材料，对下列项目进行了研究和评价：1)晶间应力腐蚀起始应力和晶间局部应力，2)晶界附近的层错能，3)原位X射线衍射法鉴定氧化膜，4)长期应力腐蚀开裂特性。在此基础上，从应力、材料和环境的角度阐明了非敏化材料晶间应力腐蚀开裂的物理化学机理。

项目成果

Stress Corrosion Cracking Susceptibility ofStrain Hardened Austenitic Stainless Steels in Simulated PWR Primary Water, International Boiling Water Reactor and Pressurized Water Reactor Materials Reliability Conference and Exhibition

模拟压水堆原水中应变硬化奥氏体不锈钢的应力腐蚀开裂敏感性、国际沸水堆和压水堆材料可靠性会议及展览

• 发表时间: 2012
• 作者: T. Yonezawa;Y. Miyahara
• 通讯作者: Y. Miyahara

"Comprehensive Nuclear Materials", Chapter 16, "Nickel Alloys"

《综合核材料》第16章“镍合金”

• 发表时间: 2011
• 作者: H. Uehara;N. Shigyo;Y. Uozumi;D. Satoh;T. Sanami ;Y. Koba;M. Takada;N. Matsufuji;他;米澤利夫
• 通讯作者: 米澤利夫

Intergranular stress corrosion cracking initiation test for cold worked 316 stainless steel in simulated PWR primary water

冷加工 316 不锈钢在模拟压水堆原水中的晶间应力腐蚀开裂试验

• 发表时间: 2012
• 作者: T. Fujii;T. Ageishi;H. Tanaka;A. Maruhashi;K. Ono;M. Hino and Y. Sakurai;T. Yonezawa
• 通讯作者: T. Yonezawa

Effect of Chemical Compositions and Heat Treatment on IGSCC Resistance for Strain Hardened Low Carbon Austenitic Stainless Steels in Oxygenated Water

化学成分和热处理对应变硬化低碳奥氏体不锈钢在含氧水中耐 IGSCC 的影响

• 发表时间: 2010
• 期刊: Proceedings ofthe FONTEVRAUD 7
• 作者: T.Yonezawa;H.Kanasaki;K.Fujimoto;M.Taneikeabe;S.Ooki;Y.Sueishi,H.Tezuka;K.Takamori;S.Suzuki
• 通讯作者: S.Suzuki

東北大学

东北大学