Effect of crystal orientation on the stress corrosion cracking of directionally solidified L-grade stainless steels

Yoshinori Katayama, Motoji Tsubota, Yoshiaki Saito

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In order to clarify the SCC initiation and propagation path of L-grade stainless steel, directionally solidification material was prepared and SCC test has been carried out. Creviced bent beam (CBB) test was performed in the high temperature water. Crack initiated in the cold worked surface, which was made for accelerating the crack initiation in L-grade stainless steel, and propagated along the austenite (γ) / ferrite (δ) boundary. The γ/δ boundary had a large misorientation compared with the γ/γ boundary. It was thought that there was a close relationship between a crack path and misorientation of the neighboring crystals. After the simulated welding heat treatment (700°C/10hr), the σ phase was created in the part of σ phase, and it was considered that this phenomenon may affect the SCC susceptibility.

本文言語English
ホスト出版物のタイトルCanadian Nuclear Society - 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007
ページ930-936
ページ数7
出版ステータスPublished - 2007 12 1
外部発表はい
イベント13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007 - Whistler, BC, Canada
継続期間: 2007 4 192007 4 23

出版物シリーズ

名前Canadian Nuclear Society - 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007
2

Other

Other13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007
CountryCanada
CityWhistler, BC
Period07/4/1907/4/23

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Safety, Risk, Reliability and Quality
  • Materials Science(all)

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