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

Yoshinori Katayama, Motoji Tsubota, Yoshiaki Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationCanadian Nuclear Society - 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007
Pages930-936
Number of pages7
Publication statusPublished - 2007 Dec 1
Externally publishedYes
Event13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007 - Whistler, BC, Canada
Duration: 2007 Apr 192007 Apr 23

Publication series

NameCanadian Nuclear Society - 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems 2007
Volume2

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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