Paper Title:
In-Situ Observation for Elucidation of Stress Corrosion Cracking Mechanism in High-Temperature and High-Pressure Water
  Abstract

In-situ diffraction measurements were carried out on a tensile specimen of SUS304 stainless steel using a small autoclave at BL22XU at SPring-8. The temperature of circulating water in the autoclave was changed from room temperature to 561 K under ambient pressure and also under a pressure of 8.8 MPa. Tensile stress of 260 MPa was applied to the specimen at 561 K under 8.8 MPa, and a two dimensional strain distribution was obtained by calculation based on measured lattice spacings of the γ-Fe311 plane under various conditions. The interior region of the specimen showed higher strain compared with that on the surface region. After the tensile deformation in the autoclave, CT images of cross sections of the specimen were taken. Void-like images with about 50 μm in size were observed.

  Info
Periodical
Edited by
Y. Akiniwa, K. Akita and H. Suzuki
Pages
285-289
DOI
10.4028/www.scientific.net/MSF.652.285
Citation
T. Fujishiro, T. Shobu, K. Kiriyama, A. Yamamoto, "In-Situ Observation for Elucidation of Stress Corrosion Cracking Mechanism in High-Temperature and High-Pressure Water", Materials Science Forum, Vol. 652, pp. 285-289, 2010
Online since
May 2010
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