SCC behaviours of austenitic stainless steel Z3CN20-09M in high temperature water

被引：5
作者：
Lu, Y. H. [1 ]
Chen, Z. R. [1 ]
Zhu, X. F. [1 ]
Shoji, T. [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China
[2] Tohoku Univ, New Ind Creat Hatchery Ctr, Frontier Res Initiat, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2014年 / 30卷 / 15期
关键词：
Stainless steel; Stress corrosion cracking; Pitting corrosion; Intergranular corrosion; High temperature corrosion; Interfaces; STRESS-CORROSION CRACKING; PRESSURE-VESSEL; PURE WATER; GROWTH; ENVIRONMENT; BWR;
D O I：
10.1179/1743284714Y.0000000585
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stress corrosion cracking (SCC) behaviours of Z3CN20-09M stainless steel in high temperature water containing Cl- were studied. The results indicated that SCC sensitivity was inconsistent with test temperature. The minimum and maximum of SCC sensitivity occurred at 320 and 290 degrees C respectively, and SCC sensitivity at 250 degrees C fell between them. SCC crack initiated preferentially at bottom of corrosion pit or along phase boundary between austenite and ferrite, and its propagation depended on relative orientation to the phase boundary. SCC crack parallel to the phase boundary propagated along the phase boundary, while that perpendicular to the phase boundary was hindered to propagate.
引用
收藏
页码：1944 / 1950
页数：7
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