Atom probe field ion microscope measurements of carbon segregation at an α:α grain boundary and service failures by intergranular stress corrosion cracking

被引：26
作者：
Atrens, A [1 ]
Wang, JQ
Stiller, K
Andren, HO
机构：
[1] Univ Queensland, Div Mat, Brisbane, Qld 4072, Australia
[2] Chalmers, Dept Expt Phys, S-41296 Gothenburg, Sweden
[3] Chinese Acad Sci, Inst Met Res, State Key Lab Corros Sci, Shenyang 110015, Peoples R China
来源：
CORROSION SCIENCE | 2006年 / 48卷 / 01期
关键词：
grain boundary analysis; pipeline steel; carbon segregation; stress corrosion cracking;
D O I：
10.1016/j.corsci.2004.11.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work reports on a critical measurement to understand the intergranular stress corrosion cracking (IGSCC) of pipeline steels: the atom probe field ion microscope (APFIM) measurement of the carbon concentration at a grain boundary (GB). The APFIM measurement was related to the microstructure and to IGSCC observations. The APFIM indicated that the GB carbon concentration of X70 was similar to 10 at% or less, which correlated with a high resistance to IGSCC for X70. (C) 2005 Elsevier Ltd. All rights reserved.
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页码：79 / 92
页数：14
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