A study on the diffusion-induced grain boundary migration ahead of stress corrosion cracking crack tips through advanced characterization

被引：15

作者：

Shen, Zhao ^{[1
]}

Arioka, Koji ^{[2
]}

Lozano-Perez, Sergio ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England

[2] Inst Nucl Safety Syst Inc INSS, 64 Sata,Mihama Cho, Fuki, Mihama 9191205, Japan

来源：

CORROSION SCIENCE | 2021年 / 183卷

基金：

英国工程与自然科学研究理事会;

关键词：

Austenitic alloy; Stress corrosion cracking; Diffusion-induced grain boundary migration; Chemical diffusion; Transmission electron microscopy;

D O I：

10.1016/j.corsci.2021.109328

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three austenitic alloys with different Ni content were stress corrosion cracking (SCC) tested in simulated pressurized water reactor (PWR) primary water at 320 and 360 ?C. Diffusion-induced grain boundary migration (DIGM) associated with preferential intergranular oxidation (PIO) is observed ahead of all SCC crack tips. The occurrence of DIGM is revealed to be driven by PIO-induced diffusion of Cr, Fe, and Ni. The extent of DIGM is controlled by the lateral and in-depth elemental diffusion and PIO, with these processes interconnected. Temperature and alloy composition are revealed to affect the extent of DIGM by affecting these processes.

引用

页数：15

共 50 条

[1] Observation and quantification of the diffusion-induced grain boundary migration ahead of SCC crack tips
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[2] The role of segregation in diffusion-induced grain boundary migration
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King, AH
Vilenkin, AJ
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[3] To the problem of nucleation of the diffusion-induced grain boundary migration
Ma, CY
Rabkin, E
Gust, W
DEFECT AND DIFFUSION FORUM, 1997, 143 : 1561 - 1566
[4] DIFFUSION-INDUCED GRAIN-BOUNDARY MIGRATION IN CALCITE
EVANS, B
HAY, RS
SHIMIZU, N
GEOLOGY, 1986, 14 (01) : 60 - 63
[5] A MODEL OF DIFFUSION-INDUCED GRAIN-BOUNDARY MIGRATION
CHAKI, TK
PHILOSOPHICAL MAGAZINE LETTERS, 1988, 58 (03) : 135 - 138
[6] Criteria for the occurrence of the diffusion-induced grain boundary migration
Rabkin, E
Gust, W
Fournelle, RA
INTERFACE SCIENCE, 1998, 6 (1-2) : 105 - 111
[7] ON THE MORPHOLOGY OF THE DIFFUSION-INDUCED GRAIN BOUNDARY MIGRATION (DIGM).
CHONGMO, LI
1982, V 11 (N 4): : 179 - 186
[8] DIFFUSION-INDUCED GRAIN-BOUNDARY MIGRATION IN COPPER SYSTEMS
BUTRYMOWICZ, DB
CAHN, JW
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[9] DEPENDENCE OF DIFFUSION-INDUCED GRAIN-BOUNDARY MIGRATION ON GRAIN-BOUNDARY STRUCTURE
KING, AH
CHEN, FS
JAHN, RJ
JOURNAL DE PHYSIQUE, 1988, 49 (C-5): : 617 - 622
[10] A MODEL OF DIFFUSION-INDUCED GRAIN-BOUNDARY MIGRATION - COMMENT
CHANG, CP
PHILOSOPHICAL MAGAZINE LETTERS, 1989, 59 (05) : 249 - 250

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