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Microscopic Residual Stresses Beneath a Scratch and Their Effects on Scratch-Related Crack Initiation of Thermally Treated UNS N06690 in High-Temperature Pressurized Water
J. Q. Wang; F. Huang; E. H. Han; F. J. Meng
2013
Source PublicationCorrosion
ISSN0010-9312
Volume69Issue:9Pages:893-899
AbstractThe microscopic residual stresses beneath scratches on thermally treated (TT) UNS N06690 have been measured using synchrotron radiation x-ray diffraction; the effect of these residual stresses on initiating stress corrosion cracking (SCC) has been studied in 10% sodium hydroxide (NaOH) + 10 g/L lead oxide (PbO) solution at 330 C. Results show that scratching causes local residual tensile stresses parallel to the scratching direction at the scratched surface and local residual compressive stress normal to the scratching direction beneath the scratch. The residual tensile stresses at the scratched surface will act as a precursor of SCC. The residual compressive stresses beneath the scratch cannot stop crack growth of N06690 TT in 10% NaOH + 10 g/L PbO solution at 330 C.
description.department[wang, jianqiu ; huang, fa ; han, en-hou] chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china. [meng, fanjiang] shanghai nucl engn res & design inst, shanghai, peoples r china. ; wang, jq (reprint author), chinese acad sci, inst met res, state key lab corros & protect met, shenyang 110016, peoples r china. ; wangjianqiu@imr.ac.cn
KeywordNickel-based Alloy Residual Stress Scratch Stress Corrosion Cracking Synchrotron Radiation X-ray-diffraction Corrosion Cracking Compressive Stress Alloy 690tt Oxidation Steel Lead Environments
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71535
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
J. Q. Wang,F. Huang,E. H. Han,et al. Microscopic Residual Stresses Beneath a Scratch and Their Effects on Scratch-Related Crack Initiation of Thermally Treated UNS N06690 in High-Temperature Pressurized Water[J]. Corrosion,2013,69(9):893-899.
APA J. Q. Wang,F. Huang,E. H. Han,&F. J. Meng.(2013).Microscopic Residual Stresses Beneath a Scratch and Their Effects on Scratch-Related Crack Initiation of Thermally Treated UNS N06690 in High-Temperature Pressurized Water.Corrosion,69(9),893-899.
MLA J. Q. Wang,et al."Microscopic Residual Stresses Beneath a Scratch and Their Effects on Scratch-Related Crack Initiation of Thermally Treated UNS N06690 in High-Temperature Pressurized Water".Corrosion 69.9(2013):893-899.
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