Journal
CORROSION SCIENCE
Volume 60, Issue -, Pages 145-152Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.03.044
Keywords
Stainless steel; Alloy; TEM; XRD; Stress corrosion
Funding
- National Natural Science Foundation of China [51105179]
- Natural Science Foundation of Jiangsu Province in China [BK2010352, BK2011478]
- College Industrialization Project of Jiangsu Province [JHB2011-38]
- National Science Foundation for Post-doctoral Scientists of China [20110491349]
- Natural Science Foundation of the Jiangsu Higher Education Institutions in China [10KJB460001]
- Jiangsu Postdoctoral Science Foundation in China [1101018B]
- Open foundation for Key Laboratory of Modern Agricultural Equipment and Technology [NZ201007]
- Talent Foundation of Jiangsu University in China [11JDG061]
- Innovation Program of Graduated Student of Jiangsu Province in China [CX108250Z]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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The effects of massive laser peening (LP) impacts on surface residual stress, micro-structure, and stress corrosion cracking (SCC) behaviour of U-bend samples were investigated by X-ray diffraction (XRD) technology, optical microscope (OM) and transmission electron microscope (TEM) observations. Two important factors to influence SCC initiation, residual stress and grain refinement, were discussed in detail by using different types of treatment processes. Results showed massive LP impacts can induce both deep compressive residual stress and refined grains in the surface layer of ANSI 304 stainless steel, and the corrosion mechanism of massive LP impacts on SCC was also analysed and revealed. (c) 2012 Elsevier Ltd. All rights reserved.
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