Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening

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	Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening
	T. Chen; H. John; J. Xu; Q. H. Lu; J. Hawk; X. B. Liu
	2013
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	77 页码:230-245
摘要	The effect of surface modifications induced by machine hammer peening on pitting corrosion behavior of nickel-base alloy 718 in a 3.5 wt.% NaCl solution is investigated. Severe work hardening and high compressive residual stress are generated with surface smoothing and microstructure evolution in terms of formation of nano-grains and nano-twins in the near surface region after machine hammer peening. Electrochemical tests results show that machine hammer peening has a beneficial influence on the corrosion resistance, indicated by a significant increase of the critical pitting potential (+134 mV) accompanied with lower corrosion current density and higher polarization resistance. (C) 2013 Elsevier Ltd. All rights reserved.
部门归属	[chen, ting ; hawk, jeffrey ; liu, xingbo] natl energy technol lab, albany, or 97321 usa. [chen, ting ; liu, xingbo] w virginia univ, dept mech & aerosp engn, morgantown, wv 26506 usa. [john, hendrik ; xu, jing] baker hughes inc, d-29221 celle, germany. [lu, qiuhong] chinese acad sci, inst met res, shenyang 110015, peoples r china. ; liu, xb (reprint author), w virginia univ, dept mech & aerosp engn, morgantown, wv 26506 usa. ; xingbo.liu@mail.wvu.edu
关键词	Superalloys Xps Tem Polarization Eis Pitting Corrosion Severe Plastic-deformation 316l Stainless-steel Point-defect Model Passive Films Localized Corrosion Residual-stress Aluminum-alloy Aisi 304-stainless-steel Electrochemical-behavior Chloride Solutions
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72375
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. Chen,H. John,J. Xu,et al. Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening[J]. Corrosion Science,2013,77:230-245.
APA	T. Chen,H. John,J. Xu,Q. H. Lu,J. Hawk,&X. B. Liu.(2013).Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening.Corrosion Science,77,230-245.
MLA	T. Chen,et al."Influence of surface modifications on pitting corrosion behavior of nickel-base alloy 718. Part 1: Effect of machine hammer peening".Corrosion Science 77(2013):230-245.