The effect of prior cold work on the chloride stress corrosion cracking of 304L austenitic stainless steel under atmospheric conditions
The effect of prior cold work on the chloride stress corrosion cracking of 304L austenitic stainless steel under atmospheric conditions
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DOI：
10.1016/j.msea.2016.05.037
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发表时间：
2016-06-21
期刊：
影响因子：
6.4
通讯作者：
Wenman, M. R.
中科院分区：
文献类型：
--
作者：
Scatigno, G. G.;Ryan, M. P.;Wenman, M. R.
系统研究了冷加工对304L不锈钢氯化物诱发应力腐蚀开裂的影响。在75摄氏度和70%的相对湿度下，使用MgCl2（在常压下）腐蚀样品500小时之前，使用0%至40%的CW。样品在0.5%和5% GM之间最容易破裂；在20%及以上，不存在裂纹。此外，在5% CW以上，一些特定的定向关系变得明显，裂缝主要沿< 111 >平行于横向排列。结果表明，在CW浓度为0 ~ 20%时，微机制的协同效应可能会阻碍该系统的SCC。(C) 2016 Elsevier B.V.版权所有
A systematic study of the effect of cold work (CW) on chloride-induced stress corrosion cracking (SCC) in 304L stainless steel was performed. CW between 0% and 40% was applied prior to corrosion of specimens at 75 degrees C and 70% relative humidity, for 500 h, using MgCl2 (at atmospheric pressure). Samples cracked most readily between 0.5% and 5% GM; at 20% and above no cracks were present. Additionally, above 5% CW, some specific orientation relationships become evident, with cracks primarily aligned along < 111 > parallel to the transverse direction. The results suggest that at levels of CW >20%, the synergistic effect of micro-mechanisms may hinder SCC in this system. (C) 2016 Elsevier B.V. All rights reserved.