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金属学报  2002 

氢致马氏体对304不锈钢在MgCl2中应力腐蚀的影响

, PP. 1079-1081

Keywords: 不锈钢,氢致马氏体,MgCl2应力腐蚀

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Abstract:

通过电解充氢后除气,即可在304奥氏体不锈钢中引入不同数量的氢致马氏体(ε+α',其中ε占2/3),同时并未明显改变试佯的强度和位错密度.氢致马氏体使304不锈钢脆化,塑性损失随马氏体含量升高而升高.在沸腾MgCl2溶液中慢应变速率拉伸实验表明,随氢致马氏体含量升高,应力腐蚀敏感性也升高;但当马氏体总量超过10%之后,应力腐蚀敏感性逐渐趋于一个稳定值.

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