压力容器Issue(9)：24-30,7.DOI:10.3969/j.issn.1001-4837.2013.09.004
400℃时效对304不锈钢晶间敏化行为的影响
400 ℃Aging on Sensitization Behavior of 304 Stainless Steel
晋圣发1
作者信息
- 1. 扬子石化-巴斯夫有限责任公司，江苏南京 210048
- 折叠
摘要
Abstract
The 400 ℃aged 304 stainless steels were characterized for their degree of sensitization ( DOS) by double-loop (DL) electrochemical potentiokinetic reactivation (EPR) method.Then the chromium depletion zones of these tested specimens were observed by metallographic microscope .The results showed that the degree of sensitization of solution 304 after solution treatment did not increase under 400 ℃×10 h aging ,while the degree of sensitization of 650℃sensitized 304 increased obviously under the same 400℃×10 h aging.Thus solution treatment is very important for 304 stainless steel .Hot working process should be controlled strictly to prevent increasing of DOS and occurring of intergranular corrosion ,espe-cially for those which have not carried on solution treatment .关键词
304不锈钢/动电位再活化/敏化度/晶间腐蚀Key words
304 stainless steel/electrochemical potentiokinetic reactivation ( EPR)/degree of sensitization ( DOS)/intergranular corrosion分类
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晋圣发..400℃时效对304不锈钢晶间敏化行为的影响[J].压力容器,2013,(9):24-30,7.
