表面技术2013，Vol.42Issue(1)：25-28,4.
热加工对复合板不锈钢表层晶间腐蚀的影响
Effects of Hot Working on Intergranular Corrosion on Composite for Stainless Steel Plate Surface
摘要
Abstract
It is researched that the intergranular corrosion behavior of composite plates, with low alloy steel and stainless steel, for pressure vessel after hot working. The intergranular corrosion characteristics after hot working for three common stainless steels 304,321 and 316L have been discussed. The results show that composite plates after explosive cladding, micro-structure of 321 steel shows a pitting corrosion characteristic, but has a little step structures, the structures of 304 steel is obvious types of intergranular corrosion, and need to improve by heat treatment; Moreover, that character of 316L steel is most serious, the processes of heat treatment is need reduce. The process of 321 steel, heat treatment is not excess, which would cause intergranular corrosion, but the tendency of intergranular corrosion for 321 is lighter than 316L. Effects of heat treatment on 304 steel are obvious, intergranular corrosion tendency is the most seriously in three steels after hot working. Steel with more alloy elements (321, 316L) , the heat treatment is lower sensitive than mild steel after heat treatment at sensitizing temperature, therefore, for mild stainless steel (304) , intergranular corrosion characteristics has little obvious if heat treatment has strictly controlled. The heat treatment of mild stainless steel has significant effects, hot working process can have more effects of intergranular corrosion tendency.关键词
复合板/不锈钢/晶间腐蚀/热加工Key words
composite plate/ stainless steel/ intergranular corrosion/ hot working分类
矿业与冶金引用本文复制引用
王春雨,覃春林,王鑫宇..热加工对复合板不锈钢表层晶间腐蚀的影响[J].表面技术,2013,42(1):25-28,4.基金项目
国家自然科学基金(NSFC No.51202044) （NSFC No.51202044）
山东省自然科学基金(ZR 2011 EMM013) （ZR 2011 EMM013）
