表面纳米化316L不锈钢在酸性介质中腐蚀性能的研究  

The corrosion property of 316L stainless steel aftersurface nanocrystallization in acid solution

作　　者：吕爱强[1] 张洋[1] 刘春明[1] 刘刚[2] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004 [2]中国科学院金属研究所沈阳材料科学国家联合实验室,辽宁沈阳110016

出　　处：《材料与冶金学报》2004年第2期129-132,共4页Journal of Materials and Metallurgy

基　　金：教育部跨世纪人才基金.

摘　　要：采用表面机械研磨处理(SMAT)在316L不锈钢上制备出纳米结构表层,研究表层纳米化组织的腐蚀性能.结果表明:经过60minSMAT后,样品表面形成了一定厚度的纳米表层.显微组织.由晶粒尺寸为10～30nm的双相组织(马氏体和奥氏体)组成.表层腐蚀性能在c(H2SO4)=0 05mol/L和c(Na2SO4)=0 25mol/L构成的腐蚀介质中下降.Naonstructured layer was synthesized on 316L stainless steel by surface mechanical attrition treatment (SMAT). The corrosion behavior of　the naonstructured layer was examined. It has been found that the surface layer has transformed into nanocrystalline structure with a certain thickness, which consists of martensite and austenite with grain size of 10～30nm. The corrosion resistance of the SMAT sample is lower than that of the original coarse-grained sample in c(H_2SO_4)=0.05 mol/L and c(Na_2SO_4)=0.25 mol/L aqueous solution.

关 键 词：表面机械研磨 316L不锈钢 表面纳米化 腐蚀性能 

分 类 号：TG113[金属学及工艺—物理冶金]