钟振前,田志凌,唐树平

• 1:钢铁研究总院分析测试所
• 2:武汉钢铁集团公司炼钢总厂

摘要(Abstract)：

利用EBSD分析了316L奥氏体不锈钢应力腐蚀穿晶裂纹的形成机制。结果表明,裂纹扩展受晶体滑移性能影响,Schmid因子小的晶粒抵制应力腐蚀裂纹扩展,Schmid因子大的晶粒有利于裂纹扩展。裂纹形核和扩展涉及晶体滑移、钝化膜破裂和阳极溶解,这些过程均在{111}滑移面上进行。在高温低应力和含氯离子的腐蚀环境的交互作用下,应力腐蚀的裂纹扩展过程符合滑移溶解机制。

关键词(KeyWords)： 应力腐蚀;准解理断口;EBSD;Schmid因子

Abstract:

Keywords:

基金项目(Foundation): 中国应急分析平台

作者(Author): 钟振前,田志凌,唐树平

DOI: 10.13289/j.issn.1009-6264.2015.11.025

参考文献(References)：

• [1]徐娜,李永德,时军波,等.不锈钢换热器盘管腐蚀开裂失效分析[J].金属热处理,2013,38(9):104-107.XU Na,LI Yong-de,SHI Jun-bo,et al.Failure analysis on corrosion cracking of heat exchanger coil made of stainless steel[J].Heat Treatment of Metals,2013,38(9):104-107.
• [2]褚武扬.氢损伤与滞后开裂[M].北京:冶金工业出版社,1988.
• [3]Sieradzki K,Rinaldi A,Friesen C,et al.Length scales in crystal plasticity[J].Acta Materialia,2006,54,(17):4533-4538.
• [4]Zhu T,Yang W,Guo T F.Quasi-cleavage processes driven by dislocation pile up[J].Acta Metallurgica et Materialia,1996,44(8):3049-3058.
• [5]Huang Y Z,Cheng Q Z,Chu W Y.corrosion-facilitating dislocation emission,motion and initiation of SCC in 310 stainless steel[J].Jornal of Materials Science and Technology,1997,13(6):483-489.
• [6]Gu B,Chu W Y,Qiao L J,et al.The effect of anodic polarization on ambient creep of brass[J].Corrosion Science,1994,36(8):1437-1445.
• [7]Lian K,Meletis E I.Environment-induced deformation localization during transgranular SCC[J].Corrosion,1996,52(5):347-353.
• [8]李金许,高克玮,宿彦京,等.钝化膜应力导致不锈钢应力腐蚀的研究[J].中国科学,2003,33(9):796-803.LI Jin-xu,GAO Ke-wei,XU Yan-jing,et al.The passivation film stress causes stress corrosion of stainless steel[J].Science in China,2003,33(9):796-803.
• [9]Asakura Y,Karasawa H.Relationships between corrosionbehavior of AISI 304 stainless steel in high temperature pure water and its oxide film structures[J].Corrosion,1989,45(2):119-124.
• [10]Venegas V,Caleyo F.EBSD Study of hydrogen induced cracking in API-5-5L-X46 pipeline steel[J].Scripta Materialia,2005,52(1):147-152.
• [11]Truman J E.The influence of chloride content,p H and temperature of test solutions on the occurrence of SCC with austenitic stainless steels[J].Corrosion Science,1976,17(8):737-746.
• [12]Schwartz A J,Kumar M.Electron Backscatter Diffraction in Materials Science[M].New York:Kluwer Academic Plenum Publishers,2000.
• [13]褚武扬,乔利杰,高克玮.阳极溶解型应力腐蚀[J].科学通报,2000,45(24):2581-2587.CHU Wu-yang,QIAO Li-jie,GAO Ke-wei.The anodic dissolution of stress corrosion[J].Chinese Science Bulletin,2000,45(24):2581-2587.

文章评论(Comment)：