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0.02C-12Cr不锈钢板材热轧态的组织特征及其影响 预览 被引量:7

Structure Characteristics of 0.02C-12Cr Hot-rolled Stainless Steel Plate and Its Influence
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摘要 研究了0.02C-12Cr热轧不锈钢板材的金相组织组成、拉伸断口形貌以及在酸性腐蚀介质中的腐蚀特征。结果表明:此不锈钢在热轧制(空冷)后含有约30%的马氏体;其组织组成为:沿轧制方向呈条带状分布的基体铁素体,马氏体和细小弥散的(Cr,Fe)23C6碳化物颗粒;拉伸断口出现侧向分层开裂;在酸性腐蚀介质中有较明显的剥蚀分层现象。经综合分析试验用钢的断口形貌、腐蚀特征和组织特征,表明其较低的均匀伸长率、断裂形貌和腐蚀特征是由其沿轧向分布的条带组织所致。 The microstructure,tensile fracture morphology and corrosion characteristics in the acid medium of the 0.02C-12Cr hot-rolled stainless Steel plate were studied. The results show that the stainless steel in the rolling process (air-cooling) contains about 30% martensite. Its microstructure consists of ferrite matrix along rolling-direction in banded distribution, martensite and small (Cr, Fe) 23C6 carbide. Side-face layered crack in the tensile fracture and an obvious erosion layer in the media of acid corrosion appear. By comprehensive analysis of the fracture characters, corrosion features and microstructure characteristics, its low elongation, fracture morphology and corrosion features are resulted by its rolling-direction banded structure.
作者 杨瑞成 舒俊 孟威 李杰 YANG Ruicheng, SHU Jun, MENG Wei, LI Jie (1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2. Key Laboratory of Non-ferrous Metal Alloys and Processing, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China)
出处 《热加工工艺》 CSCD 北大核心 2009年第6期 35-39,共5页 Hot Working Technology
基金 甘肃省有色金属新材料重点实验室开放基金资助项目(SKL05011)
关键词 铁素体不锈钢 马氏体 碳化物颗粒 分层断口 剥蚀 ferrite stainless steel martensite carbide particle layer fracture erosion
作者简介 杨瑞成(1946-),男,江苏宝应人,教授,硕士,博导,主要从事镍基耐蚀合金及不锈钢研究:电话:0931-2755239;E-mail:yangruicheng@lut.cn.
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