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12%Cr铁素体不锈钢板材显微组织特征对腐蚀性能的影响 被引量:1

Microstructure Characteristics and Its Effects on Corrosion of 12%Cr Ferritic Stainless Steel Plate
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摘要 研究了410S和409L两种铁素体不锈钢板材热轧态显微组织特征、晶间腐蚀特征以及在6%FeCl3酸性腐蚀介质中的浸泡腐蚀特征。结果表明,410S在6%FeCl3酸性腐蚀介质中为分层腐蚀,409L则为均匀腐蚀。410S在0.5 mol/L H2SO4+0.01 mol/L KSCN溶液中有明显的晶间腐蚀,409L没有晶间腐蚀。综合分析表明:实验用钢410S的腐蚀特征由双相组织所致,而409L主要是由于Ti元素的添加使得碳化物的析出减少。 The microstructure,inter-crystal corrosion characteristics and corrosion characteristics in the medium of 6%FeCl3 acid corrosion of hot-rolled sheet of 410S and 409L ferritic stainless steel were researched.The results are as follow: a significant layered corrosion phenomenon is in the media of 6%FeCl3 acid corrosion of 410S,but uniform corrosion in the 409L.There is obvious tendency of intergranular corrosion in 0.5 mol/L H2SO4 + 0.01 mol/L KSCN solution in 410S,but not in 409L.The analysis shows that the corrosion characteristics of testing steel 410S are induced by the dual-phase microstructure,while the corrosion characteristics of 409L ferritic stainless steel is due to the decrease of carbide precipitates when adding Ti element.
作者 考肖琴 KAO Xiaoqin(Bohai Engineering Division,CNOOC Energy Tecnology & Services Oilfield Construction Engineering Co.,Tianjin 300452,China)
出处 《热加工工艺》 CSCD 北大核心 2011年第20期 68-70,共3页 Hot Working Technology
关键词 12%Cr铁素体不锈钢 双相组织 分层腐蚀 Ti稳定 晶间腐蚀 12%Cr ferrite stainless steel dual-phase microstructure layered corrosion Ti stabilized intergranular corrosion
作者简介 考肖琴(1986-),女,山东人,工程师,主要研究方向为多属材料及焊接;电话:13820818231;E-maihkaoxiaoqin@sohu.com
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