冶炼方法和热处理工艺对0Cr12Mn5Ni4Mo3Al高强不锈钢带力学性能和组织的影响  被引量:2

Effect of Melting Route and Heat Treatment on Mechanical Properties and Structure of 0Cr12Mn5Ni4Mo3Al Strips

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作  者:孙永庆[1] 梁剑雄[1] 杨志勇[1] 宋为顺[1] 

机构地区:[1]钢铁研究总院结构材料研究所,北京100081

出  处:《钢铁》2009年第1期76-78,共3页Iron and Steel

摘  要:研究了热处理对采用电炉+炉外精炼(LF)+电渣重熔冶炼的工业用和实验室50妇真空感应炉+电渣重熔冶炼的试验用0Crl2Mn5Ni4Mo3Al高强度不锈钢带(0.8mm和0.5mm)的力学性能和组织的影响。结果表明,实验室得到的钢材更为洁净,组织中保留有合理的残余奥氏体含量;与采用同样热处理制度的工业钢带相比,在保持或提高伸长率的同时,抗拉强度提高50-85MPa,杯突值提高1~3mm;适当调节Cr、Ni的当量比以及采用合理的锻造、轧制工艺可以消除钢带组织中δ-铁素体的不利影响,更大限度发挥材料潜力。0Crl2MnSNi4Mo3Al stainless steel strips, 0.5 mm and 0.8 mm in thickness, made from ingots prepared by EAF+LF+ESR and laboratory 50 kg VIM+ ESR were studied. The results show that lab-strips were cleaner and had appropriate residual austenite. Compared with industrial strips, tensile strength and cupping values of lab- strips were higher by 50-85 MPa and 1-3 mm respectively with same elongation. The proper Crq/Niq ratio and forging, rolling technology could give better structure with less influence of δ-ferrite.

关 键 词:0Cr12Mn5Ni4Mo3Al 高强不锈钢 时效温度 力学性能 

分 类 号:TG161[金属学及工艺—热处理]

 

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