新型团球状共晶体奥氏体贝氏体钢及其抗冲击磨料磨损特性  

NEW AUSTENITEBAINITE STEEL WITH NODULAR EUTECTICSAND ITS IMPACT ABRASIVE WEAR RESISTANCE

作　　者：许振明[1,2] 姜启川 蔡英文[1,2] 何镇明[1,2] 

机构地区：[1]西北工业大学 [2]吉林工业大学

出　　处：《钢铁》1998年第3期46-50,共5页Iron and Steel

基　　金：国家自然科学基金

摘　　要：研究了新型钢的化学成分、组织结构、力学性能，重点考察了其冲击磨料磨损特性。结果表明，在中、低冲击工况下团球状共晶体能奥—贝钢（Ａｕｓｔｅｎｉｔｅ－ＢａｉｎｉｔｅＳｔｅｅｌｗｉｔｈＮｏｄｕｌａｒＥｕｔｅｃｔｉｃｓ，简称ＡＢＮＥ钢）的耐磨性均优于奥—贝钢、奥—贝球铁、团球状碳化物中锰钢，主要原因是在磨损过程中团球状共晶体能有效地减轻磨料侵入深度和阻碍微切削的作用，同时奥—贝基体具有足够的强韧性，以使冲击形成的挤压唇能承受更多的塑性变形而不脱落。Chemical composition,microstructure,mechenical properties and behaviour to resist impact abrasive wear of a new austenitebainite steel with nodular eutectics(abbreviated as ABNE steel)have been investigatedThe results show that ABNE steel possesses higher wear with nodular carbides under low and medium impact working condition,since the nodular eutectic effectively alleviates the intrusion of abrasives into worn surface and microcutting by abrasives on worn surface and austenitebainite matrix structure has high yield strength,high toughness and high strainhardening ability,which can make extruded lip bear more plastic deformation and not to fail

关 键 词：团球状共晶体 奥-贝钢 耐磨性 

分 类 号：TG142.2[一般工业技术—材料科学与工程]