碳氮化物的析出行为对微合金化钢微观结构的影响  

Effect of Precipitation Behavior on the Microstructure of Microalloy Steel

作　　者：蒋蓉[1] 

机构地区：[1]武汉理工大学材料研究与测试中心,武汉430070

出　　处：《国外建材科技》2008年第5期15-17,共3页Science and Technology of Overseas Building Materials

摘　　要：钢的微合金化,即在钢中加入微量的铌(Nb)、钒(V)、钛(Ti)即可明显增强钢材的力学性能。在微合金化钢的强化机理中,第二相,主要是碳氮化物的析出强化是最重要的影响因素。通过研究高强度微合金钢在热处理过程中的第二相微粒析出行为,考察了温度对第二相析出顺序,析出量的影响规律。Micro-alloying was an effective method to improve the mechanical properties by alloying micro content of niobium, vanadium and titanium. Among the strengthening mechanisms, preci pitation strengthening of the second-ghase, mostly carbonide and nitrides,was the brief mechanisnl indeed. In this paper, precipitation behavior of the second-phase during the heat treatment was studied. And the relevance between precipitation and temperature was determined.

关 键 词：微合金化 第二相 析出强化 

分 类 号：TG142.13[一般工业技术—材料科学与工程]