合金元素钒对高碳钢丝组织与性能的影响  

Effect of Vanadium on the Microstructure and Properties of High Carbon Steel Wires

作　　者：胡显军[1,2] 赵宇飞[2] 王雷 麻晗 方峰[2] 

机构地区：[1]江苏省(沙钢)钢铁研究院,江苏张家港215625 [2]东南大学材料科学与工程学院,江苏南京211189

出　　处：《钢铁》2014年第12期71-75,共5页Iron and Steel

摘　　要：钒对高碳钢丝的微观组织、力学性能及热稳定性具有显著的影响。钒元素在高碳钢中主要存在于渗碳体中,可以起到强化渗碳体的作用。添加钒元素有利于珠光体片层间距的细化,还可以增加渗碳体的热稳定性,从而抑制钢丝拉拔过程中渗碳体的分解。但在拉拔应变量较大时,富含钒的渗碳体片碎化严重,会加重钢丝在镀锌过程中的球化现象,而导致钒合金化钢丝与未添加钒元素的钢丝相比,无论镀锌与否,其扭转性能均明显下降。Vanadium has obvious effects on the microstructure, mechanical properties and thermo-stability of high carbon steel wire. In high carbon steel, vanadium mostly exists in cementites to reinforce them. The addition of vanadium is bene-ficial to the refinement of pearlite lamella spacing, and can increase the thermo-stability of cementites, so as to restrain ce-mentite dissolution during steel wire drawing. However, fragmentation occurs to cementites with rich vanadium under a larger drawing strain, and steel wire spheroidization would aggravate during galvanizing, which, compared to non-V-al-loyed steel wire, leads to the obvious decline of torsional property no matter V-alloyed steel wire is galvanized or not.

关 键 词：高碳钢丝 钒合金化 元素分布 热稳定性 

分 类 号：TG142.31[一般工业技术—材料科学与工程]