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.
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