Vanadium-titanium Composite Infiltration Process on the Surface of Cold Working Die Steel
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摘要: 以五氧化二钒为供钒剂、二氧化钛为供钛剂,采用不同时间进行Cr12MoV冷作模具钢表面钒-钛复合渗,并研究显微组织、相结构、耐磨损性能和耐腐蚀性能。结果表明,复合渗温度890℃可以实现Cr12MoV冷作模具钢表面钒-钛复合渗,复合渗涂层由VC、TiC和少量的V8C7组成。为提高Cr12MoV冷作模具钢的耐磨损性能和耐腐蚀性能,复合渗时间优选为7 h。Abstract: Vanadium-titanium composite infiltration coating was produced on the surface of Cr12MoV cold working die steel for different time respectively with V2O5 and TiO2 as vanadium and titanium donor,and the microstructure,phase structure,corrosion and wear resistance were tested and analyzed.The results show that vanadium-titanium composite infiltration coating can be successfully produced on the surface of Cr12MoV cold working die steel at 890℃,and the composite infiltration coating is composed of VC、TiC and a spot of V8C7.To improve the corrosion resistance and wear resistance of cold working die steel,the composite infiltrating time was optimized at 7 h.
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