摘要
采用激光熔覆技术,在45#钢表面制备WO3-V2O5-C镍基熔覆层。分析了熔覆层的显微组织,测试了熔覆层的显微硬度,研究了熔覆粉末中WO3-V2O5-C的含量及激光功率对熔覆层硬度的影响。结果表明:采用WO3+V2O5+C质量分数为25%的熔覆粉末,以1.4 kW功率进行激光熔覆,所得熔覆层硬度最高,平均值高达1400HV0.3,可大大提高材料的耐磨性。
The WO3-V2O5-C Ni-based cladding layer has been prepared successfully by laser cladding on steel 45# substrate. The microstructure of cladding layer was analyzed, the microhardness of cladding layer was measured, the effect of WO3-V2O5-C content and laser power on the hardness of cladding layer was researched. The result shows that the microhardness of mass fraction of 25% WO3-V2O5-C cladding layer is maximum in 1.4 kW power,and the average value of microhardness is up to 1400HV0.3. The wear resistance of the cladding layer is greatly improved.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2013年第5期39-41,共3页
Surface Technology
基金
河南省教育厅科学技术研究重点项目(12A430006)
