摘要
利用激光熔覆技术在Q235钢表面制备了TiN-TiB增强FeCoCrNiMn高熵合金涂层,研究了TiN-TiB增强FeCoCrNiMn高熵合金涂层的微观组织和耐磨性能。结果表明:TiN-TiB增强FeCoCrNiMn高熵合金涂层主要是由FCC固溶体、TiN和TiB相组成。弥散分布的TiB和TiN促使高熵合金涂层中粗大的树枝晶脆断为短棒状树枝晶和等轴晶,组织更加均匀细小。与FeCoCrNiMn高熵合金涂层相比,TiN-TiB增强FeCoCrNiMn高熵合金涂层的显微硬度提高了17.70%,磨损失重量降低了44.23%。
TiN-TiB reinforced FeCoCrNiMn high entropy alloy coatings were prepared on Q235 steel by laser cladding.The microstructure and wear resistance of TiN-TiB reinforced FeCoCrNiMn high entropy alloy coatings were studied systematically.The results showed the phases of TiN-TiB reinforced FeCoCrNiMn high entropy alloy coatings were FCC solid solution,TiN and TiB phases.Some dispersed TiB and TiN particles promoted the brittle fracture of some coarse dendrites to form short rodlike dendrites and equiaxed grains in the high entropy alloy coatings,and fined and uniformed the microstructure.Compared with FeCoCrNiMn high entropy alloy coatings,the microhardness of TiN-TiB reinforced FeCoCrNiMn high entropy alloy coatings was improved by 17.70%,the mass loss of the coatings was reduced by 44.23%.
作者
赵义阳
詹凤琪
张传舰
夏子程
丁林
ZHAO Yiyang;ZHAN Fengqi;ZHANG Chuanjian;XIA Zicheng;DING Lin(School of Mechanical and Automotive Engineering,West Anhui University,Lu’an 237012,Anhui China)
出处
《铸造工程》
2025年第1期20-23,共4页
Foundry Engineering
基金
省级大学生创新训练项目(2021012668,S202410376170,WXXY2024113)。
