摘要
激光熔覆是新型的增材制造及表面修复技术,已成为当今工业领域的研究热点。利用激光熔覆技术制备高性能的合金涂层,能够显著提高基材的耐磨、耐腐蚀、使用寿命等性能。通过对激光熔覆过程的温度场、残余应力、组织形变等的数值模拟研究进行阐述,总结了国内外目前针对上述物性参数的分布及演变规律分析所使用的数值模拟方法,揭示了残余应力、组织形变形成的机理,为获得高质量的熔覆涂层提供了一定的理论指导基础。展望了数值模拟技术在激光熔覆过程中的未来发展趋势。
Laser cladding is a new type of additive manufacturing and surface repair technology,which has become research hotspot in the industrial field.High performance alloy coating prepared by laser cladding technology can significantly improve the wear resistance,corrosion resistance and service life of the substrate.In this paper,the numerical simulation research of temperature field,residual stress and microstructure deformation in laser cladding process had been described.The numerical simulation methods used in analyzing the distribution and evolution of the above physical parameters at home and abroad was summarized.The formation mechanism of residual stress and fabric deformation were revealed,which provided a theoretical basis for obtaining high-quality cladding coating.Finally,the future development trend of numerical simulation technology in laser cladding process was prospected.
作者
何逵
曹知勤
王玥坤
张雪峰
He Kui;Cao Zhiqin;Wang Yuekun;Zhang Xuefeng(Institute of Vanadium and Titanium,Panzhihua University,Panzhihua 617000,Sichuan,China;Sichuan Vanadium&Titanium Industrial Technologies Research Institute,Panzhihua 617000,Sichuan,China)
出处
《钢铁钒钛》
CAS
北大核心
2021年第3期172-179,共8页
Iron Steel Vanadium Titanium
基金
攀枝花市科技计划项目(2020CY-G-5)
攀枝花市钒钛产业领军人才集聚攻关计划
太阳能技术集成及应用推广四川省重点实验室项目(TYNSYS-2018-Y-04)。
关键词
激光熔覆
温度场
残余应力
组织形变
数值模拟
laser cladding
temperature field
residual stress
microstructure deformation
numerical simulation
