金属加工（热加工）Issue(3)：1-6,6.
高端铝合金表面激光熔覆耐磨耐蚀涂层关键技术研究进展
Research progress on key technologies of laser cladding wear and corrosion resistant coatings on the surface of high-grade aluminum alloys
摘要
Abstract
High-grade aluminum alloy components are widely applied for aerospace,petrochemical,liquid nitrogen hydrogen storage,etc.It shows a high research value in engineering applications due to its high yield,light material,and high plasticity.However,the service of aluminum alloy components is affected by manufacturing surface defects,such as poor corrosion and wear resistance,low strength and hardness,coarsening of grain,surface orange peel,etc.Therefore,further applications are limited and large-scale industrial production is not possible.Generally,surface properties of aluminum alloys can be improved by surface treatment methods.Nowadays,more surface treatment technologies are applied to aluminum alloy surfaces to exploit their industrial application value.In this paper,key technologies for the preparation of high-performance coatings by laser cladding were introduced.The current status of research on laser cladding coatings for aluminum alloys is presented.A comparative analysis of the technologies regarding the improvement of the surface properties of aluminum alloy substrates is presented in recent years.High hardness,corrosion resistance,and wear resistance coatings are successfully prepared.Then,problems in laser cladding of aluminum alloy substrates are presented.The laser reflectivity of the aluminum alloy surface is calculated.Different techniques to improve the surface properties of aluminum alloy substrates are presented.The effect of different elements on the coating of aluminum alloy substrates is analyzed.Ultimately,the use of laser cladding techniques in combination with other techniques is discussed to enhance the properties of aluminum alloy substrates.The laser power and coating material are modified to obtain superior coatings.The microstructure,corrosion and wear resistances of the coating were analyzed.And the application prospect of aluminum alloy surface coating was prospected.关键词
铝合金/激光熔覆/耐蚀耐磨涂层/关键技术/组织性能Key words
aluminum alloy/laser cladding/corrosion and wear resistant coating/key technique/microstructure and performance引用本文复制引用
张恒源,程旺军,刘鹏飞,殷远东,孙耀宁..高端铝合金表面激光熔覆耐磨耐蚀涂层关键技术研究进展[J].金属加工（热加工）,2024,(3):1-6,6.基金项目
新疆维吾尔自治区自然科学基金(2022D01C653) （2022D01C653）
哈尔滨工业大学横向项目(202207140009) （202207140009）
新疆维吾尔自治区"天池英才"高层次人才项目(51052300536). （51052300536）
