摘要
在高温环境中,合金零件表面很容易被氧化进而导致性能衰退,这不仅影响其使用寿命,还可能导致设备故障和安全风险。激光熔覆技术制备的涂层具有组织致密、与基体结合良好、稀释率及变形小等特点,在高温下具有卓越的抗氧化性能。鉴于此,本文对激光熔覆涂层的高温抗氧化性能进行了综述,探讨了单一元素和稀土氧化物对激光熔覆涂层高温抗氧化性能的影响,介绍了高速激光熔覆、强流脉冲电子束、超声振动和电磁辅助等新技术和辅助场在改善激光熔覆合金高温抗氧化性能方面的相关研究,并对激光熔覆合金涂层的发展趋势进行了总结和展望。
In high-temperature environments,the surface of alloy parts is easily oxidized,leading to performance degradation.This not only affects their service life,but may also cause equipment failure and safety risks.The coating prepared by laser cladding technology has the characteristics of dense structure,good bonding with the substrate,low dilution rate and deformation,and exhibits excellent oxidation resistance at high temperature.Therefore,this article provides a review of the high-temperature oxidation resistance of the coatings prepared by laser cladding,explores the effects of single element and rare earth oxides on the high-temperature oxidation resistance of laser cladding coatings,introduces the relevant research on new technologies and auxiliary fields,such as high-speed laser cladding,intense pulsed electron beam,ultrasonic vibration,and electromagnetic assistance,in improving the high-temperature oxidation resistance of laser cladding alloys,and summarizes and prospects the development trends of high-temperature oxidation resistance of laser cladding alloy coatings.
作者
张好强
武增宇
王莉娜
马占山
侯锁霞
Zhang Haoqiang;Wu Zengyu;Wang Lina;Ma Zhanshan;Hou Suoxia(College of Mechanical Engineering,North China University of Science and Technology,Tangshan 063210,Hebei,China)
出处
《激光与光电子学进展》
北大核心
2025年第13期323-335,共13页
Laser & Optoelectronics Progress
关键词
激光熔覆
高温氧化
合金成分
强化工艺
laser cladding
high-temperature oxidation
alloy composition
strengthening process
作者简介
通信作者:张好强,haoqiang790914@163.com。
