表面技术2017，Vol.46Issue(1)：78-81,4.DOI:10.16490/j.cnki.issn.1001-3660.2017.01.013
固溶处理对激光熔覆Stellite6合金涂层性能的影响
Effect of Solution Treatment on the Performance of Laser Cladding of Stellite6 Alloy Coating
李丽 1孙峰 1张尧成2
作者信息
- 1. 长春汽车工业高等专科学校,长春 130011
- 2. 常熟理工学院,江苏 苏州 215500
- 折叠
摘要
Abstract
The work aims to deposit stellite6 alloy coating on 45# steel sheet by virtue of laser cladding and study performance of the coating. Microstructure and morphological characteristics of the coating before and after heat treat-ment were analyzed by Olympus optical microscope. Mechanical property of the coating was studied by HV-1000B mi-crohardness tester. Compared with the coating without heat treatment, dendrites and cellular crystals in structure of the coating subject to heat treatment reduced significantly while isometric crystals increased. Meanwhile, grain growth, uni-form distribution of alloying elements as well as hardness in horizontal and vertical directions decreased to varying de-grees. Average microhardness in horizontal and vertical directions of the coating subject to solution treatment was HV350 and HV490 respectively; for that of the coating without solution treatment, HV520 and HV556 respectively. The hardness decreased while the structure was more uniformly distributed, and plasticity and comprehensive performance both in-creased. The application of heat treatment process to coating preparing and follow-up treatment has changed the mode of improving coating performance by simply relying on deposition parameters. Heat treatment is another way to improve the comprehensive performance of the Stellite6 alloy coating.关键词
Stellite6/钴基合金/热处理/激光熔覆/微观组织Key words
Stellite6/cobalt base alloy/heat treatment/laser cladding/microstructure分类
矿业与冶金引用本文复制引用
李丽,孙峰,张尧成..固溶处理对激光熔覆Stellite6合金涂层性能的影响[J].表面技术,2017,46(1):78-81,4.
