Author:
Liu Weidong,Li Lei,Mi Guofa,Wang Jincai,Pan Yujia
Abstract
Dilution rate is one of most important factors influencing the microstructure and performance of the laser cladding layer. In order to obtain a reasonable dilution rate in the laser cladding layer of Inconel 625 alloy, the laser cladding layers with different Fe content were prepared on the surface of 20# steel by the laser cladding technique. The influence of Fe content on the microstructure and performance of Inconel 625 alloy cladding layer was investigated. The results indicate that with the increase in Fe content in the alloy, the grain size of the cladding layer becomes coarser, the grain orientation difference increases first and then decreases, and the grain boundary angle decreases first and then increases. The hardness, high temperature wear resistance, and high temperature corrosion resistance gradually decreased. It is concluded that the dilution rate of Fe in laser cladding Inconel 625 alloy should be under 5 wt.%.
Funder
“Science and Technology Innovation Action Plan” Major Project
Subject
General Materials Science
Reference30 articles.
1. Effect of the Scanning speed on microstructural evolution and wear behaviors of laser cladding NiCrBSi composite coatings;Opt. Laser Technol.,2015
2. A comparative study on microstructure and properties of traditional laser cladding and high-speed laser cladding of Ni45 alloy coatings;Surf. Coat. Technol.,2020
3. Melt pool shape and dilution of laser cladding with wire feeding;J. Mater. Process. Technol.,2000
4. Optimization of Process Parameters for Laser Cladding Fe35A Alloy on 45 Steel Surface;Laser Optoelectron. Prog.,2021
5. Numerical simulation and experimental study of single-track laser cladding of 304 stainless steels;Laser Optoelectron. Prog.,2019
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献