材料工程2024，Vol.52Issue(7)：83-93,11.DOI:10.11868/j.issn.1001-4381.2023.000704
GX4CrNi13-4马氏体不锈钢激光熔覆工艺参数优化和仿真模拟
Optimization and simulation of laser cladding process parameters for GX4 CrNi13-4 martensitic stainless steel
摘要
Abstract
To improve the quality of laser cladding,a finite element analysis process was established,focusing on laser power,scanning speed and powder feed rate as the main process parameters,aiming to reduce the research and development cycle and economic costs of optimizing cladding process parameters.By comparing the temperature and stress field simulation of GX4CrNi13-4 martensitic stainless steel laser cladding data with experimental results,the forming quality under different parameters is verified,optimizing the laser cladding process parameters.The results indicate that the adjustment range of laser power should be controlled between 1800 W to 2000 W to avoid substrate penetration and ensure sufficient density;increasing the powder feed rate effectively reduces temperature and residual stress.Among the three process parameters,laser power has the most significant impact on cladding quality.A comprehensive analysis of density and microhardness tests to assess the cladding quality and residual stress distribution under different parameters reveals that the optimal combination of process parameters is a laser power of 1800 W,scanning speed of 10 mm/s,powder feed rate of 10 g/min.The experimental results are consistent with the trends of stress field simulations,further validating the accuracy of the simulation data.关键词
GX4CrNi13-4马氏体不锈钢/工艺参数优化/有限元模拟/温度场/应力场Key words
GX4CrNi13-4 martensitic stainless steel/process parameters optimization/finite element simu-lation/temperature field/stress field分类
矿业与冶金引用本文复制引用
张华炜,何凌欢,侯娟,李家民,黄爱军..GX4CrNi13-4马氏体不锈钢激光熔覆工艺参数优化和仿真模拟[J].材料工程,2024,52(7):83-93,11.基金项目
深圳市协同创新科技计划-国际科技合作项目资助(GJHZ20200731095203011) （GJHZ20200731095203011）
