3-DIMENSIONAL NUMERICAL-MODEL FOR LASER TRANSFORMATION HARDENING OF METALS

被引：20

作者：

GU, BW

MA, TC

BROWN, SK

MANNIK, L

机构：

[1] Ontario Hydro Research Division, Toronto

[2] Quantum Electronics Institute, South China Normal University, Guangzhou

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 1994年 / 10卷 / 05期

关键词：

D O I：

10.1179/mst.1994.10.5.425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A three dimensional numerical model has been developed to calculate the transient temperature field during the laser transformation hardening of metal surfaces. The model takes into account the finite dimensions of the substrate, the temperature dependence of the physical properties, the laser scanning velocity, and the surface heat loss through convection and radiation. The model is used to predict the temperature distribution in the substrate and the phase transformation depth resulting from the laser surface treatment. Good agreement is demonstrated with experimental results for the laser hardening of a zirconium alloy.

引用

页码：425 / 430

页数：6

共 18 条

[1] CRITICAL HEAT-TRANSFER ANALYSIS OF PULSED LASER MELTING OF PURE METALS [J].