Modeling of Grain Structure and Heat-Affected Zone in Laser Surface Melting Process

被引：8
|
作者：
Jabbareh, Mohammad Amin [1 ]
Assadi, Hamid [1 ]
机构：
[1] Tarbiat Modares Univ, Dept Mat Engn, Tehran, Iran
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2013年 / 44卷 / 04期
关键词：
MONTE-CARLO-SIMULATION; CUT-QUALITY; GROWTH; PREDICTION; STEEL; HAZ;
D O I：
10.1007/s11663-013-9834-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A combination of phase-field and cellular automata methods is used to study the effect of initial grain size and laser power density on heat-affected zone (HAZ) formation during laser surface melting. Also, an analytical model is developed to estimate the depth of HAZ as a function of initial grain size and process parameters. Both analytical and numerical results indicate that the size of HAZ, as measured with respect to the changes in the grain structure, is inversely proportional to the initial grain size. They also show how increasing the laser power leads to an increase in the extent of HAZ. The proposed models thus provide a basis for the prediction and control of HAZ in laser surface melting.
引用
收藏
页码：1041 / 1048
页数：8
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