Weld metal microstructural characteristics in pulsed Nd: YAG laser welding

被引：166

作者：

Ghaini, F. Malek ^{[1
]}

Hamedi, M. J.

Torkamany, M. J.

Sabbaghzadeh, J.

机构：

[1] Tarbiat Modares Univ, Dept Mat Engn, Tehran, Iran

[2] Paya Partov Laser Res Ctr, Tehran, Iran

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 11期

关键词：

pulsed laser welding; steel; microstructure; effective peak power density;

D O I：

10.1016/j.scriptamat.2007.02.019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Experimental investigations were carried out to examine the influence of laser pulse energy, duration, and travel speed on weld dimension, microstructure and hardness during overlap laser bead on plate spot welding of low carbon steel. Effective peak power density is defined for taking into account the effect of overlapping. It was found that even with full penetration welds there can be significant variation in the microstructure and hardness of weld within a weld spot due to the very rapid solidification. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：955 / 958

页数：4

共 10 条

[1]

Microstructural aspects of laser dissimilar welds of hard metals to steels [J].