The effect of process parameters on pulsed Nd:YAG laser welding of Inconel 625

被引：2
|
作者：
Ramezani, H. [1 ]
Mousavi, S. A. A. Akbari [1 ]
Ebrahimzadeh, H. [1 ]
机构：
[1] Univ Tehran, Univ Coll Engn, Sch Met & Mat Engn, Tehran, Iran
来源：
ULTRAFINE GRAINED AND NANO-STRUCTURED MATERIALS IV | 2014年 / 829卷
关键词：
Laser beam welding; Inconel; 625; Ultrafine grain precipitations; Process parameters; CREEP; MICROSTRUCTURE; BEHAVIOR; ALLOY;
D O I：
10.4028/www.scientific.net/AMR.829.36
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The bead on plate welding specimens with the 1mm thickness was fabricated by Nd:YAG pulsed laser SW-1. The effects of laser process parameters on the weld dimensions, metallurgical and mechanical properties of weld metal were investigated. The results showed that both weld depth and weld width increase with voltage. Unlike base metal that has coaxial grain structure, weld metal is composed of a dendritic structure. Grain growth in the heat affected zone did not occur. However, ultrafine precipitations were deposited at the HAZ which their size was approximately between 500 nm to microns. All tensile specimens failed in the fusion zone.
引用
收藏
页码：36 / 40
页数：5
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