Microstructure and mechanical properties of Al/ZrC/TiC hybrid nanocomposite filler metals of tungsten inert gas welding fabricated by accumulative roll bonding

被引：44
作者：
Ahmadi, E. [1 ]
Ranjkesh, M. [2 ]
Mansoori, E. [3 ]
Fattahi, M. [4 ]
Mojallal, R. Yousefi [5 ]
Amirkhanlou, S. [6 ]
机构：
[1] Iran Univ Sci & Technol, Sch Met & Mat Engn, Tehran, Iran
[2] Univ Isfahan, Nanotechnol Engn Dept, Esfahan, Iran
[3] Razi Univ, Mat Engn Dept, Kermanshah, Iran
[4] Petr Univ Technol, Tech Inspect Engn Dept, Abadan, Iran
[5] Islamic Azad Univ, Sci & Res Branch, Mat Engn Dept, Tehran, Iran
[6] Brunel Univ, Inst Mat & Mfg, London UB8 3PH, England
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2017年 / 26卷
关键词：
Ceramic nanoparticles; Tungsten inert gas welding; Accumulative roll bonding; Microstructure; Mechanical properties; WELDED ALUMINUM JOINTS; ARB PROCESS; COMPOSITE;
D O I：
10.1016/j.jmapro.2017.02.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a new type of nanocomposite tungsten inert gas (TIG) welding filler metals with a matrix of 4043 aluminum alloy and hybrid reinforcement of ZrC and TiC nanoparticles was fabricated for the first time by accumulative roll bonding (ARB). After welding, microstructural characterizations were performed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Furthermore, the mechanical properties of hybrid nanocomposite welds were investigated by tensile and microhardness tests. The microstructural observations revealed that employing the ARB process has led to a significant grain refinement and a uniform distribution of the ceramic nanoparticles in the weld. The test results showed that using Al/ZrC/TiC hybrid nanocomposite filler metals improved considerably the tensile strength of weld. (C) 2017 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：173 / 177
页数：5
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