Gas-Tungsten Arc Welding of Dissimilar Aluminum Alloys With Nano-Treated Filler-Reference-Cited by-同舟云学术

Gas-Tungsten Arc Welding of Dissimilar Aluminum Alloys With Nano-Treated Filler

Published:2021-03-26 Issue:8 Volume:143 Page:
ISSN:1087-1357
Container-title:Journal of Manufacturing Science and Engineering
language:en
Short-container-title:

Author:

Murali Narayanan¹,Sokoluk Maximilian²,Yao Gongcheng¹,Pan Shuaihang²,De Rosa Igor¹,Li Xiaochun³

Affiliation:

1. Department of Materials Science and Engineering, University of California at Los Angeles, Los Angeles, CA 90095

2. Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, Los Angeles, CA 90095

3. Department of Materials Science and Engineering & Department of Mechanical and Aerospace Engineering, University of California at Los Angeles, Los Angeles, CA 90095

Abstract

Abstract Arc welding of dissimilar aluminum alloys is in high demand in industry but often challenging in practice. Dissonant material properties between the base metals often lead to solidification cracking in the weld metal upon cooling. Here, we report a nano-treatment approach that infuses TiC nanoparticles into filler material mimicking commercial ER5183 to successfully join dissimilar systems of AA2024 + AA5083 and AA2024 + AA7075 with the gas-tungsten arc welding process. Welded specimens were free of hot cracking, and microstructural studies revealed globular, refined grains smaller than 20 µm in the weld metals of both systems. Mechanical properties of both systems were examined with microhardness and tensile testing, and they showed sound behavior in their as-welded conditions. Nano-treatment therefore presents a new way to reliably weld dissimilar systems that are traditionally considered unweldable.

Publisher

ASME International

Subject

Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/manufacturingscience/article-pdf/doi/10.1115/1.4049849/6672193/manu_143_8_081001.pdf

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