Influence of heat treatment on the microstructure and mechanical properties of Al–Mg–Si alloy fabricated by double wires + arc additive manufacturing

Bibliographic Details
Title: Influence of heat treatment on the microstructure and mechanical properties of Al–Mg–Si alloy fabricated by double wires + arc additive manufacturing
Authors: Hao Zhong, Bojin Qi, Zewu Qi, Caiyou Zeng, Zihao Jiang, Yubin Zhou, Hongwei Li, Ruize Zhang, Baoqiang Cong
Source: Journal of Materials Research and Technology, Vol 30, Iss , Pp 910-918 (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Mining engineering. Metallurgy
Subject Terms: Wire + arc additive manufacturing, Al–Mg–Si aluminum alloy, Heat treatment, Microstructure, Mechanical property, Mining engineering. Metallurgy, TN1-997
More Details: Al-3.4Mg-1.7Si alloy single-pass and multi-layer thin wall components were fabricated with double wires + arc additive manufacturing procedure. Heat treatment was performed to further process the component. The microstructure and mechanical properties of the as-deposited and heat-treated components were comparatively investigated. After heat treatment, the grains grow up slightly, and the phase particles change to distribute semi-continuously, and a large number of nanoscale monoclinic β″ precipitated phases generate. The porosity increases to 0.0486% from as-deposited 0.0348%. The microhardness, ultimate tensile strength and yield strength are respectively improved by 25%,79%, and 228% with heat treatment process, with the hardness uniformity and elongation decreased.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2238-7854
Relation: http://www.sciencedirect.com/science/article/pii/S2238785424006768; https://doaj.org/toc/2238-7854
DOI: 10.1016/j.jmrt.2024.03.147
Access URL: https://doaj.org/article/a9b047c00479421db9463b43d762e59a
Accession Number: edsdoj.9b047c00479421db9463b43d762e59a
Database: Directory of Open Access Journals
More Details
ISSN:22387854
DOI:10.1016/j.jmrt.2024.03.147
Published in:Journal of Materials Research and Technology
Language:English