Wire-arc additive manufactured Al-Cu alloy: microstructure, mechanical properties and their anisotropy

被引：11

作者：

Miao, Jiale ^{[1
]}

Chen, Jiqiang ^{[1
,4
]}

Ren, Jieke ^{[2
]}

Luo, Zhi ^{[1
]}

Fan, Zhenglin ^{[1
]}

Zhou, Zixiang ^{[1
]}

Xing, Ting ^{[1
]}

Guan, Renguo ^{[1
,3
,4
,5
]}

机构：

[1] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou, Peoples R China

[2] State Key Lab Comprehens Utilizat Low Grade Refrac, Xiamen, Peoples R China

[3] Dalian Jiaotong Univ, Engn Res Ctr Continuous Extrus, Minist Educ, Dalian, Peoples R China

[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China

[5] Dalian Jiaotong Univ, Engn Res Ctr Continuous Extrus, Minist Educ, Dalian 116028, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 15期

基金：

中国国家自然科学基金;

关键词：

Wire plus arc additive manufacturing; al alloy; heat treatment; mechanical properties; microstructure; anisotropy; ALUMINUM-ALLOYS; SINGLE-CRYSTAL; TECHNOLOGIES; JOINTS;

D O I：

10.1080/02670836.2023.2194763

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure, mechanical properties and their anisotropies of wire-arc additive manufactured Al-Cu alloy at two different printing speeds were investigated, and post heat treatment is optimised. The results show that the grains are finer and the fraction of primary second phase is lower in the alloy prepared at the faster printing speed. The aging hardening response of the solution-treated sample is significantly faster than that of the direct-aging sample, and the peak hardness is higher. The mechanical properties of the as-deposited and T6-treated alloy both show anisotropy, and the latter one is more significant. The anisotropies are mainly attributed to the high porosity in inter-layer of the samples, and these pores are more significant for the T6-treated samples.

引用

页码：2124 / 2134

页数：11

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