High-performance bulk pure Al prepared through cold spray-friction stir processing composite additive manufacturing

被引：43

作者：

Wang, Wen ^{[1
,2
,3
]}

Han, Peng ^{[1
,2
]}

Wang, Yinghui ^{[1
,2
]}

Zhang, Ting ^{[1
,2
]}

Peng, Pai ^{[1
,2
]}

Qiao, Ke ^{[1
,2
]}

Wang, Zhi ^{[1
,2
]}

Liu, Zhihao ^{[1
,2
]}

Wang, Kuaishe ^{[1
,2
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Shaanxi, Peoples R China

[2] Xian Univ Architecture & Technol, Natl & Local Joint Engn Res Ctr Funct Mat Proc, Xian 710055, Shaanxi, Peoples R China

[3] Xian Univ Architecture & Technol, Expt Teaching Demonstrat Ctr Mat Proc, Xian 710055, Shaanxi, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2020年 / 9卷 / 04期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Cold spray-friction stir processing composite additive manufacturing; Cold spray; Friction stir processing; Microstructure; Mechanical property; HALL-PETCH RELATION; MECHANICAL-PROPERTIES; DISLOCATION DENSITIES; MATRIX COMPOSITES; MICROSTRUCTURE; DEFORMATION; ALUMINUM; FABRICATION; EVOLUTION; BEHAVIOR;

D O I：

10.1016/j.jmrt.2020.06.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A bulk pure Al sample was prepared through cold spray-friction stir processing composite additive manufacturing (CFAM). The microstructure is uniform, and consists of fine and equiaxed recrystallized grains with an average grain size of 4.4 mu m. Continuous and discontinuous dynamic recrystallizations are primary recrystallization mechanisms. The ultimate tensile strength and elongation are 87 MPa and 60.3%, respectively, with the fracture mode being ductile. The order of contribution of strengthening mechanisms for the CFAM sample, from highest to lowest, is fine grain strengthening, dislocation strengthening, and grain orientation strengthening. (C) 2020 The Author(s). Published by Elsevier B.V.

引用

页码：9073 / 9079

页数：7

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