Tailoring the enhanced mechanical behavior of 6061Al composites via nano SiCp and micron B4Cp addition

被引：9

作者：

Xu, Jian ^{[1
]}

Wang, Chong ^{[1
]}

Guo, Enyu ^{[1
,2
]}

Ren, Zhipeng ^{[1
]}

Chen, Zongning ^{[1
,2
]}

Du, Guohao ^{[3
]}

Kang, Huijun ^{[1
,2
]}

Wang, Tongmin ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Tec, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Ningbo Inst, Ningbo 315000, Peoples R China

[3] Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Adv Res Inst, Shanghai 201204, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 27卷

基金：

中国国家自然科学基金;

关键词：

Al matrix composites; Mechanical property; Strengthening; Dual particle size; ALUMINUM-MATRIX COMPOSITES; MICROSTRUCTURE EVOLUTION; TENSILE PROPERTIES; PARTICLES; FABRICATION; STRENGTH; REINFORCEMENT; DUCTILITY; SIZE; EXTRUSION;

D O I：

10.1016/j.jmrt.2023.10.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the hybrid micron B4C particles (m-B4Cp) and nano SiC particles (n-SiCp) rein-forced 6061Al matrix composites were prepared by powder metallurgy. The synergistic effects of hybrid m-B4Cp and n-SiCp were investigated. The results showed that m-B4Cp were well dispersed in the matrix, while n-SiCp were uniformly distributed inside the grains as well as at the grain boundaries. The coupled addition of n-SiCp and m-B4Cp significantly refined the grain size of matrix from 3.60 mm to 0.91 mm. The synchrotron X-ray computed tomography (SR-CT) revealed that the volume of pores increased with increase of particle content. Compared with the composites reinforced with only one type of particle, the 6061Al composites reinforced with micro and nano dual-size particles possessed higher tensile strength, while maintaining reasonable plasticity. The strengthening contributions to the yield strength improvement of 6010Al matrix composites reinforced with micro and nano dual-size particles are resulted from thermal expansion mismatch strengthening, fine grain strengthening and Orowan strengthening caused by n-SiCp. (c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：1550 / 1562

页数：13

共 54 条

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