Ceramic particles induce microstructure modification to achieve excellent strength-ductility combination of additive manufactured AlSi10Mg alloy

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2025-03-26 DOI:10.1016/j.msea.2025.148259

Yating Li , Gaoqiu Sun , Zhiping Wang , Huanhuan Sun , Yaqi Deng , Xu Yuan , Xianfeng Li , Haowei Wang

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引用次数: 0

Abstract

The introduction of ceramic particles into aluminum (Al) alloys could enhance the strength of alloys but usually decrease the ductility. In this study, we employ the ceramic particles into additive manufactured AlSi10Mg alloy to enhance the strength and ductility simultaneously. The effect of TiB₂ particles on the microstructure during additive friction stir deposition (AFSD) and subsequent heat treatment was systematically studied. The results show the TiB₂ particles can refine grains during AFSD process, and improve the stability of Si particles and grain boundaries during solution treatment, and accelerate the aging response during aging treatment, leading to the rapid aging response of composite. Specifically, the TiB₂/AlSi10Mg composite aged at 170 °C for 1 h achieves excellent strength-ductility combination with the ultimate tensile strength reaching 353 MPa and the ductility reaching 7.7 %, overcoming the strength-ductility trade off in AFSDed AlSi10Mg alloys. The enhancement of the strength-ductility combination of TiB₂/AlSi10Mg composite should be attributed to grain refinement, stable Si particles and TiB₂ particles, reducing stress concentration near Si particle and preventing the crack propagation. These findings provide the new insights on tailoring microstructure and performance of additive manufactured Al alloys by ceramic particles.

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.