A Yield Strength Model for Particle Reinforced Precipitate-Hardened Aluminum Matrix Composites

被引：0
|
作者：
Wang, Zhiping [1 ,2 ]
Xia, Peikang [1 ]
Geng, Jiwei [1 ]
Li, Yugang [1 ]
Chen, Dong [1 ]
Sha, Gang [2 ]
Li, Xianfeng [1 ]
Wang, Haowei [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2025年 / 56卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ZN-MG ALLOY; MECHANICAL-BEHAVIOR; AL; DISLOCATIONS; DUCTILITY; PREDEFORMATION; NANOPARTICLES; DEFORMATION; PERFORMANCE; KINETICS;
D O I：
10.1007/s11661-025-07717-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A yield strength model is developed for the TiB2 nanoparticle (NP) reinforced precipitate-hardened aluminum (Al) matrix (TiB2/Al-Zn-Mg-Cu) composites based on microstructure characterization. According to the performance of alloy and counterpart composites with different particle additions (1, 3, 5 wt pct) and established model, the strength increments caused by reinforced particles and precipitates were quantified. The calculated results indicate that NPs addition may deteriorate to the strengthening contribution by precipitates. In particular, the negative influence of NPs on the strength increment caused by matrix precipitates should be attributed to the formation of interface precipitates at NP/Al interface and coarse MPs near dislocations pinned by NPs. The present work paves a way to understand the strengthening mechanisms in multi-phase strengthened alloys/composites.
引用
收藏
页码：1418 / 1428
页数：11
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