Effect of enhanced interfacial reaction on the microstructure, phase transformation and mechanical property of Ni-Mn-Ga particles/Mg composites | |
Tian, B. ; Cheng, Z. G. ; Tong, Y. X. ; Li, L. ; Zheng, Y. F. ; Li, Q. Z. | |
2015 | |
关键词 | Ni-Mn-Ga alloys Mg composites Powder metallurgy Microstructure Phase transformation Mechanical characterization FIELD-INDUCED STRAIN GA/POLYMER COMPOSITES POLYMER |
DOI | 10.1016/j.matdes.2015.05.051 |
英文摘要 | This study investigated the microstructure, phase transformation and mechanical property of Ni-Mn-Ga particles/Mg composites with a strong interfacial reaction between the particles and the matrix. The strong interfacial reaction was related to the large surface area and energy per unit volume of the flaky shape Ni-Mn-Ga particles that favors the reaction between the particles and matrix. The martensitic transformation behavior was largely weakened due to the interfacial reactions and thus the reduced volume fraction of Ni-Mn-Ga particles. The composites exhibited a much improved compressive strength and ductility in comparison with that of the Ni-Mn-Ga alloy. The compressive plasticity of the composites was decreased when the Ni-Mn-Ga particle content exceeded 40 wt%. In comparison with the Mg-composites with large size Ni-Mn-Ga particles, the composites with small size particles would have a much stronger interfacial reactions, which was detrimental to the phase transformation and mechanical ductility of the composites. The investigation results in this article could provide a reference for the design and preparation of the particles reinforced metal matrix functional composites. (C) 2015 Elsevier Ltd. All rights reserved.; SCI(E); CPCI-S(ISTP); 77-83; 82 |
会议录 | 1st Symposium on Cork Material and its Applications |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/493490] |
专题 | 工学院 |
推荐引用方式 GB/T 7714 | Tian, B.,Cheng, Z. G.,Tong, Y. X.,et al. Effect of enhanced interfacial reaction on the microstructure, phase transformation and mechanical property of Ni-Mn-Ga particles/Mg composites[C]. 见:. |
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