Effect of heat treatment on the microstructure and properties ofin-situMg(2)Si reinforced hypereutectic Al-18%Si matrix composites
文献类型：期刊论文
| 作者 | Xu, Kai1; Wang, Jianjun2; Zhang, Shuquan3 |
| 刊名 | MATERIALS RESEARCH EXPRESS
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 7 |
| 关键词 | heat treatment in-situMg(2)Si hypereutectic Al-18%Si matrix composites microstructure properties |
| DOI | 10.1088/2053-1591/abaea2 |
| 通讯作者 | Xu, Kai(xk@ahcme.edu.cn) |
| 英文摘要 | Thein situpreparation of particle reinforced metal matrix composites (PRMMCs) can prevent the particle surface from pollution, improve the wettability of particles and matrix metals, and reduce the production cost of composites. In this paper,in situMg(2)Si reinforced hypereutectic Al-18%Si matrix composites were prepared by adding an appropriate amount of magnesium. However, the Mg2Si enhanced phase often has developed dendrites, which are easy to cause stress concentration and cut apart the matrix, resulting in the decrease of the mechanical properties of the material. Therefore, in this study, necessary solution treatment and aging treatment were carried out, and the effect of heat treatment on the microstructure and properties of the prepared composites was discussed. The results showed that thein situMg(2)Si reinforced Al-18%Si matrix composites with an ideal microstructure could be prepared by adding 4% Mg. After solution treatment at 545 degrees C for 8 h and aging treatment at 170 2 degrees C for 8 h, the coarse dendrites of Mg2Si were broke and granulated, which improved the strength, hardness and wear resistance of the composites. Compared with the common as cast hypereutectic Al-18%Si alloy, the hardness and the strength of the prepared composites were increased by 30% and 46%, respectively. Besides, the granulation process of thein situMg(2)Si phase was explained with the Gibbs-Thomson theorem in this paper. |
| WOS关键词 | AL-SI ALLOYS ; MECHANICAL-PROPERTIES ; IN-SITU ; BEHAVIOR |
| 资助项目 | Anhui Province University Natural Science Key Research Project[KJ2017A750] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000563189100001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | Anhui Province University Natural Science Key Research Project |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70567]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xu, Kai |
| 作者单位 | 1.Anhui Tech Coll Mech & Elect Engn, Sch Aeronaut & Mat, Wuhu 241000, Peoples R China 2.Anhui Tech Coll Mech & Elect Engn, Coll Mech Engn, Wuhu 241000, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 341000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Kai,Wang, Jianjun,Zhang, Shuquan. Effect of heat treatment on the microstructure and properties ofin-situMg(2)Si reinforced hypereutectic Al-18%Si matrix composites[J]. MATERIALS RESEARCH EXPRESS,2020,7. |
| APA | Xu, Kai,Wang, Jianjun,&Zhang, Shuquan.(2020).Effect of heat treatment on the microstructure and properties ofin-situMg(2)Si reinforced hypereutectic Al-18%Si matrix composites.MATERIALS RESEARCH EXPRESS,7. |
| MLA | Xu, Kai,et al."Effect of heat treatment on the microstructure and properties ofin-situMg(2)Si reinforced hypereutectic Al-18%Si matrix composites".MATERIALS RESEARCH EXPRESS 7(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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