Effect of Extrusion Temperature on the Microstructure and Mechanical Properties of SiCnw/2024Al Composite

被引：4
|
作者：
Dong, Shanliang [1 ]
Zhang, Bin [2 ]
Zhan, Yuli [2 ]
Liu, Xin [2 ]
Xin, Ling [1 ,3 ]
Yang, Wenshu [1 ]
Wu, Gaohui [1 ]
机构：
[1] Harbin Inst Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Beijing Inst Control Engn, Beijing 100080, Peoples R China
[3] Beijing Inst Elect Syst Engn, Beijing 100854, Peoples R China
来源：
MATERIALS | 2019年 / 12卷 / 17期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
metal matrix composites; Al matrix composite; SiC nanowires; extrusion temperature; alignment; strengthening; SIC NANOWIRES; TENSILE PROPERTIES; HOT EXTRUSION; STRENGTHENING BEHAVIOR; SURFACE MODIFICATION; REINFORCEMENTS; PARTICLES; EVOLUTION;
D O I：
10.3390/ma12172769
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the present research work, the effect of extrusion temperature from 480 to 560 degrees C on the microstructure and mechanical behavior of the SiCnw/2024Al composite (15 vol.%) has been explored. It has been found that extrusion at higher temperature (above 520 degrees C) was beneficial for the densification of the composite, while the residual average length and alignment of the SiC nanowires were also increased with the extrusion temperature. Moreover, higher extrusion temperature was helpful for the mechanical strength of the SiCnw/2024Al composite, and the peak-aged SiCnw/2024Al composite extruded at 560 degrees C revealed the highest strength (709.4 MPa) and elastic modulus (109.8 GPa).
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页数：14
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