Fabrication and Properties of Nano-TiCx/Cu-Cr-Zr Alloy Composites

被引：1
|
作者：
Zhang, Dongdong [1 ]
Bai, Fang [1 ]
Gui, Hao [1 ]
Shi, Haitao [1 ]
Wang, Jinguo [1 ]
Jiang, Qichuan [1 ]
机构：
[1] Jilin Univ, 5988 Renmin St, Changchun 130025, Peoples R China
来源：
INTERNATIONAL SYMPOSIUM ON MATERIALS APPLICATION AND ENGINEERING (SMAE 2016) | 2016年 / 67卷
关键词：
nano-TiCx; Cu-Cr-Zr alloy; stir casting; wear resistance; combustion synthesis; MECHANICAL-PROPERTIES; ELECTRICAL-CONDUCTIVITY; COPPER MATRIX; WEAR BEHAVIOR; CU; MICROSTRUCTURE;
D O I：
10.1051/matecconf/20166706019
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Nano-sized TiCx/Cu master alloy was prepared by the in situ method of combustion synthesis and hot press consolidation in Cu-Ti-CNTs system. The nano-TiCx/Cu-Cr-Zr alloy composites were fabricated by dispersing the nano-sized TiCx/Cu master alloy into molten Cu-Cr-Zr alloy via stir casting. It was revealed that the average grain size of TiCx/Cu-Cr-Zr alloy composites was significantly refined from 90 mu m to 20 mu m, the Brinell Hardness of nano-TiCx/Cu-Cr-Zr alloy composites increased from 75.1 HB to 86.8 HB, and the wear resistance increased by 12.6%, compared with the Cu-Cr-Zr alloy. The electric conductivity slightly decreased from 64.71% IACS to 52.93% IACS. The improvements of hardness and wear resistance result from nano-TiCx and grain refinement strengthening.
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页数：8
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