| 塑性变形与退火对Ag-Ti3AlC2复合材料性能的影响 |
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| 引用本文： | 刘满门,崔浩,赵君,谢明,王松,王塞北,胡洁琼,吴承玲.塑性变形与退火对Ag-Ti3AlC2复合材料性能的影响[J].贵金属,2018,39(4):46-52. |
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| 作者姓名： | 刘满门 崔浩 赵君 谢明 王松 王塞北 胡洁琼 吴承玲 |
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| 作者单位： | 东北大学 材料各向异性与织构教育部重点实验室，沈阳 110819;昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明贵金属研究所 稀贵金属综合利用新技术国家重点实验室，昆明 650106,昆明理工大学 城市学院，昆明 650051 |
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| 基金项目： | 国家重点研发计划(2017YFB0305700)、国家自然科学基金(51707087、51507075)和云南省应用基础研究面上项目(2016FB092)。 |
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| 摘 要： | 研究了塑性变形和退火处理对热压烧结Ag-Ti3AlC2复合材料力学及电学性能的影响。结果表明，塑性变形+退火处理能显著提高复合材料的导电性，其中Ag-20%Ti3AlC2(体积分数)电阻率降幅达到15.02%；复合材料的抗拉强度随着变形量的增加而大幅提升，Ag-20%Ti3AlC2复合材料在Φ2 mm加工态时抗拉强度达到最高的462.42 MPa，经退火处理，其强度降低28.57%，延伸率提高435.11%，达到19.05%，综合力学性能显著提高。
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| 关 键 词： | 金属基复合材料 塑性加工 退火 电阻率 力学性能 |
| 收稿时间： | 2018/5/2 0:00:00 |
Influence of Plastic Deformation and Annealing on Properties of Ag-Ti3AlC2 Composites |
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| LIU Manmen,CUI Hao,ZHAO Jun,XIE Ming,WANG Song,WANG Saibei,HU Jieqiong and WU Chengling.Influence of Plastic Deformation and Annealing on Properties of Ag-Ti3AlC2 Composites[J].Precious Metals,2018,39(4):46-52. |
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| Authors: | LIU Manmen CUI Hao ZHAO Jun XIE Ming WANG Song WANG Saibei HU Jieqiong and WU Chengling |
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| Affiliation: | Key Laboratory of Anisotropy and Texture of Materials, Northeastern University, Shenyang 110819, China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China,State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China and City Collegeof Kunming University of Science and Technology, Kunming 650093, China |
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| Abstract: | The influence of plastic deformation and annealing on the mechanical and electrical properties of Ag-Ti3AlC2 composites prepared by hot-pressing technology was investigated. The electrical conductivity of Ag-Ti3AlC2 composites was obviously improved after plastic deformation and annealing. The electrical resistivity of Ag-20vol.%Ti3AlC2 composite was reduced by 15.02%. The tensile strength of composites significantly increased with strain. The ultimate tensile strength of Ag-20%Ti3AlC2 composite on a diameter of 2 mm reached up to 462.42 MPa. After annealing, the ultimate tensile strength decreased by 28.57%, while the elongation increased by 435.11% and reached up to 19.05%. Comprehensive mechanical properties significantly improved compared to raw composites. |
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| Keywords: | metal matrix composites plastic deformation annealing electrical resistivity mechanical property |
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