| WC/Cu复合材料制备及其高温性能 |
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| 引用本文： | 王孟君,张立勇,刘心宇,甘春雷. WC/Cu复合材料制备及其高温性能[J]. 材料科学与工程学报, 2003, 21(4): 528-530 |
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| 作者姓名： | 王孟君 张立勇 刘心宇 甘春雷 |
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| 作者单位： | 1. 中南大学,材料科学与工程学院,湖南,长沙,410083
2. 中南大学,材料科学与工程学院,湖南,长沙,410083;桂林电子工业学院 |
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| 基金项目： | 教育部华中科技大学塑性成形国家重点实验室访问学者基金资助 (1 9991 53) |
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| 摘 要： | 用机械合金化法结合冷变形，制备了WC／Cu复合材料，研究了冷变形后复合材料的组织特征和高温退火时韵性能变化。结果表明：烧结后的材料经冷变形，组织呈显著纤维状，WC颗粒弥散分布，密度明显提高，达到理论密度的99．2％；复合材料经600～900℃高温退火，强度和硬度略有下降，塑性则有大幅提高；900℃退火时未发生明显的再结晶，界面结合良好；所制备的WC／Cu复合材料有优良的综合性能。
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| 关 键 词： | WC／Cu复合材料 制备 高温性能 机械合金化法 冷变形 |
| 文章编号： | 1004-793X(2003)04-0528-03 |
| 修稿时间： | 2003-01-18 |
Preparation and High-Temperature Property of WC/Cu Composite |
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| WANG Meng|jun+,ZHANG Li|yong+,LIU Xin|yu ,,GAN Chun|lei+. Preparation and High-Temperature Property of WC/Cu Composite[J]. Journal of Materials Science and Engineering, 2003, 21(4): 528-530 |
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| Authors: | WANG Meng|jun+ ZHANG Li|yong+ LIU Xin|yu GAN Chun|lei+ |
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| Affiliation: | WANG Meng|jun+1,ZHANG Li|yong+1,LIU Xin|yu 1,2,GAN Chun|lei+1 |
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| Abstract: | The microstructure and property of WC/Cu composite which was prepared using mechanical alloying(MA) were investigated respectively.As a result,the sintered material followed by cold deformation had a fibrous microstructure,a uniform distribution of WC particles,and a considerably increased density,achieving 99^2% of theoretical density.The plasticity of composite annealed at the temperature of 873 to 1173K increased considerably coupled with a slight decrease in strength and hardness.No obvious recrystallization was observed and the material exhibited an excellent thermal stability even at 1173K. |
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| Keywords: | WC/Cu composite cold deformation high|temperature annealing |
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