| 机械球磨对热挤压W-40Cu材料组织和性能的影响 |
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| 引用本文： | 李达人,于 洋,刘祖岩,王尔德. 机械球磨对热挤压W-40Cu材料组织和性能的影响[J]. 稀有金属材料与工程, 2009, 38(4): 738-741 |
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| 作者姓名： | 李达人 于 洋 刘祖岩 王尔德 |
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| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150001 |
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| 摘 要： | 通过对W-40cu(质量分数,%,下同)混合粉末经不同时间机械球磨后进行热挤压,获得了、W-40Cu合金.研究了机械球磨对热挤压坯料组织和性能的影响.结果表明,长时间的机械球磨对热挤压坯料组织和性能产生了不利的影响,坯料内部钨相尺寸随着球磨时间的延长而出现了明显的大小不均,同时材料的相对密度和电导率随着球磨时间的延长逐渐降低,硬度值稍有升高.
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| 关 键 词： | 机械球磨 热挤压 |
| 收稿时间： | 2008-03-29 |
| 修稿时间： | 2008-11-20 |
The Influence of Mechanical Milling on Microstructure and the Properties of W-40Cu Composite by Hot Extrusion |
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| Li Daren,Yu Yang,Liu Zuyan and Wang Erde. The Influence of Mechanical Milling on Microstructure and the Properties of W-40Cu Composite by Hot Extrusion[J]. Rare Metal Materials and Engineering, 2009, 38(4): 738-741 |
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| Authors: | Li Daren Yu Yang Liu Zuyan Wang Erde |
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| Affiliation: | Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | The mixed powder of W-40Cu ball-milled for different time was cold-pressed into a compact,then it was hot-extruded into W-40Cu composite.The effects of the mechanical ball milling on the microstructure and the performance of the composite were investigated.The results show that ball milling for long time has unbenefical effect on the microstructure and the performance of the composite.With prolonging of ball milling,the inhomogeneity of tungsten phase size within the composite appears obviously,the density ... |
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| Keywords: | W-40Cu |
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