High-energy ball milling of Cu-5mass%C powders

被引：0
|
作者：
Jin, YP [1 ]
Guo, B [1 ]
Wang, ED [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
来源：
PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON NEW FORMING TECHNOLOGY | 2004年
关键词：
ball milling; Cu-5mass%C composite powders; grain refinement; distortion of lattice;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu-5mass%C composite powders were prepared by high-energy ball milling. Their microstructures and effects of ball milling time on their microstructure were investigated. The result shows that distortion of lattice, grain refinement and broadened diffraction peak of Cu were seen after high-energy ball milling. Within the initial 2 hours of ball milling, grain of Cu in Cu-5mass%C composite powders was refined suddenly, then slowly. Grain size of Cu was about 20nm by ball milling for 5h. Diffraction peak of graphite disappeared after 2-hour-milling. High-energy ball milling extended solid solubility of C in Cu. Microstrain of Cu in Cu-5mass%C composite powders didn't increase with milling time. After ball milling for 3h, microstrain reached the maximum value. Over 15h-ball milling hardly affected microstrain of Cu in Cu-5mass%C composite powders.
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页码：639 / 643
页数：5
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