高能球磨粉末冶金制备工艺对15%SiC<sub>p</sub>/2009Al复合材料性能的影响

樊建中; 左涛; 肖伯律; 张维玉; 徐骏; 石力开

高能球磨粉末冶金制备工艺对15%SiC_p/2009Al复合材料性能的影响

北京有色金属研究总院国家有色金属复合材料工程技术研究中心, 北京 100088

详细信息

通讯作者:
樊建中,博士,教授,研究方向为金属基复合材料和纳米材料 E-mail:jzfan@mail.grinm.com.cn

中图分类号: TB331
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出版历程
- 收稿日期: 2003-05-21
- 修回日期: 2003-08-18
- 刊出日期: 2004-08-14

EFFECT OF POWDER METALLURGY PROCESSES BY HIGH ENERGY BALL MILLING ON THE MECHANICAL PROPERTIES OF 15%SiC_p/2009Al COMPOSITE

National Engineering &|Technology Research Center for NonFerrous Metals Composites, Beijing General Research Institute for Nonferrous Metals, Beijing 100088, China

摘要

摘要: 采用高能球磨粉末冶金法制备了15%SiC_p/2009Al复合材料，研究了球磨转速、球磨时间、加热抽真空工艺、热压成型以及热挤压比对复合材料力学性能的影响。结果表明，球磨转速和时间、热压成型工艺是影响复合材料力学性能的重要因素。较长时间高转速球磨使SiC颗粒均匀分布，高温真空热压改善粉末之间的结合是获得高性能复合材料的关键。转速190 r/min、球磨6 h制备的复合粉末经高温真空热压、挤压后的复合材料SiC颗粒均匀分布，材料的抗拉强度高达650 MPa，延伸率大于5%。
- 高能球磨 /
- 粉末冶金 /
- 制备工艺 /
- SiC_p/Al复合材料 /
- 力学性
Abstract: A 15%SiC_p/2009Al composite was fabricated by high energy milling powder metallurgy (PM) technique. The effect of velocity and time of milling as well as PM procedure on mechanical properties of the composite was investigated. The results indicate that three procedure factors are important for properties of the composite. Long duration at high speed of milling contributes to a uniform distribution of SiC particles. Compression at high temperature and vacuum can improve bonding among powder and particle, and lead to high properties. The milled powder fabricated at velocity of 190 r/min and 6 h was compacted and extruded into the composite with uniform distribution of SiC particles, and with 650 MPa of tensile strength and exceeded 5% of elongation.
- high energy milling /
- powder metallurgy /
- fabrication procedure /
- SiC_p/Al composite /
- mechanical property