Properties of Al-based Matrix and Diamond Composites Fabricated by Semi-solid Metal Processing

被引：0
|
作者：
Dai, Qiulian [1 ]
机构：
[1] Huaqiao Univ, MOE Engn Res Ctr Brittle Mat Machining, Xiamen 361021, Fujian, Peoples R China
来源：
ADVANCES IN CHEMICAL ENGINEERING, PTS 1-3 | 2012年 / 396-398卷
关键词：
Al-based Matrix; Diamond Composites; Semi-solid Metal Processing; Mechanical Properties; Bonding Strength; ALLOY; TOOLS;
D O I：
10.4028/www.scientific.net/AMR.396-398.440
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this paper, semi-solid metal (SSM) processing was first applied to fabricate Al-based matrix and diamond composites. A kind of Al-Cu alloy with an adequate solidification range was chosen. Samples of Al-Cu alloys were fabricated by rheocasting with different processing parameters. Specimens of Al-based matrix and diamond composites were fabricated by rheocasting and hot press sintering technology respectively. Microstructures, transverse rupture strength (TRS), hardness and wear resistance were studied. Experimental results revealed that the TRS of the Al-based matrix and diamond composites fabricated by rheocasting increased by 157% and 115% respectively compared to the ones fabricated by hot press sintering technology. The fracture surfaces of the rheocasting specimens exhibited ductile cup and cone behavior as well as strong bonding between the matrix and diamond grits.
引用
收藏
页码：440 / 445
页数：6
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