Heat Treatment of Spray Deposition SiCp/6066 Aluminum Matrix Composites

来源期刊：中南大学学报(英文版)2000年第2期

论文作者：GONG Hao-ran LI Wen-xian

文章页码：61 - 64

Key words：spray deposition; composites; solution-treatment temperature; aging

Abstract: Heat treatment of spray deposition 10% SiCp/6066 (φ(SiCp)=10%) composites was investigated by means of hardness measurement. The results show that heat treatment technology is influenced by the presence of SiC particles. Compared with the base alloy 6066, the composites have lower burning temperature and is burnt at 540℃due to the enrichment of Mg and Cu atoms in the SiCp/6066 interfaces. As a result, solution treatment of the composites should be carried out at lower temperature. The aging parameter values such as the aging temperature, the precipitation temperature ofβ′andβphases, as well as the peak aging time, become lower. The optimum heat treatment process conditions are that the composites are solution-treated at 515℃and aged at 165℃for 5 h.