| Autor: |
Zheng, Han Sen, Zhang, Zhi Feng, Bai, Yue Long, Xu, Yong Tao, Zhao, Hao Dong |
| Zdroj: |
Materials Science Forum; May 2020, Vol. 993 Issue: 1 p756-767, 12p |
| Abstrakt: |
A layered composite structural model with an outer wear-resistant layer of high-silicon aluminum alloy and an inner layer of ultra-high strength aluminum alloy is designed. A scaling brake drum part with layered composite was prepared by semi-solid precision forming process. The effects of process parameters such as casting temperature, specific pressure, solid layer temperature and heattreatment system on the composite interface were investigated. The results show that the casting temperature and solid layer temperature had a great influence on the interface recombination. The high forming specific pressure could effectively restrain the growth of secondary dendritesof the composite, and the proper heat treatment process could improve the morphology of the composite interface. A scaling brake drum component with A390/7050 layered composite structure was well prepared under optimal conditions. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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