Effect of Artificial Aging (T6) on Microstructure of Al-AC8H/Al2O3 MMC Produced by Stir Casting Route
The purpose of this research is to systematically study the influence of artificial aging (T6) on evaluation of microstructure changed and hardness of AI-AI2O3 composite produced by stir casting route. The AI2O3 particle reinforced previously was coated by electroless coating method to improve wetting system between A1-AC8H and AI2O3 when aluminium composites fabricated by stir casting route. The volume fraction of A12O3 which added into Al melts was various from 2％ to 22.5％. The stirring process was carried out at 500-700 rpm to achieve vortex in alumnium melt using graphite impeller for 15 minutes. The prepared aluminium composites then heat treated by T6 treatment with different aging time. Microstructure and hardness after T6 treatment were investigated. It was observed that microstructure changed after T6 while hardness increase after T6 due to the Mg2Si precipitation hardening was present in Al matrix as well as Si eutectic accumulated on the surface of AI2O3. It was found that the optimum hardness occurred after aging for 3 hours.
AI-AC8H/AI2O3 MMCs T6 treatment Si eutectic Aging
Anne. Zulfia Maman Kartaman Ajiriyanto
Department of Metallurgy and Materials, Faculty of Engineering, University of Indonesia,Kampus Bam U Centre for Nuclear Fuel Technolgy- National Nuclear Power Agency (BATAN), Centre for Development Sci
国际会议
2011 International Conference on Mechatronics and Materials Processing(2011年机电一体化与材料加工国际会议 ICMMP)
广州
英文
1552-1555
2011-11-18（万方平台首次上网日期，不代表论文的发表时间）