Effect of cooling rate on microstructure and mechanical properties of rapidly solidified Al-based bulk alloys
β Scribed by Longchao Zhuo; Shujie Pang; Hui Wang; Tao Zhang
- Book ID
- 116606594
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 823 KB
- Volume
- 504
- Category
- Article
- ISSN
- 0925-8388
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π SIMILAR VOLUMES
A fast-cooling technology using a copper mould cooled by a phase-transition medium was used to prepare cast aluminium-A356 alloy by solidification of the melt. The cooling rate achieved with this technique is in the order of 10 2 K/s. As-cast samples with a diameter of 10 mm were produced. The micro
AI-Hf alloys were produced by chill casting and gas atomization. The solid solubility of hafnium in aluminium was extended to 2 wt.% Hf in the sub 45/zm size powders. Precipitation of the L12-AI3Hf phase refined the chill cast grain size from 300 /zm to 5 /~m. The powders were consolidated by extrus