Microstructure and mechanical properties of rapidly solidified Al-Cr alloys
β Scribed by Guofa Mi; Yalin Mo; Kuangfei Wang
- Book ID
- 107403850
- Publisher
- Wuhan University of Technology
- Year
- 2009
- Tongue
- English
- Weight
- 618 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1000-2413
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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
The microstructure of the A1-Mn-Cr alloys (AI-5Mn-2.5Cr, A1-5Mn-4Cr and A1-5Mn-6Cr), which were produced by ultrasonic gas atomization and hot extrusion, has been characterized by a combination of differential scanning calorimetry, microhardness measurement, X-ray diffraction, and analytical transmi