J Mater Sci Technol ›› 1990, Vol. 6 ›› Issue (2): 103-105.

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Age Hardening in Rapidly Solidified Al-V-Zr Alloy

NING Yuantao LI Yongnian   

  • Received:1990-03-28 Revised:1990-03-28 Online:1990-03-28 Published:2009-10-10

Abstract: Rapidly solidified Al-3.9V-0.1 Zr alloy is a single sol- id solution.The metastable limited solid solubility of solute V in Al reaches 3.9 wt-% under about 10~6 K/s cooling rate.A strong age hardening response have been observed in this alloy.A large amount of dislocation lines and loops were observed in the alloy aged at 100-150℃: and an age peak occurs at 450℃,the hardness value in- creases by a factor of 2.The precipitate which is responsi- ble for age hardening is identified to be Al_V(Al).

Key words: AI-Zr-V alloy, age hardening, rapid solidification