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Mechanical alloying of Al—Ti powder mixtures and their subsequent consolidation

Published online by Cambridge University Press:  31 January 2011

T. Itsukaichi ,
K. Masuyama ,
M. Umemoto ,
I. Okane  and
J.G. CabañTas-Moreno
T. Itsukaichi
Affiliation:
Graduate School, Toyohashi University of Technology, Tempaku-cho, Toyohashi, AICHI, 441 Japan
K. Masuyama
Affiliation:
Toyama National College of Technology, Hongoh-machi, Toyama, TOYAMA, 939 Japan
M. Umemoto
Affiliation:
Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, AICHI, 441 Japan
I. Okane
Affiliation:
Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, AICHI, 441 Japan
J.G. CabañTas-Moreno
Affiliation:
Production Systems Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, AICHI, 441 Japan
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Abstract

Mechanically alloyed mixtures of elemental Al and Ti powders have been characterized in the as-milled condition, as well as after hot consolidation. Ball-milling in an argon atmosphere first induces alloying of the elements, followed by the formation of a certain amount of an amorphous-like phase. This amount increases as the equiatomic composition is approached. However, milling in nonsealed mills usually leads to the production of some form of titanium nitride, particularly in Ti-rich mixtures. In the consolidated products obtained from long-milled powders, intermetallic compounds were found to be the predominant phases. The existence of an amorphous phase in the as-milled powders considerably facilitates their hot consolidation.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 8 , August 1993 , pp. 1817 - 1828
Copyright
Copyright © Materials Research Society 1993

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