In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 988 ( 2014-7), p. 56-61
Abstract:
The effect of the high-energy synthesis of Al-Ti composite powders in a planetary mill on the as milled and heat treated structures was investigated with XRD and SEM. The results indicate that with the increase of milling time, the intensities of diffraction peaks corresponding to Al and Ti decrease and broaden gradually and the amount of low intensity lines decreases continuously. There is no new intermetallic compound in the Al-Ti mixed powders even after milling 200 h. The increase of rotation speed has significant influences on the Al-Ti composite powders, and milling 50h with rotation speed of 400 rpm has a same effectiveness with milling 200 h with rotation speed of 300 rpm. The diffraction peaks of Al and Ti both disappear in the Al-Ti composite powders milling 50h with a rotation speed of 300 rpm after thermally insulated at 610°C for 2h, indicating the formation of Al 3 Ti tetragonal phases. The higher the milling energy, the lower the reaction temperature of Al 3 Ti formation is.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.988
DOI:
10.4028/www.scientific.net/AMR.988.56
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2014
detail.hit.zdb_id:
2265002-7
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