Investigation on the Microstructure and High Temperature Mechanical Properties of Al3Ti-Mo3Al Two-Phase Alloys

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Investigation on the crystallographic orientation relationships among D022-Al3Ti, A15-Mo3Al and high temperature bcc phase consisting of an Al-Mo-Ti ternary alloy with an equi-axed two-phase structure was conducted by FESEM/EBSD analysis. The grains of intermetallic phases have certain crystallographic orientations each other, while the crystallographic orientation distributions become random after a high temperature deformation. This strongly suggests the grain boundary sliding and grain rotating govern the high temperature deformation, which is consistent with the fact that the strain-rate sensitivity m is 0.3 or higher during a steady-state compressive deformation.

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Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

837-840

DOI:

10.4028/www.scientific.net/MSF.475-479.837

Citation:

S. Miura et al., "Investigation on the Microstructure and High Temperature Mechanical Properties of Al3Ti-Mo3Al Two-Phase Alloys", Materials Science Forum, Vols. 475-479, pp. 837-840, 2005

Online since:

January 2005

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$35.00

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