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Plastic Deformations in L10-Ordered Single Crystals with their c/a Ratios Less than Unity

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Abstract:

Compressive deformation of L10-ordered single crystals of FePd whose c/a ratio less than unity have been investigated from room temperature to 823 K. The results show that the critical resolved shear stress (CRSS) for octahedral glide of ordinary dislocations is smaller than that of super-lattice dislocations in all the temperature range investigated, that is the opposite sense to the case of Ti-56 mol% Al. The CRSS for ordinary dislocations virtually independent to the temperature. On the other hand, the CRSS for super dislocations exhibits a weak positive temperature dependence from room temperature up to 573 K and decreases in higher temperatures.

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Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

459-462

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.459

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Online since:

October 2007

Authors:

Katsushi Tanaka, Hiromitsu Ide, Yoshinori Sumi, Kyosuke Kishida, Haruyuki Inui

Keywords:

Deformation Behavior, Intermetallic, L10 Compounds, Yield Stress

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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