Single-crystal elastic constants of gamma-TiAl

被引：103

作者：

Tanaka, K

Ichitsubo, T

Inui, H

Yamaguchi, M

Koiwa, M

机构：

[1] Department of Materials Science and Engineering, Kyoto University, Kyoto, 606-01, Sakyo-ku

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1996年 / 73卷 / 02期

关键词：

D O I：

10.1080/095008396181019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The elastic constants of single-crystal gamma-TiAl (Ti-56O at.% Al) have been measured from 4 to 298 K. The values at 298 K agree with those recently reported by He, Schwarz, Migliori and Whang. c(12) and c(13) are virtually temperature independent while the other elastic constants normally decrease with increasing temperature. The values extrapolated to OK are c(11) = 187GPa, c(33) = 182GPa, c(12) = 74.8 GPa, c(13) = 74.8 GPa, c(44) = 109 GPa and c(66) = 81.2 GPa. The elastic anisotropy factors A(1) = 2c(66)/(c(11)-c(12)), A(2) = 4c(44)/(c(11) + c(33)-2c(13)) and c(44)/c(66) at OK are virtually equal to those at room temperature.

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页码：71 / 78

页数：8

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