ELASTIC-CONSTANTS OF SINGLE-CRYSTAL GAMMA-TIAL

被引：157

作者：

HE, Y ^{[1
]}

SCHWARZ, RB ^{[1
]}

MIGLIORI, A ^{[1
]}

WHANG, SH ^{[1
]}

机构：

[1] POLYTECH INST NEW YORK,DEPT MAT SCI & ENGN,SIX METROTECH CTR,BROOKLYN,NY 11201

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 05期

关键词：

D O I：

10.1557/JMR.1995.1187

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The six independent second-order elastic stiffness coefficients of a Ti44Al56 Single crystal (L1(0) structure) have been measured at room temperature for the first time using a resonant ultrasonic spectroscopy (RUS) technique. These data were used to calculate the orientation dependence of Young's modulus and the shear modulus. Young's modulus is found to reach a maximum near a [111] direction, close to the normal to the most densely packed planes. The elastic moduli and Poisson's ratio for polycrystalline materials, calculated by the averaging scheme proposed by Hill, are in good agreement with experimental data and theoretical calculations.

引用

页码：1187 / 1195

页数：9

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