Zener relaxation in ordered and disordered Fe-(22-28%)Al alloys

被引：6

作者：

Golovin, I. S.

Riviere, A.

机构：

[1] Tech Univ Braunschweig, Inst Mat, D-38106 Braunschweig, Germany

[2] CNR, UMR 6617, LMPM, ENSMA, F-86961 Futuroscope, France

[3] Tula State Univ, Phys Met & Mat Sci Dept, Taejon 300600, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 442卷 / 1-2期

关键词：

ordered alloys; internal friction; Zener relaxation;

D O I：

10.1016/j.msea.2006.04.131

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Zener relaxation in three Fe-Al alloys with 22, 26 and 28 at.% Al has been studied by isothermal measurements of elastic-energy-dissipation as a function of vibrating frequency in the range from 10(-4) to 10(2) Hz. The activation energy of the Zener relaxation has been determined as follows (in kJ/mol): 238 in Fe-22Al of the disordered bee (A2) structure, 270 in Fe-22Al of the D0(3) + A2, two phase structure, 235 in Fe-26Al of the B2 ordered structure, 286 in Fe-26Al of the D0(3) ordered structure, and 276 in Fe-28Al-3Cr at temperature close to the D0(3) <-> B2 transition. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：86 / 91

页数：6

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