Anelastic relaxation and structure of ternary Fe-Al-Me alloys with Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr

被引:19
作者
Golovin, I. S.
Strahl, A.
Neuhaeuser, H.
机构
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Mat, D-3300 Braunschweig, Germany
[2] Tech Univ Carolo Wilhelmina Braunschweig, Inst Condensed Matter Phys, D-3300 Braunschweig, Germany
关键词
Fe-Al alloys; ordering; mechanical spectroscopy; internal friction; anelastic relaxation;
D O I
10.3139/146.101341
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The anelasticity of binary Fe-Al and ternary Fe-Al-Me (Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr) alloys has been studied by mechanical spectroscopy in the Hz and kHz ranges. Relaxation peaks due to point defects - Snoek effect (S) with carbon interstitial jumps, carbon-vacancy complexes (X peak), Zener effect (Z), dislocations (D), and grain boundaries (GB) - are observed and their changes with addition of the third element are used to corroborate the respective proposed relaxation mechanisms, taking account of the changes of structure and order in the alloys which contain up to 5Co, 25Cr, 25Ge, 5Mn, 0.3Nb, 25Si, 6Ta, 4Ti, and 15Zr (all in at.%), respectively. In addition, some data of ordering temperatures, Curie temperatures, and hardness are provided for several alloys.
引用
收藏
页码:1078 / 1092
页数:15
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