Mechanical spectroscopy in Fe-Al-Si alloys at elevated temperatures

被引：17
|
作者：
Lambri, O. A. [1 ,2 ]
Perez-Landazabal, J. I. [3 ]
Cuello, G. J. [4 ]
Cano, J. A. [1 ]
Recarte, V. [3 ]
Siemers, C. [5 ]
Golovin, I. S. [6 ]
机构：
[1] Univ Nacl Rosario, Fac Ciencias Exactas Ingn & Agrimensura, Mat Lab, RA-2000 Rosario, Argentina
[2] Consejo Nacl Invest Cient & Tecn, Inst Fis Rosario, RA-1033 Buenos Aires, DF, Argentina
[3] Univ Publ Navarra, Dept Fis, Pamplona 31006, Spain
[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France
[5] Tech Univ Carolo Wilhelmina Braunschweig, Inst Mat, D-38106 Braunschweig, Germany
[6] Tula State Univ, Fac Nat Sci, Phys Met & Mat Sci Dept, Tula 300600, Russia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 468卷 / 1-2期
关键词：
Magnetically ordered materials; Mechanical properties; Order-disorder effects; Phase transitions; Neutron diffraction; INTERNAL-FRICTION; IRON; ANELASTICITY;
D O I：
10.1016/j.jallcom.2007.12.071
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The mechanical spectroscopy response in Fe-25 at.% (Al + Si) and Fe-15 at.% (Al + Si) has been studied in the temperature interval between 800 and 1200 K. The solute grain boundary relaxation of aluminium and silicon was strongly dependent of the degree of order in the sample. A decrease in the order degree allows the development of the solute peak at around 1000 K during the cooling front 1200 K. Nevertheless, if the order degree is not decreased, the grain boundaries remain locked and consequently the relaxation peak does not appear. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：96 / 102
页数：7
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