Mobility of dislocations and grain boundaries controlled by the order degree in iron-based alloys

被引：1
|
作者：
Gargicevich, D. [1 ]
Lambri, O. A. [1 ]
Perez-Landazabal, J. I. [2 ,3 ]
Recarte, V. [2 ,3 ]
Bonifacich, F. G. [1 ]
Cuello, G. J. [4 ]
Sanchez Alarcos, V. [2 ]
机构：
[1] Univ Nacl Rosario, CONICET, Lab Mat, Escuela Ingn Elect,Ctr Tecnol & Invest Elect,Fac, RA-2000 Rosario, Santa Fe, Argentina
[2] Univ Publ Navarra, Dept Fis, Inst Adv Mat INAMAT, Pamplona 31006, Spain
[3] Univ Publ Navarra, Inst Adv Mat INAMAT, Pamplona 31006, Spain
[4] Inst Laue Langevin, F-38042 Grenoble 9, France
来源：
7TH MEETING OF THE SPANISH NEUTRON SCATTERING ASSOCIATION (SETN) | 2015年 / 663卷
关键词：
MECHANICAL SPECTROSCOPY; SI ALLOYS; CR;
D O I：
10.1088/1742-6596/663/1/012013
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Neutron diffraction and mechanical spectroscopy studies were performed in Fe-Al-Cr, Fe-Al-Si and Fe-Si alloys. Results show that in ordered alloys independently of the type of order, D0(3) or B2, the mobility of dislocations and grain boundaries is markedly reduced. It is revealed through small values both of damping and of the strength of the amplitude dependent damping (S). Moreover, the behaviour of S as a function of temperature is a suitable tool for determining the order changes as a function of temperature.
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页数：6
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