Estimation of the solubility limit of Cr in Fe at 300 °C from small-angle neutron scattering in neutron-irradiated Fe-Cr alloys

被引：58
作者：
Bergner, F. [1 ]
Ulbricht, A. [1 ]
Heintze, C. [1 ]
机构：
[1] Forschungszentrum Dresden Rossendorf, Inst Safety Res, D-01314 Dresden, Germany
来源：
SCRIPTA MATERIALIA | 2009年 / 61卷 / 11期
关键词：
Small-angle neutron scattering (SANS); Fe-Cr alloys; Phase diagram; SYSTEM;
D O I：
10.1016/j.scriptamat.2009.08.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The solubility limit of Cr in Fe (alpha-Fe-Cr) at low temperatures is a matter of debate. We report a direct estimation of the solubility limit at 300 degrees C from small-angle neutron scattering (SANS) data obtained for neutron-irradiated Fe-Cr alloys. The SANS results indicate that the equilibrium concentration of alpha' was reached via irradiation-enhanced diffusion. The solubility limit was estimated using an iterative approach based on the SANS invariant and the lever rule of phase equilibrium. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1060 / 1063
页数：4
相关论文
共 19 条
[1]   THERMODYNAMIC PROPERTIES OF THE CR-FE SYSTEM [J].
ANDERSSON, JO ;
SUNDMAN, B .
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1987, 11 (01) :83-92
[2]  
[Anonymous], 1982, Small angle x-ray scattering, DOI DOI 10.1002/ACTP.1985.010360520
[3]   User-friendly software for SANS data reduction [J].
Biemann, P ;
Haese-Seiller, M ;
Staron, P .
PHYSICA B, 2000, 276 :156-157
[4]   On the α-α′ miscibility gap of Fe-Cr alloys [J].
Bonny, G. ;
Terentyev, D. ;
Malerba, L. .
SCRIPTA MATERIALIA, 2008, 59 (11) :1193-1196
[5]   Microstructural investigation, using polarized neutron scattering, of a martensitic steel for fusion reactors [J].
Coppola, R ;
Kampmann, R ;
Magnani, M ;
Staron, P .
ACTA MATERIALIA, 1998, 46 (15) :5447-5456
[6]  
Filippova NP, 2000, PHYS MET METALLOGR+, V90, P145
[7]   DETERMINATION OF PARTICLE-SIZE DISTRIBUTION-FUNCTIONS FROM SMALL-ANGLE SCATTERING DATA BY MEANS OF THE INDIRECT TRANSFORMATION METHOD [J].
GLATTER, O .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1980, 13 (FEB) :7-11
[8]   Electronic structure and effective chemical and magnetic exchange interactions in bcc Fe-Cr alloys [J].
Korzhavyi, P. A. ;
Ruban, A. V. ;
Odqvist, J. ;
Nilsson, J. -O. ;
Johansson, B. .
PHYSICAL REVIEW B, 2009, 79 (05)
[9]   Monte Carlo study of thermodynamic properties and clustering in the bcc Fe-Cr system [J].
Lavrentiev, M. Yu. ;
Drautz, R. ;
Nguyen-Manh, D. ;
Klaver, T. P. C. ;
Dudarev, S. L. .
PHYSICAL REVIEW B, 2007, 75 (01)
[10]   Magnetic cluster expansion simulations of FeCr alloys [J].
Lavrentiev, M. Yu. ;
Dudarev, S. L. ;
Nguyen-Manh, D. .
JOURNAL OF NUCLEAR MATERIALS, 2009, 386-88 :22-25
12