The effect of prior cold deformation and of B2 and D03 ordering on the recrystallisation kinetics of Fe-25at%Al

被引：4
作者：
Blackford, JR
Höchrainer, P
Buckley, RA
Jones, H
Sellars, CM
机构：
[1] Univ Edinburgh, Sch Engn & Elect, Ctr Mat Sci & Engn, Edinburgh EH9 3JL, Midlothian, Scotland
[2] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
来源：
SCRIPTA MATERIALIA | 2004年 / 51卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
recrystallisation; ordering; iron aluminides;
D O I：
10.1016/j.scriptamat.2004.04.008
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Increased prior cold work accelerates the recrystallisation kinetics of B2 ordered Fe-25.2at%Al at 600 and 700 degreesC with nucleation occurring heterogeneously at grain boundaries leading to an Avrami exponent of 0.5 and an activation energy of similar to290 kJ/mol. Recrystallisation in the D0(3) ordered state at 500 degreesC is greatly retarded compared with the B2 ordered state. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：79 / 82
页数：4
相关论文
共 27 条
[1]  
[Anonymous], P 7 RIS S RIS DENM
[2]   Recovery, recrystallization and grain growth in ordered alloys [J].
Baker, I .
INTERMETALLICS, 2000, 8 (9-11) :1183-1196
[3]   LARGE-STRAIN DEFORMATION OF NI3AL+B .1. MICROSTRUCTURE AND TEXTURE EVOLUTION DURING ROLLING [J].
BALL, J ;
GOTTSTEIN, G .
INTERMETALLICS, 1993, 1 (03) :171-185
[4]   Production of iron aluminides by strip casting followed by cold rolling at room temperature [J].
Blackford, JR ;
Buckley, RA ;
Jones, H ;
Sellars, CM .
SCRIPTA MATERIALIA, 1996, 34 (10) :1595-1600
[5]  
Blackford JR, 1998, MATER SCI TECH SER, V14, P1139, DOI 10.1179/026708398790708934
[6]  
DAVIES RG, 1966, T METALL SOC AIME, V236, P1605
[7]   Diffusion in intermetallic phases of the Fe-Al system [J].
Eggersmann, M ;
Mehrer, H .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2000, 80 (05) :1219-1244
[8]   RECRYSTALLIZATION AND TEXTURE IN BORON-DOPED NI3AL [J].
GOTTSTEIN, G ;
NAGPAL, P ;
KIM, W .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 108 :165-179
[9]  
Higginson R.L., 2003, Worked Examples in Quantitative Metallography
[10]  
HIRANO K, 1968, NIPPON KINZOKU GAKKA, V32, P516
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