Thermal stability of ultra fine-grained steel containing dispersed oxides

被引:14
作者
Belyakov, A [1 ]
Sakai, Y [1 ]
Hara, T [1 ]
Kimura, Y [1 ]
Tsuzaki, K [1 ]
机构
[1] Natl Inst Mat Sci, Frontier Res Ctr Struct Mat, Tsukuba, Ibaraki 3050047, Japan
基金
日本科学技术振兴机构;
关键词
mechanical alloying; TEM; Fe-Fe3O4; steel; grain growth; recrystallisation and recovery;
D O I
10.1016/S1359-6462(01)01152-6
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Annealing behaviour of an ultra fine-grained steel was studied at temperatures of T = 600-900 degreesC. At T less than or equal to 800 degreesC, recovery develops more readily at grain boundaries as compared to grain interiors, leading to a fast release of lattice distortions associated with the non-equilibrium state of grain boundaries. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1213 / 1219
页数:7
相关论文
共 14 条
[1]   Strain-induced submicrocrystalline grains developed in austenitic stainless steel under severe warm deformation [J].
Belyakov, A ;
Sakai, T ;
Miura, H ;
Kaibyshev, R .
PHILOSOPHICAL MAGAZINE LETTERS, 2000, 80 (11) :711-718
[2]   Substructures and internal stresses developed under warm severe deformation of austenitic stainless steel [J].
Belyakov, A ;
Sakai, T ;
Miura, H ;
Kaibyshev, R .
SCRIPTA MATERIALIA, 2000, 42 (04) :319-325
[3]   Effect of dispersed particles on microstructure evolved in iron under mechanical milling followed by consolidating rolling [J].
Belyakov, A ;
Sakai, Y ;
Hara, T ;
Kimura, Y ;
Tsuzaki, K .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (07) :1769-1776
[4]   Factors influencing the flow and hardness of materials with ultrafine grain sizes [J].
Furukawa, M ;
Horita, Z ;
Nemoto, M ;
Valiev, RZ ;
Langdon, TG .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1998, 78 (01) :203-215
[5]   ON THE STRUCTURE AND STRENGTH OF ULTRAFINE-GRAINED COPPER PRODUCED BY SEVERE PLASTIC-DEFORMATION [J].
GERTSMAN, VY ;
BIRRINGER, R ;
VALIEV, RZ ;
GLEITER, H .
SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (02) :229-234
[6]   NANOCRYSTALLINE MATERIALS [J].
BIRRINGER, R .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 :33-43
[7]   A unified theory of recovery, recrystallization and grain growth, based on the stability and growth of cellular microstructures .1. The basic model [J].
Humphreys, FJ .
ACTA MATERIALIA, 1997, 45 (10) :4231-4240
[8]   Developing stable fine-grain microstructures by large strain deformation [J].
Humphreys, FJ ;
Prangnell, PB ;
Bowen, JR ;
Gholinia, A ;
Harris, C .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1999, 357 (1756) :1663-1680
[9]   Ultra grain refining and decomposition of oxide during super-heavy deformation in oxide dispersion ferritic stainless steel powder [J].
Kimura, Y ;
Takaki, S ;
Suejima, S ;
Uemori, R ;
Tamehiro, H .
ISIJ INTERNATIONAL, 1999, 39 (02) :176-182
[10]  
OHTAGUCHI M, 1999, RECRYSTALLIZATION RE, P495