Annealing behavior of submicrocrystalline oxide-bearing iron produced by mechanical alloying

被引：15

作者：

Belyakov, A ^{[1
]}

Sakai, Y ^{[1
]}

Hara, T ^{[1
]}

Kimura, Y ^{[1
]}

Tsuzaki, K ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Steel Res Ctr, Tsukuba, Ibaraki 3050047, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2003年 / 34卷 / 01期

关键词：

D O I：

10.1007/s11661-003-0214-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural changes upon annealing of an ultrafine-grained iron containing dispersed oxides were studied. The starting material was subjected to mechanical milling followed by consolidating bar rolling. The fine-grained microstructures were essentially stable against discontinuous grain growth and/or primary recrystallization during annealing at temperatures up to 800 degreesC, where the specimens maintain a very fine ferrite grain size. The annealing behavior is mainly characterized by normal grain growth accompanied by recovery. The grain-growth kinetics correlates with the oxide coarsening. Both the grain growth and the oxide coarsening can be enhanced by an increase in the temperature. The static restoration/recrystallization processes operating in the ultrafine-grained matrices, as well as the effect of dispersed oxides particles, are discussed in some detail.

引用

页码：131 / 138

页数：8

共 38 条

[1] COARSENING OF GRAIN-BOUNDARY PRECIPITATES [J].

ARDELL, AJ .

ACTA METALLURGICA, 1972, 20 (04) :601-&

[2] DETERMINATION OF DIFFUSION CONSTANTS OF OXYGEN IN NICKEL AND ALPHA-IRON BY AN INTERNAL OXIDATION METHOD [J].

BARLOW, R ;

GRUNDY, PJ .

JOURNAL OF MATERIALS SCIENCE, 1969, 4 (09) :797-&

[3] EFFECT OF RECRYSTALLIZED GRAIN SIZE ON GRAIN GROWTH [J].

BECK, PA .

JOURNAL OF APPLIED PHYSICS, 1948, 19 (05) :507-509

[4]

BECK PA, 1947, J APPL PHYS, V18, P1028, DOI 10.1063/1.1697575

[5]

BECK PA, 1948, T AM I MIN MET ENG, V175, P372

[6] 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

[7] Thermal stability of ultra fine-grained steel containing dispersed oxides [J].

Belyakov, A ;

Sakai, Y ;

Hara, T ;

Kimura, Y ;

Tsuzaki, K .

SCRIPTA MATERIALIA, 2001, 45 (10) :1213-1219

[8] 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

[9] GRAIN GROWTH IN ALPHA-BRASS [J].

BURKE, JE .

JOURNAL OF APPLIED PHYSICS, 1947, 18 (11) :1028-1028

[10] 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

← 1 2 3 4 →