Dynamic recrystallization in ultra fine-grained 304 stainless steel

被引：77

作者：

Belyakov, A ^{[1
]}

Miura, H ^{[1
]}

Sakai, T ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Engn & Intelligent Syst, Tokyo 1828585, Japan

来源：

SCRIPTA MATERIALIA | 2000年 / 43卷 / 01期

关键词：

hot pressing; stress-strain relationship; austenitic steel; recrystallization and recovery; ultra fine grains;

D O I：

10.1016/S1359-6462(00)00373-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hot deformation and microstructure evolution for a 304 type stainless steel having an initial submicrocrystalline grain structure produced by multiple warm deformation were studied in uniaxial compression at 1073 K under strain rates of 10-4 to approximately 10-2 s-1. The main distinctive features are: hot deformation can be characterized by significantly reduced steady state flow stresses and its high strain rate sensitivity; dynamic recrystallization rapidly develops in the fine-grained steel resulting in smaller grain size evolved at high strains; and improved grain boundary sliding taking place in the ultra fine-grained material can play an important role in the deformation behavior as well as in the structure evolution.

引用

页码：21 / 26

页数：6

共 12 条

[1]

[Anonymous], 1992, SUPERPLASTICITY ALLO

[2]

Ashby M.F., 1982, DEFORMATION MECH MAP

[3] Dynamic recrystallization under warm deformation of a 304 type austenitic stainless steel [J].

Belyakov, A ;

Miura, H ;

Sakai, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 255 (1-2) :139-147

[4] Grain refinement under multiple warm deformation in 304 type austenitic stainless steel [J].

Belyakov, A ;

Sakai, T ;

Miura, H ;

Kaibyshev, R .

ISIJ INTERNATIONAL, 1999, 39 (06) :592-599

[5]

McQueen H., 1975, Plastic Deformation of Materials. Treatise on Material Science and technology, V6, P393, DOI [10.1016/b978-0-12-341806-7.50014-3, DOI 10.1016/B978-0-12-341806-7.50014-3]

[6]

RYAN ND, 1990, CAN METALL QUART, V29, P147, DOI 10.1179/000844390795576058

[7] OVERVIEW NO-35 - DYNAMIC RECRYSTALLIZATION - MECHANICAL AND MICROSTRUCTURAL CONSIDERATIONS [J].

SAKAI, T ;

JONAS, JJ .

ACTA METALLURGICA, 1984, 32 (02) :189-209

[8]

Sakai T, 1996, HOT WORKABILITY OF STEELS & LIGHT ALLOYS-COMPOSITES, P161

[9] AN INVESTIGATION OF CREEP-BEHAVIOR OF A LOW-CARBON 18CR-12NI (304L TYPE) STAINLESS-STEEL AT 873-1173-K [J].

SUSTEK, V ;

PAHUTOVA, M ;

CADEK, J .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 177 (1-2) :75-81

[10] Bulk nanostructured materials from severe plastic deformation [J].

Valiev, RZ ;

Islamgaliev, RK ;

Alexandrov, IV .

PROGRESS IN MATERIALS SCIENCE, 2000, 45 (02) :103-189

← 1 2 →