Strain-induced transformation in a low carbon microalloyed steel during hot compression testing

被引：39

作者：

Eghbali, B ^{[1
]}

Abdollah-zadeh, A ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Mat Engn, Tehran, Iran

来源：

SCRIPTA MATERIALIA | 2006年 / 54卷 / 06期

关键词：

microalloyed steel; ferrite grain refinement; strain-induced transformation; EBSD; ferritic steel;

D O I：

10.1016/j.scriptamat.2005.11.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Strain-induced transformation (SIT) of austenite to ferrite during hot compression testing of a low carbon microalloyed steel is investigated by using optical microscopy and electron back-scattered diffraction. Microstructural observation indicates that ultrafine ferrite grains of similar to 1.5 mu m can be obtained by deformation at 845 degrees C, just above Ar-3, with a strain rate of 0.1 s(-1) due to the occurrence of SIT of austenite to ferrite. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1205 / 1209

页数：5

共 22 条

[1] Development of an ultrafine grained ferrite in a low C-Mn and Nb-Ti microalloyed steels after warm torsion and intercritical annealing [J].

Azevedo, G ;

Barbosa, R ;

Pereloma, EV ;

Santos, DB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 402 (1-2) :98-108

[2] The evolution of ultrafine ferrite formation through dynamic strain-induced transformation [J].

Beladi, H ;

Kelly, GL ;

Shokouhi, A ;

Hodgson, PD .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 371 (1-2) :343-352

[3] Formation of ultrafine ferrite by strain-induced dynamic transformation in plain low carbon steel [J].

Choi, JK ;

Seo, BH ;

Lee, JS ;

Um, KK ;

Choo, WY .

ISIJ INTERNATIONAL, 2003, 43 (05) :746-754

[4] The influence of thermomechanical parameters in ferrite grain refinement in a low carbon Nb-microalloyed steel [J].

Eghbali, B ;

Abdollah-Zadeh, A .

SCRIPTA MATERIALIA, 2005, 53 (01) :41-45

[5]

EGHBALI B, 2005, J MATER SCI TECHNOL, V21, P6

[6] Processing of ultrafine ferrite steels [J].

Han, BQ ;

Yue, S .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 136 (1-3) :100-104

[7] Ultrafine ferrite in low carbon steel [J].

Hodgson, PD ;

Hickson, MR ;

Gibbs, RK .

SCRIPTA MATERIALIA, 1999, 40 (10) :1179-1184

[8] The production and mechanical properties of ultrafine ferrite [J].

Hodgson, PD ;

Hickson, MR ;

Gibbs, RK .

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON MICROALLOYING IN STEELS, 1998, 284-2 :63-72

[9] A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment [J].

Huang, CJ ;

Li, DZ ;

Li, YY .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 352 (1-2) :136-143

[10] The production of ultrafine ferrite during hot torsion testing of a 0.11 Wt Pct C steel [J].

Hurley, PJ ;

Muddle, BC ;

Hodgson, PD .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (09) :2985-2993

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