Time-Temperature-Reverse Transformation (TTRT) Behaviors of a C-Mn and a Nb Microalloyed Steel after Dynamic Transformation above the Ae3

被引：3

作者：

Aranas, Clodualdo, Jr. ^{[1
]}

Rodrigues, Samuel F. ^{[1
]}

Shen, Yu-Jack ^{[1
]}

Zhang, Zhe ^{[1
]}

Jonas, John J. ^{[1
]}

机构：

[1] McGill Univ, Dept Mat Engn, 3610 Univ St, Montreal, PQ H3A 2B2, Canada

来源：

STEEL RESEARCH INTERNATIONAL | 2017年 / 88卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

dynamic transformation; ferrite retransformation; time-temperature-reverse transformation curves; FERRITE TRANSFORMATION; DEFORMED AUSTENITE; DEFORMATION;

D O I：

10.1002/srin.201700006

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The dynamic transformation (DT) of austenite to ferrite and the retransformation of the dynamically transformed ferrite back into the more stable austenite were studied at temperatures above the Ae(3). For this purpose, compression tests were carried out on a C-Mn and a Nb microalloyed steel over the temperature range 870-960 degrees C. The samples were deformed to a strain of 0.75 at a strain rate of 1s(-1) and held isothermally for times of 1-1000s to permit retransformation. The samples were water quenched after testing and the volume fractions of retransformed ferrite were measured to allow for the construction of TTRT (time-temperature-reverse transformation) curves. The present type of diagram can be combined with strain-temperature-transformation (STT) curves to model the occurrence of dynamic transformation and retransformation during thermomechanical processing.

引用

页数：7

共 18 条

[1] A metastable phase diagram for the dynamic transformation of austenite at temperatures above the Ae3 [J].

Aranas, Clodualdo, Jr. ;

Jung, In-Ho ;

Yue, Stephen ;

Rodrigues, Samuel F. ;

Jonas, John J. .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2016, 107 (10) :881-886

[2] Ferrite Formation above the Ae3 Temperature during the Torsion Simulation of Strip Rolling [J].

Aranas, Clodualdo, Jr. ;

Rodrigues, Samuel Filgueiras ;

Grewal, Rupanjit ;

Jonas, John Joseph .

ISIJ INTERNATIONAL, 2015, 55 (11) :2426-2434

[3] Effect of Interpass Time on the Dynamic Transformation of a Plain C-Mn and a Nb Microalloyed Steel [J].

Aranas, Clodualdo, Jr. ;

Wang, Tong ;

Jonas, John Joseph .

ISIJ INTERNATIONAL, 2015, 55 (03) :647-654

[4] Flow Softening-based Formation of Widmanstatten Ferrite in a 0.06%C Steel Deformed Above the Ae3 [J].

Aranas, Clodualdo, Jr. ;

Tuan Nguyen-Minh ;

Grewal, Rupanjit ;

Jonas, John Joseph .

ISIJ INTERNATIONAL, 2015, 55 (01) :300-307

[5] Effect of Mn and Si on the dynamic transformation of austenite above the Ae3 temperature [J].

Aranas, Clodualdo, Jr. ;

Jonas, John J. .

ACTA MATERIALIA, 2015, 82 :1-10

[6] Microstructural Evolution of a C-Mn Steel During Hot Compression Above the Ae3 [J].

Aranas, Clodualdo M. ;

Shen, Yu-Jack ;

Rodrigues, Samuel F. ;

Jonas, John J. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2016, 47A (09) :4357-4361

[7] FactSage thermochemical software and databases - recent developments [J].

Bale, C. W. ;

Belisle, E. ;

Chartrand, P. ;

Decterov, S. A. ;

Eriksson, G. ;

Hack, K. ;

Jung, I. -H. ;

Kang, Y. -B. ;

Melancon, J. ;

Pelton, A. D. ;

Robelin, C. ;

Petersen, S. .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2009, 33 (02) :295-311

[8] The Ferrite Transformation in Hot Deformed 0.036% Nb Austenite at Temperatures Above the Ae3 [J].

Basabe, Vladimir V. ;

Jonas, John J. .

ISIJ INTERNATIONAL, 2010, 50 (08) :1185-1192

[9] Ultrafine grained structure formation in steels using dynamic strain induced transformation processing [J].

Beladi, H. ;

Kelly, G. L. ;

Hodgson, P. D. .

INTERNATIONAL MATERIALS REVIEWS, 2007, 52 (01) :14-28

[10]

Chen Y, 2003, J IRON STEEL RES INT, V10, P46

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