Formation of Widmanstatten ferrite at very high temperatures in the austenite phase field

被引：54

作者：

Grewal, Rupanjit ^{[1
]}

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

Chadha, Kanwal ^{[2
]}

Shahriari, Davood ^{[2
]}

Jahazi, Mohammad ^{[2
]}

Jonas, John J. ^{[1
]}

机构：

[1] McGill Univ, Mat Engn, 3610 Univ St, Montreal, PQ H3A 0C5, Canada

[2] Ecole Technol Super, Dept Genie Mecan, 1100 Rue Notre Dame Ouest, Montreal, PQ H3C 1K3, Canada

来源：

ACTA MATERIALIA | 2016年 / 109卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Thermomechanical processing; Dynamic transformation; Widmanstatten ferrite; DYNAMIC TRANSFORMATION; DEFORMED AUSTENITE; CARBON STEEL; DEFORMATION; SIMULATION; KINETICS; EVOLUTION;

D O I：

10.1016/j.actamat.2016.02.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Compression tests were carried out on a 0.06wt%C-0.3wt%Mn-0.01wt%Si steel at temperatures high in the austenite phase field. Eight deformation temperatures were selected in the range from 1000 to 1350 degrees C at 50 degrees C intervals. The quenched samples were examined using optical microscopy and EBSD techniques. It was observed that dynamic transformation took place and that the volume fraction of transformed ferrite first decreased with temperature (up to 1050 degrees C) and then increased as the delta ferrite temperature domain was approached. The EBSD results revealed the presence of Widmanstatten ferrite plates under all testing conditions, right up to 1350 degrees C. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：23 / 31

页数：9

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