Solubility of carbon in tetragonal ferrite in equilibrium with austenite

被引：74

作者：

Jang, Jae Hoon ^{[2
]}

Bhadeshia, H. K. D. H. ^{[1
,2
]}

Suh, Dong-Woo ^{[2
]}

机构：

[1] Univ Cambridge, Cambridge CB2 1TN, England

[2] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang 790784, South Korea

来源：

SCRIPTA MATERIALIA | 2013年 / 68卷 / 3-4期

基金：

新加坡国家研究基金会;

关键词：

Solubility of carbon; Martensite; Bainite; Quench and partitioning; BAINITE TRANSFORMATION; ATOM-PROBE; SURFACES; ALLOYS; METALS; STEELS;

D O I：

10.1016/j.scriptamat.2012.10.017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

There are precise observations which indicate the reluctance of excess carbon within bainite or martensite to partition into adjacent austenite in spite of prolonged heat treatment at temperatures where carbon is mobile. To explain this, we report the first calculations of the solubility of carbon in tetragonal ferrite that is in equilibrium with austenite. It is found that the solubility is dramatically increased relative to the cubic form of ferrite, and the implications of this are discussed briefly. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：195 / 198

页数：4

共 27 条

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AARONSON HI, 1966, T METALL SOC AIME, V236, P753

[2] First-principles prediction of partitioning of alloying elements between cementite and ferrite [J].