Extremely fine pearlite by continuous cooling transformation

被引：51
|
作者：
Wu, K. M. [1 ,2 ]
Bhadeshia, H. K. D. H. [1 ]
机构：
[1] Univ Cambridge, Cambridge CB2 3QZ, England
[2] Wuhan Univ Sci & Technol, Int Res Inst Steel Technol, Wuhan 430081, Peoples R China
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 01期
关键词：
Nanostructured pearlite; Continuous cooling transformation; Strong steel; Alloy design; LOW-TEMPERATURE BAINITE; EUTECTOID STEEL; AUSTENITE;
D O I：
10.1016/j.scriptamat.2012.03.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An extremely fine, fully pearlitic structure with an interlamellar spacing of 30-50 nm has been obtained during continuous cooling transformation at a rate as low as 0.1 degrees C s(-1), of the steel that is normally used to produce nanostructured bainite. The solutes cobalt and aluminium have been added to accelerate the rate of reaction and reduce the interlamellar spacing by increasing the free energy of transformation. The range of cooling rates over which the fully pearlitic state can be achieved is characterized. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：53 / 56
页数：4
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