Atom probe tomography of carbides occurring in "carbide-free" bainitic steels

被引：6
|
作者：
Hofer, C. [1 ]
Winkelhofer, F. [2 ]
Krammerbauer, J. [2 ]
Clemens, H. [1 ]
Primig, S. [1 ]
机构：
[1] Univ Leoben, Dept Phys Met & Mat Testing, Franz Josef Str 18, A-8700 Leoben, Austria
[2] Voestalpine Stahl Linz GmbH, A-4020 Linz, Austria
来源：
MATERIALS TODAY-PROCEEDINGS | 2015年 / 2卷
关键词：
Carbide-free bainite; carbides; atom probe tomography (APT); SILICON STEEL; TRANSFORMATION;
D O I：
10.1016/j.matpr.2015.07.433
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
One conventional and two "carbide-free" bainitic steels, consisting of needle or plate shaped bainitic ferrite, retained austenite and possible carbides have been studied by atom probe tomography. These low C containing steels differed in the amounts of Si, Mn and Cr. In all steels carbides with a chemical composition corresponding to cementite were found, although e-carbide would be expected in high Si containing steels. Additionally, Ti-carbides were observed in the conventional bainitic steel. Si and Cr reduced the amount of carbides, but were ineffective in fully suppressing cementite formation. (C) 2015 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：925 / 928
页数：4
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