Tracking solute atoms during bainite reaction in a nanocrystalline steel

被引：25
作者：
Caballero, F. G. [1 ]
Miller, M. K. [2 ]
Garcia-Mateo, C. [1 ]
机构：
[1] Ctr Nacl Invest Met CENIM CSIC, Dept Met Phys, E-28040 Madrid, Spain
[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2010年 / 26卷 / 08期
关键词：
Steels; Bainite; Three-dimensional atom probe; LOW-ALLOY STEELS; INCOMPLETE TRANSFORMATION PHENOMENON; COMPOSITION PROPERTY APPROACH; LOW-TEMPERATURE BAINITE; NI-C MARTENSITES; CARBIDE PRECIPITATION; FE-C; SILICON STEELS; DESIGN; PROBE;
D O I：
10.1179/026708310X12635619987943
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The extremely slow transformation kinetics of a nanocrystalline bainitic steel makes this novel structure the perfect candidate to determine the carbon content of the bainitic ferrite away from any carbon enriched regions, such as dislocations and boundaries, as the bainite transformation progresses at extremely low temperatures. The purpose of this atom probe tomography study was to systematically track atom distributions during the bainite reaction in a nanocrystalline steel. The results will provide new experimental evidence on the explanation for the incomplete reaction phenomenon and the carbon supersaturation of the bainitic ferrite during transformation, subjects critically relevant to understanding the atomic mechanism controlling bainitic ferrite growth.
引用
收藏
页码：889 / 898
页数：10
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