Acceleration of the super bainite transformation through a coarse austenite grain size
Acceleration of the super bainite transformation through a coarse austenite grain size
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DOI：
10.1016/j.matlet.2014.02.051
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发表时间：
2014-05-01
影响因子：
3
通讯作者：
Wu, K. M.
中科院分区：
文献类型：
--
作者：
Hu, F.;Hodgson, P. D.;Wu, K. M.
研究了奥氏体晶粒尺寸对高碳超贝氏体钢等温贝氏体转变动力学的影响。实验结果表明，粗大的奥氏体晶粒尺寸加速了超级贝氏体的转变。这是因为虽然粗奥氏体晶粒提供较少的形核位点，但有利于贝氏体层生长。同时，存在一个临界奥氏体晶粒尺寸，低于该晶粒尺寸时存在明显的晶粒尺寸效应，高于该晶粒尺寸效应则不明显。 (C) 2014 Elsevier B.V. 保留所有权利。
The effect of austenite grain size on the kinetics of the isothermal bainitic transformation in a highcarbon super-bainitic steel was investigated. Experimental results showed that the transformation of super bainite was accelerated by a coarse austenite grain size. This is because while coarse austenite grains provide less nucleation sites, it is beneficial for bainite sheaf growth. Meanwhile, there is a critical austenite grain size below which there is a distinct grain size effect and above which it is not evident. (C) 2014 Elsevier B.V. All rights reserved.