Experimental Verification of a Critical Condition for the Formation of As-Cast Coarse Columnar Austenite Grain Structure in a Hyperperitectic Carbon Steel

Ohno, Munekazu; Maruyama, Masato; Matsuura, Kiyotaka

Metallurgical and materials transactions A-physical metallurgy and materials science, 2015, 46A(11), 5240-5247

Permalink : https://hdl.handle.net/2115/63399

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アクセス権
open access
URI
https://hdl.handle.net/2115/63399
タイトル
Experimental Verification of a Critical Condition for the Formation of As-Cast Coarse Columnar Austenite Grain Structure in a Hyperperitectic Carbon Steel
著者
Ohno, Munekazu ; Maruyama, Masato ; Matsuura, Kiyotaka
e-Rad_Researcher
30431331
著者名
Ohno, Munekazu
著者名
Maruyama, Masato
著者名
Matsuura, Kiyotaka
言語
英語
発行日
2015-11
出版者
Springer
収録物名
Metallurgical and materials transactions A-physical metallurgy and materials science
巻(号)
46A(11)
ページ
5240-5247
抄録
Experimental verification of a critical condition for the formation of coarse columnar gamma grain (CCG) structure in as-cast hyperperitectic carbon steels, which was put forward based on theories of grain growth and phase-field simulations in early studies, is carried out by means of a Bridgman-type directional solidification experiment. The occurrence of the discontinuous and continuous grain growth processes and the resulting formation of CCG and equiaxed gamma grain structures, respectively, are demonstrated. Importantly, these changes of the as-cast microstructures and the grain growth modes are in excellent agreement with the previously proposed critical condition of the CCG formation. (C) The Minerals, Metals & Materials Society and ASM International 2015
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
The final publication is available at Springer via http://dx.doi.org/10.1007/s11661-015-3115-x
PISSN
1073-5623
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s11661-015-3115-x