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Experimental Verification of a Critical Condition for the Formation of As-Cast Coarse Columnar Austenite Grain Structure in a Hyperperitectic Carbon Steel
| Title: | Experimental Verification of a Critical Condition for the Formation of As-Cast Coarse Columnar Austenite Grain Structure in a Hyperperitectic Carbon Steel |
| Authors: | Ohno, Munekazu Browse this author →KAKEN DB | | Maruyama, Masato Browse this author | | Matsuura, Kiyotaka Browse this author |
| Issue Date: | Nov-2015 |
| Publisher: | Springer |
| Journal Title: | Metallurgical and materials transactions A-physical metallurgy and materials science |
| Volume: | 46A |
| Issue: | 11 |
| Start Page: | 5240 |
| End Page: | 5247 |
| Publisher DOI: | 10.1007/s11661-015-3115-x |
| Abstract: | 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 |
| Rights: | The final publication is available at Springer via http://dx.doi.org/10.1007/s11661-015-3115-x |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/63399 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 大野 宗一
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