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Solidification Behavior of Iron-Niobium and Iron-Carbon-Niobium alloys
| Title: | Solidification Behavior of Iron-Niobium and Iron-Carbon-Niobium alloys |
| Authors: | Kudoh, Masayuki Browse this author | | Tezuka, Masataka Browse this author | | Matsuura, Kiyotaka Browse this author →KAKEN DB |
| Keywords: | iron-niobium alloy | | iron-carbon-niobium alloy | | undercooling, delta/gamma transformation | | secondary dendrite arm spacing | | glass-encased method |
| Issue Date: | 2005 |
| Publisher: | Trans Tech Publications |
| Journal Title: | PRICM 5: Proceedings of the 5th Pacific Rim International Conference on Advanced Materials and Processing |
| Start Page: | 2567 |
| End Page: | 2570 |
| Abstract: | The undercooling and solidified structure of Fe-Nb binary alloys and Fe-0.1mass%C-Nb ternary alloys were investigated by changing Nb concentration from 0.5 to 6mass%. A glass-encased method was used for achieving high undercooling, in addition to a conventional solidification method. The specimen was furnace-cooled followed by quenching from 1723K or air-cooling from 1473K. As a result, the degree of undercooling in the Fe-Nb alloys solidified by the glass-encased method was higher than that in the specimen solidified by the conventional method, while that in the Fe-0.1mass%C-Nb alloy solidified by the glass-encased method was not so high. The solidified structure in all alloys that were quenched atγ formation temperature has dendritic morphology in spite of δ/γ transformation. The secondary arm spacing of the dendrite became fine with increase in niobium concentration. |
| Description: | Materials Science Forum, Volume 475-479 |
| Rights: | the original is available online at www.scientific.net |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/16874 |
| 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: 工藤 昌行
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