| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2013-10-21 |
| タイトル |
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|
タイトル |
Microstructure and Retained Austenite Characteristics of Ultra High-strength TRIP-aided Martensitic Steels |
| 言語 |
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|
言語 |
eng |
| DOI |
|
|
|
関連識別子 |
https://doi.org/10.2355/isijinternational.52.1124 |
|
|
関連名称 |
10.2355/isijinternational.52.1124 |
| キーワード |
|
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主題 |
ultra high-strength steel, TRIP-aided steel, retained austenite, microstructure, martensite, partitioning |
| 資源タイプ |
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|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 著者 |
Kobayashi, Junya
Song, Sung-Moo
Sugimoto, Koh-ichi
|
| 信州大学研究者総覧へのリンク |
|
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氏名 |
Sugimoto, Koh-ichi |
|
URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.jCApjekV.html |
| 出版者 |
|
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出版者 |
IRON STEEL INST JAPAN KEIDANREN KAIKAN |
| 引用 |
|
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内容記述 |
ISIJ INTERNATIONAL. 52(6):1124-1129 (2012) |
| 書誌情報 |
ISIJ INTERNATIONAL
巻 52,
号 6,
p. 1124-1129,
発行日 2012-01
|
| 抄録 |
|
|
内容記述 |
A new type of 0.2%C-1.5%Si-1.5%Mn ultra high-strength low alloy TRIP-aided steel consisting of lath martensite structure matrix and metastable retained austenite films, "TRIP-aided martensitic steel; TM steel", was developed by means of quenching and partitioning process. In addition, effects of partitioning temperature and time on the microstructure and retained austenite characteristics were investigated. The matrix structure was composed of two kinds of lath martensite structures, or wide and narrow lath martensite structures. Most of the retained austenite of about 3 vol% was located along the narrow martensite lath boundary. On the other hand, a small amount of fine and needle-like carbides precipitated only in wider lath martensite structure. Partitioning at temperatures lower than 250 degrees C for 1 000 s after quenching in oil or ice brine considerably increased carbon concentration of the retained austenite phase to about 1.0 mass%, maintaining volume fractions of retained austenite and carbide. Also, the carbon-enrichment mechanism in the retained austenite was proposed through TEM observation, as well as the carbide precipitation and coarsening mechanisms. |
| 資源タイプ（コンテンツの種類） |
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| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0915-1559 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10680712 |
| 権利 |
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|
権利情報 |
Copyright© 2012 The Iron and Steel Institute of Japan |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| WoS |
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|
URL |
http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000305593800023 |
52_1124_Microstructure_Retained_Austenite_Characteristics.pdf (1.7 MB)
