Correlation of Microstructure and Cracking Phenomenon Occurring during Hot Rolling of Lightweight Steel Plates
In: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE; 41A; 138; 148; SCI급, SCOPUS 등재논문; SCI; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science; 2010-OAK-0000021112; 10579; METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.41A, no.1, pp.138 - 148; 000273242400015; 2-s2.0-73349131702
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Zugriff:
An investigation was conducted into the correlation of microstructure and the cracking phenomenon that often occurred in hot-rolled lightweight steel plates. Two kinds of steels were fabricated with varying Mn and Al contents, and their microstructures, tensile properties, and high-temperature transformation behavior were investigated. In the two steels, banded structures containing ferrite grains and kappa-carbides were well developed along the rolling direction. Detailed microstructural analyses showed that cracks initiated at film-type kappa-carbides continuously formed interfaces between bands, while the band populated with kappa-carbides did not play an important role in initiating cracks. Thus, the formation of band structures and film-type interfacial kappa-carbides must be minimized to prevent the cracking. The decreased content of hardenability elements, including aluminum, higher finish-rolling temperature, reduced central segregation during the slabmaking process, and decreased material variation during hot rolling, were suggested as practical methods for preventing the cracking. ; X ; 1 ; 1 ; 20 ; 19 ; scie ; scopus
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Correlation of Microstructure and Cracking Phenomenon Occurring during Hot Rolling of Lightweight Steel Plates
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Autor/in / Beteiligte Person: | Sang Yong Shin ; Lee, Hackcheol ; Seung Youb Han ; Seo, Chang-Hyo ; Choi, Kayoung ; Lee, S ; Kim, NJ ; Kwak, Jai-hyun ; Chin, Kwang-Geun ; 신소재공학과 ; 10052220 |
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Quelle: | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE; 41A; 138; 148; SCI급, SCOPUS 등재논문; SCI; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science; 2010-OAK-0000021112; 10579; METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.41A, no.1, pp.138 - 148; 000273242400015; 2-s2.0-73349131702 |
Veröffentlichung: | SPRINGER, 2010 |
Medientyp: | academicJournal |
ISBN: | 978-0-00-273242-0 (print) ; 0-00-273242-4 (print) |
ISSN: | 1073-5623 (print) |
DOI: | 10.1007/S11661-009-0081-1 |
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