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Title: 炭素鋼の凝固過程における柱状オーステナイト粒の形成に及ぼす炭素濃度と冷却速度の影響
Other Titles: The Effects of Carbon Content and Cooling Rate on the Development of Columnar Austenitic Grains in As-cast Steel
Authors: 松浦, 清隆1 Browse this author →KAKEN DB
伊藤, 洋一2 Browse this author
松原, 嘉市3 Browse this author
Authors(alt): Matsuura, Kiyotaka1
Itoh, Youichi2
Matsubara, Kaichi3
Keywords: carbon steel
austenitic structure
columnar austenitic grain
grain size
carbon content
cooling rate
temperature gradient
Issue Date: 1-May-1990
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 76
Issue: 5
Start Page: 714
End Page: 721
Publisher DOI: 10.2355/tetsutohagane1955.76.5_714
Abstract: Steels containing 0.01 to 0.49 mass% carbon were melted and then cooled at rates of 0.3 to 40°C/s to investigate the condition favorable for the formation of columnar austenitic grains. The results were summarized as folllows. 1) Large columnar grains were most remarkably developed in 0.1-0.3 mass%C region. 2) The region of the carbon content favorable for the development of columnar grains extended with increasing coiling rate. The computer simulation of the cooling process of the ingots was carried out to investigate the formation mechanism of the coulmnar grains. From the experiment and the simulation, it was concluded that the formation of columnar austenitic grains was attributable to the steep temperature gradient at the δ→γtransformation front.
Rights: 著作権は日本鉄鋼協会にある
Type: article
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)

Submitter: 松浦 清隆

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