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Title: 炭素鋼の柱状オーステナイト結晶粒に及ぼすチタンとホウ素添加の影響
Other Titles: Effects of Addition of Titanium and Boron on Columnar Austenite Grain in Carbon Steel
Authors: 佐々木, 優嘉1 Browse this author
松浦, 清隆2 Browse this author →KAKEN DB
大笹, 憲一3 Browse this author
大野, 宗一4 Browse this author →KAKEN DB
Authors(alt): Sasaki, Masayoshi1
Matsuura, Kiyotaka2
Ohsasa, Kenichi3
Ohno, Munekazu4
Keywords: carbon steel
austenite structure
grain refinement
dendrite structure
Issue Date: 1-Sep-2008
Publisher: 日本鉄鋼協会
Journal Title: 鉄と鋼
Volume: 94
Issue: 9
Start Page: 331
End Page: 335
Publisher DOI: 10.2355/tetsutohagane.94.331
Abstract: We performed casting experiment of S45C steel, focusing on the effect of addition of Ti and B on as-cast austenite grain structure. Without the addition of these elements, the austenite structure consists of columnar grains over the whole sample in the present casting conditions. The addition of Ti and B leads to the formation of equiaxed austenite grains and, importantly, fully equiaxed austenite structure was observed in the sample with 0.2 mol% Ti and 0.4 mol % B. The microstructural observations indicated that this behavior of austenite structure stems from the columnar-to-equiaxed transition of ferrite dendrite structure. The addition of these elements, furthermore, leads to refinement of the columnar austenite grains
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: 大野 宗一

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