Effects of Addition of Titanium and Boron on Columnar Austenite Grain in Carbon Steel

Sasaki, Masayoshi; Matsuura, Kiyotaka; Ohsasa, Kenichi; Ohno, Munekazu

Effects of Addition of Titanium and Boron on Columnar Austenite Grain in Carbon Steel

Sasaki, Masayoshi; Matsuura, Kiyotaka; Ohsasa, Kenichi et al.

ISIJ International, 2009, 49(9), 1367-1371

Permalink : https://hdl.handle.net/2115/75410

このアイテムのアクセス数:493件（2026-08-17 23:59 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
ISIJ Int. 49(9)_ 1367-1371 (2009)	pdf	3.94 MB	379

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/75410
タイトル	Effects of Addition of Titanium and Boron on Columnar Austenite Grain in Carbon Steel
著者	Sasaki, Masayoshi ; Matsuura, Kiyotaka ; Ohsasa, Kenichi ; Ohno, Munekazu
著者名 Sasaki, Masayoshi
e-Rad_Researcher 60142692 著者名 Matsuura, Kiyotaka
著者名 Ohsasa, Kenichi
e-Rad_Researcher 30431331 著者名 Ohno, Munekazu
キーワード	carbon steel
	casting
	austenite structure
	grain refinement
	columnar-to-equiaxed transition
発行日	2009-09-15
出版者	Iron and Steel Institute of Japan
出版者	日本鉄鋼協会
収録物名	ISIJ International
巻(号)	49(9)
ページ	1367-1371
抄録	Effects of titanium and boron addition on columnar austenite grain structure of S45C steel have been investigated in casting experiments with different cooling rates of 4.50 and 16.67°C/s. Without addition of these elements, the columnar austenite grains develop over the whole sample under the present casting conditions. The addition of titanium and boron induces 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, which is ascribable to pinning effect of boron nitride and titanium carbonitride.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	著作権は日本鉄鋼協会にある
PISSN	0915-1559
EISSN	1347-5460
NCID	AA10680712
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2355/isijinternational.49.1367