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タイトル高速度鋳鋼のころがり疲れき裂の進展
タイトルヨミコウソクド ジュコウ ノ コロガリ ツカレキレツ ノ シンテン
タイトル別表記Rolling Fatigue Crack Propagation on High Speed Cast Steel
作成者宮川, 昇
森重, 修一
沢本, 章
桑野, 正司
藤田, 武男
大城, 桂作
福井, 昂
戸高, 直人
松本, 秀行
作成者ヨミミヤカワ, ノボル
モリシゲ, シュウイチ
サワモト, アキラ
クワノ, マサシ
フジタ, タケオ
オギ, ケイサク
フクイ, タカシ
トダカ, ナオト
マツモト, ヒデユキ
作成者別表記Miyakawa, Noboru
Morishige, Shuuichi
Sawamoto, Akira
Kuwano, Masashi
Fujita, Takeo
Ogi, Keisaku
Fukui, Takashi
Todaka, Naoto
作成者所属山口大学教育学部
内容記述(抄録等)Characteristics of rolling contact fatigue of high speed cast steel were examined using a Nishihara type wear testing machine under lubricant. Crack propagation process was discussed referring to direct observation of cracks. The specimens containig 1.8%C, 5%Cr, 5%Mo, 5%W, 3.8 to 6.9%V and 5%Co were melted and poured into CO2 sand mould (34mm 0 X 100mm). These alloys were composed df MC, M2C and matrix. They were heated at 1173 to 1323K for 7. 2ks and quenched into oil bath. Then they were tempered at 803 to 823K for 7. 2ks. A pair of ring-like same species of specimens with diameter of 30mm and thickness of 8mm was set on the machine and rotated at the speed of 12. Om/s to 13. 3m/s. Applied stress was ranged from 1727 to 217OMPa. Large cracks were observed in the end of fatigue life. These cracks were supposed to occur under the specimen surface at first and propagate to the surface. Cracks generate and propagate along Zo position under specimen surface where shear stress becomes maximum. Cracks also go along the interface between matrix and M2C, pass through M2C and propagate along precipitated carbides in the matrix.
本文言語jpn
主題自然科学
資料タイプtext
出版者山口大学教育学部
出版者ヨミヤマグチ ダイガク キョウイク ガクブ
NII資料タイプ紀要論文
ISSN0513-1693
NCIDAN00243950
学内刊行物(紀要等)山口大学教育学部研究論叢(第2部)
掲載誌名研究論叢. 自然科学
掲載誌名別表記Bulletin of the Faculty of Education, Yamaguchi University. Natural science
46
2
開始ページ29
終了ページ40
発行日1996-10
著者版/出版社版その他
リポジトリIDC020046000203
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/C020046000203