高張力SNCM8鋼の応力腐食割れにおけるき裂の微視分岐と巨視分岐

フォーマット:

論文

責任表示:

広瀬, 幸雄 ; 田中, 啓介 ; 矢島, 善次郎

言語:

日本語

出版情報:

日本材料学会, 1982-05-15

著者名:

• 広瀬, 幸雄
• 田中, 啓介
• 矢島, 善次郎

掲載情報:

材料=Journal of the Society of Materials Science, Japan

ISSN:

0514-5163      

巻:

31

通号:

344

開始ページ:

510

終了ページ:

514

バージョン:

publisher

概要:

The branching and growth mechanism of stress corrosion cracks in quenched-and-tempered SNCM 8 steel in 3.5% NaCl solution was analysed from a view point of fracture mechanics. The intermittent crack growth behavior was detected. The crack increment in each step of discontinuous crack growth was smaller than the plastic zone size and larger than the twice of the crack tip opening displacement. The crack branching mode was shown to be strongly … dependent upon the tempering temperature. The effect of crack branching on crack growth kinetics was separately discussed based on a mechano-chemical model of stress corrosion cracks. 続きを見る

URL:

http://hdl.handle.net/2297/12462