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高張力鋼の応力腐食割れに及ぼす荷重履歴の影響
http://hdl.handle.net/2297/12467
http://hdl.handle.net/2297/124677fca7269-7efb-4fd8-a043-f5b25568bba5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-HIROSE-Y-822.pdf (679.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | 高張力鋼の応力腐食割れに及ぼす荷重履歴の影響 | |||||
| タイトル | ||||||
| タイトル | Effect of Pro-Loading Conditions on Crack Initiation and Propagation in Stress Corrosion Cracking for High Strength Steel | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
広瀬, 幸雄
× 広瀬, 幸雄× 田中, 啓介 |
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| 提供者所属 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 金沢大学大学院自然科学研究科 | |||||
| 書誌情報 |
材料=Journal of the Society of Materials Science, Japan 巻 29, 号 323, p. 822-828, 発行日 1980-08-15 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0514-5163 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00096175 | |||||
| 出版者 | ||||||
| 出版者 | 日本材料学会 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The effects of prior loading conditions on stress corrosion cracking (SCC) of high strength low alloy steel AISI 4340 in 3.5 percent NaCl solution environment were investigated with blunt-notched specimens of compact tension type. Without prior loading of notched specimens, the life to crack initiation at the notch root was found to be determined by the quotient of the stress intensity factor divided by the square root of notch tip radius in the range where the radius is larger than a certain value, i. e. the effective radius for a crack. In this range, it can be concluded that the initiation life is characterized by the maximum stress at the notch root. The effect of prior loading on the delay of crack initiation was examined with the specimens having the radius larger than the effective radius. The amount of delay was found to become larger as the pre-loading level increased. The residual stress formed near the notch root due to pre-loading was calculated by elastro-plasticity. A unique relation was established between the initiation life and the actual stress near the notch root which was obtained by subtracting the compressive residual stress from the applied maximum stress near the notch tip. When the K-value was raised in the growth stage, the growth rate immediately became the rate obtained in constant K-tests. On the other hand, when the K-value was partially reduced from K_2 to K_1, the incubation time was observed before the crack started growing under K_1-value. The threshold stress was also found to increase due to prior high loading. The incubation time t_<in> was expressed as a second power function of the difference of ΔK=K_2→K_1 The relation between t_<in> and ΔK was unaffected by the stress variation sequences tested, i. e. K_2→K_1, K_2→0→K_1 and K_1→K_2→K_1. The experimental relation was discussed based on the residual stress distribution due to load variation and the mechanochemical mechanisms of stress corrosion crack growth. | |||||
| 権利 | ||||||
| 権利情報 | 日本材料学会；本文データは日本材料学会の許諾に基づきCiNiiから複製したものである | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://ci.nii.ac.jp/naid/110002298286/ | |||||
