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高張力鋼の切欠きCT試験片の破壊じん性試験破面のX線的研究
http://hdl.handle.net/2297/12461
http://hdl.handle.net/2297/12461997aa2f6-4156-4922-944f-98c2d481272d
名前 / ファイル | ライセンス | アクション |
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TE-PR-HIROSE-Y-783.pdf (1.1 MB)
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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 | 高張力鋼の切欠きCT試験片の破壊じん性試験破面のX線的研究 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | X-Ray Diffraction Study on Fracture Surface Made by Fracture Toughness Tests of Blunt Notched CT Specimen of High Strength Steel | |||||
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 |
矢島, 善次郎
× 矢島, 善次郎× 広瀬, 幸雄× 田中, 啓介× 小河, 弘 |
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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 32, 号 358, p. 783-789, 発行日 1983-07-15 |
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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 | Fracture toughness tests were carried out with blunt notched compact tension specimens of a high-strength low alloy steel, JIS SNCM 8 (equivalent to AISI 4340), tempered at several temperatures. The stress intensity factor K_ρ at the initiation of crack extension detected by the DC potential method was related to the initial notch-tip radius ρ by K_ρ=K_0(1+ρ/ρ_0)^<1/2> where K_0 and ρ_0 are material constants. This was derived through the concept of the fictitious notch-tip radius proposed by Tanaka and Hirose. The values of material constants K_0 and ρ_0 took the lowest values for the material tempered at 300℃. The residual stress near the fracture surface measured by the X-ray diffraction technique was tension. The depth of the plastic zone ω_y was measured by the distribution of residual stress beneath the fracture surface. It was related to the stress intensity factor at crack initiation K_i by the following fracture mechanics equation : ω_y=α(K_i/σ_Y)^2 where σ_y is the yield stress and α is from 0.14 to 0.12. The values of residual stresses very close to the fracture surface tended to decrease with increasing K_i, and were found to be a single-valued function of the fracture strain at the notch-tip determined from K_0 and ρ_0 values based on the fictitious notch-tip radius concept. | |||||
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/110002300385/ |