WEKO3
アイテム
Al-Zn-Mg合金の応力腐食割れに関する研究 －破断寿命に及ぼす試験片形状の影響について－
http://hdl.handle.net/10105/1616
http://hdl.handle.net/10105/1616751c99e4-8274-49da-8af8-9d1e83ac4067
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
NUE44_2_37-48.pdf (1.1 MB)
|
|
| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-06-10 | |||||||||
| タイトル | ||||||||||
| タイトル | Al-Zn-Mg合金の応力腐食割れに関する研究 －破断寿命に及ぼす試験片形状の影響について－ | |||||||||
| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 著者 |
岡, 俊博
× 岡, 俊博
× 今井, 学
|
|||||||||
| 著者(ヨミ) | ||||||||||
| 姓名 | オカ, トシヒロ | |||||||||
| 著者(ヨミ) | ||||||||||
| 姓名 | イマイ, マナブ | |||||||||
| 著者別名 | ||||||||||
| 姓名 | OKA, Toshihiro | |||||||||
| 著者別名 | ||||||||||
| 姓名 | IMAI, Manabu | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Al-5.91wt.%Zn-1.96wt.%Mg-0.16wt.%Fe alloy specimens with a thickness of 1mm were prepared five different shapes named H-shape, I-shape,V-shape,0-shape,and U-shape by a fraise-machine, a drill machine, and a hand-saw. They were heated in the condition of aging at 120℃ for 24 hours, after solidification at 450℃ for 30 minute and quenching into water at 0℃. Nineteen test-specimens with the same shape were tested in order to measure failure times of the stress corrosion cracking under three constant applied stresses (80%,60%,40% of 0.2% flow stress, σy,) in 3.5% NaCl + 0.2% H202 water solution of pH 5.2. Nineteen failure times measured were plotted on the Weibull's probability paper which is widely used in the reliability engineering. Cumulative probability distributions of failure time were found to be described as the single Weibull's distribution. The shape parameters (m) of the Weibull's distribution of failure time were found to lie between 3 to 8. The scale parameters (η) of the Weibull's distribution were obtained. The average failure times (μ) were calculated by the values of m and η. The failure probability density function f(t) vs. time (t) curves were plotted in order to compare the effect of the applied stresses in the same shape, and the cumulative failure distribution function F(t) vs. time (t) curves were plotted in order to compare the effect of the five specimen's shapes under the same applied stress. Notch-effects in their shapes to the stress-concentration were calculated by the finite element method and displayed on the computer. The mechanisms of failure which occur with the intergranular cracking and the transgranular cracking were discussed on specimen's shapes and applied stresses by the above mentioned results. | |||||||||
| 書誌情報 |
奈良教育大学紀要. 自然科学 巻 44, 号 2, p. 37-48, 発行日 1995-11-24 |
|||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 05472407 | |||||||||
| 書誌レコードID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN00181070 | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | A Study of Corrosion Cracking in Al-Zn-Mg Alloy －Influence of Specimen's Shape on the Failure Time－ | |||||||||
| 出版者 | ||||||||||
| 出版者 | 奈良教育大学 | |||||||||
