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Al-Zn-Mg 合金の応力腐食割れに関する研究(第１報)
http://hdl.handle.net/10105/2279
http://hdl.handle.net/10105/227927ec0b95-5649-4739-8d2f-799b50accc4f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
NUE32_2_99-112.pdf (1.9 MB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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| 公開日 | 2010-02-03 | |||||||||
| 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(第１報) | |||||||||
| 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
× 武, 和彦
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| 著者(ヨミ) | ||||||||||
| 姓名 | オカ, トシヒロ | |||||||||
| 著者(ヨミ) | ||||||||||
| 姓名 | タケ, カズヒコ | |||||||||
| 著者別名 | ||||||||||
| 姓名 | OKA, Toshihiro | |||||||||
| 著者別名 | ||||||||||
| 姓名 | TAKE, Kazuhiko | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Al-5.3wt. %Zn-1.4wt.%Mg alloy specimens were heated by three conditions of aging (1) at 120℃ for 2 days, (2) at lOO℃ for 3 days and (3) 80℃ for 4 days after quenching into water at 0℃, after solidification at 460℃ for an hour. Nineteen test pieces on each aging condition were tested under the constant applied stress (80% or 60% of the yield stress, σy) in 3.5% NaCl+0.2% H202 solution of pH 4.0. Crack initiation time (ti), crack propagation time (tc) and failure time (tf) were measured and plotted on the Weibull's probability paper which is widely used in reliability engineering. Probability distributions of failure time (tf=ti+tc) were found to be described as the single Weibull's distributions. The shape parameter (m) of the Weibull's distribution of failure time was found to be nearly unity (m≒1) at applied stress of 80% of the yield stress, and larger than unity (m＞1) at applied stress of 60% of the yield stress, on each aging condition. Other parameters of the Weibull's distribution which are the location parameter (γ) and the scale parameter (α) were calculated. And then, the cumulative failure distribution function F(t), failure probability density function f(t) and failure rate λ(t) vs time curves, and the calculated frequency (fc) were described on the histogram of each condition. By microscopic observations, the crack propagations by stress corrosion cracking of the alloy seemed to be the type of intergranular cracking in all conditions. | |||||||||
| 書誌情報 |
奈良教育大学紀要. 自然科学 巻 32, 号 2, p. 99-112, 発行日 1983-11-25 |
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| 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 Stress Corrosion Cracking in Al-Zn-Mg Alloy (Ⅰ) | |||||||||
| 出版者 | ||||||||||
| 出版者 | 奈良教育大学 | |||||||||
