溶接構造用アルミニウム合金A7003-T5の疲れき裂の起点について

村松 克己

doi:10.2464/jilm.37.61

村松克己

著者情報

ジャーナルフリー

1987 年 37 巻 1 号 p. 61-66

DOI https://doi.org/10.2464/jilm.37.61

詳細

発行日: 1987/01/30 受付日: 1986/05/16 J-STAGE公開日: 2008/07/23 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/07/23 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : In this paper, fatigue test was performed by using Schenck's plane-bending machine on the parent metal and buttwelded joints of extruded 7003-T5 alloy, and the relation between the crack initiation and the P-N diagrams were studied. At high stress levels, the P-N line shows a linear relation on the log-normal probability representation. However, when the stress level is close to the fatigue strength at 10⁷ cycles, the P-N curve is composed of two straight lines. In the case of the former and the short life region of the later, the initiation of main fatigue crack develops at intermetallic compounds, blow hole, dent of the toe of bead and cross slip zone on the surface. In the long life region of the later, the main fatigue crack initiates at the defects, such as intermetallic compounds or blow holes locating inner surfaces.
Right : In this paper, fatigue test was performed by using Schenck's plane-bending machine on the parent metal and buttwelded joints of extruded 7003-T5 alloy, and the relation between the crack initiation and the P-N diagrams were studied. At high stress levels, the P-N line shows a linear relation on the log-normal probability representation. However, when the stress level is close to the fatigue strength at 10⁷ cycles, the P-N curve is composed of two straight lines. In the case of the former and the short life region of the later, the initiation of main fatigue crack develops at intermetallic compounds, blow hole, dent of the toe of bead and cross slip zone on the surface. In the long life region of the later, the main fatigue crack initiates at the defects, such as intermetallic compounds or blow holes locating inner surfaces.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: 所属機関情報訂正内容: Wrong :
1) Junior college of Engineering, shizuoka university

Right :
1) Junior college of Engineering, Shizuoka University

訂正日: 2008/07/23 訂正理由: - 訂正箇所: 引用文献情報訂正内容: Wrong : 3) W. W. Sanders, Jr.: WRC Bulletin, No. 171 (1972), 1.
5) W. Harre and F. S. Rostasy: ALUMINIUM, 52 (1976), 713.

Right : 3) W. W. Sanders, Jr.: WRC Bulletin, No. 171 (1972), 1.
5) W. Harre and F. S. Rostásy: ALUMINIUM, 52 (1976), 713.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

In this paper, fatigue test was performed by using Schenck's plane-bending machine on the parent metal and buttwelded joints of extruded 7003-T5 alloy, and the relation between the crack initiation and the P-N diagrams were studied. At high stress levels, the P-N line shows a linear relation on the log-normal probability representation. However, when the stress level is close to the fatigue strength at 10⁷ cycles, the P-N curve is composed of two straight lines. In the case of the former and the short life region of the later, the initiation of main fatigue crack develops at intermetallic compounds, blow hole, dent of the toe of bead and cross slip zone on the surface. In the long life region of the later, the main fatigue crack initiates at the defects, such as intermetallic compounds or blow holes locating inner surfaces.

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