Mg–6%Al–1%Zn–1%Ca合金圧延材の平面曲げ疲労特性に及ぼすミクロ組織の影響

DOI Web Site Web Site 被引用文献2件 参考文献5件
  • 斎藤 尚文
    国立研究開発法人産業技術総合研究所 構造材料研究部門
  • 鈴木 一孝
    国立研究開発法人産業技術総合研究所 構造材料研究部門
  • 野口 宗利
    権田金属工業株式会社 マグネシウム課
  • 伊藤 友美
    権田金属工業株式会社 マグネシウム課
  • 野田 雅史
    権田金属工業株式会社 マグネシウム課
  • 権田 善夫
    権田金属工業株式会社 マグネシウム課
  • 千野 靖正
    国立研究開発法人産業技術総合研究所 構造材料研究部門

書誌事項

タイトル別名
  • Effects of microstructure on plate bending fatigue properties of rolled Mg–6%Al–1%Zn–1%Ca plates
  • Mg-6%Al-1%Zn-1%Ca ゴウキン アツエンザイ ノ ヘイメン マゲ ヒロウ トクセイ ニ オヨボス ミクロ ソシキ ノ エイキョウ

この論文をさがす

抄録

<p>The plate bending fatigue tests were conducted under two conditions of stress ratio of 0 and −1, to investigate the effect of microstructure on the fatigue properties of Mg–6 mass%Al–1 mass%Zn–1 mass%Ca rolled plates along the rolling direction (RD-specimen) and the transverse direction (TD-specimen). Fatigue limit of the RD-specimen was almost the same as that of the TD-specimen when the stress ratio was −1. On the other hand, fatigue limit of the RD-specimen was slightly higher than that of the TD-specimen when the stress ratio was 0. SEM observations indicated that fatigue cracks initiated from the surface stressed in tension, and the second phase particles (Al–Ca compounds) acted as the crack initiation sites. Crack propagation direction was perpendicular to the stress direction, and the fracture occurred as a result of the crack connection. The crack length was larger in the TD-specimen than the RD-specimen especially for the case under the stress ratio of 0, and hence the anisotropy of the fatigue properties was apparently in the TD-specimen as compared to the RD-specimen. Although deformation twins were formed near the surface during the fatigue tests, they were not likely the governing factor of the crack initiation.</p>

収録刊行物

  • 軽金属

    軽金属 67 (12), 625-631, 2017

    一般社団法人 軽金属学会

被引用文献 (2)*注記

もっと見る

参考文献 (5)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ