OS0304 マグネシウム合金のき裂先端部の変形応答

• 染川 英俊

  (独)物質・材料研究機構

• 井上 忠信

  (独)物質・材料研究機構

• SINGH Alok

  (独)物質・材料研究機構

• 向井 敏司

  神戸大学工学部

書誌事項

タイトル別名

• OS0304 Deformation behavior near crack-tip in magnesium

抄録

The effect of microstructural factor, such as grain size, on the deformation behavior near the crack tip region during the fracture toughness test was investigated using wrought Mg-Al-Zn alloy. The stress distributions related to {10-12} twinning was predicted by FEA, and the microstructural evolutions were confirmed through experiments. This type of twinning was formed at the beginning of the fracture toughness test due to the creation of a large stress field near the crack-tip region. The formation region of twinning became small with grain refinement because of the changes in the dominant plastic deformations. The results from microstructure observations showed similarities to the stress distribution from FEA. These results can be used to predict the macroscopic deformation features near the crack-tip.

収録刊行物

• M&M材料力学カンファレンス

  M&M材料力学カンファレンス 2012 (0), _OS0304-1_-_OS0304-2_, 2012

  一般社団法人 日本機械学会

キーワード

• Magnesium
• Fracture
• FEA
• Twinning

詳細情報

• CRID: 1390282680849642880
• NII論文ID: 110009937266
• DOI: 10.1299/jsmemm.2012._os0304-1_
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2012/0/2012__OS0304-1_/_pdf
• 本文言語コード: ja
• データソース種別:
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