Proposal of strength evaluation method in casting material with defect: Using si-added noncombustible mg alloy

Shigeru Hamada, Komei Hayashi, Toshiharu Matsumoto, Michiru Sakamoto, Hiroshi Noguchi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In order to evaluate a casting material which has scatter tensile strength, a strength evaluation method was proposed. Tensile tests were carried out by specimen with a particular artificial defect as a fracture origin. The size of the fracture origin could be controlled using the proposed evaluation method. Therefore the tensile test results which have a little scatter were obtained. However shape of the artificial defect is different from one of casting defect and the effects of each defect on the tensile strength might be different. Then both of the stress intensity factors at the beginning of unstable fracture were compared, it was clarified that the artifical defect and the casting defect have the same effect on the tensile strength. By this method, a Si-added noncombustible Mg alloy which has large casting defects could be evaluated. It was clarified that there is no difference of tensile strength between 1% and 2% Si-added noncombustible Mg alloy, and it is obtained that the relationship between tensile strength and temperature.

Original languageEnglish
Pages (from-to)1326-1333
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume75
Issue number758
DOIs
Publication statusPublished - Oct 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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