Improvement of Charpy impact strength of aluminum alloy die castings by PRPC process

Yoshihiko Hangai, Soichiro Kitahara, Kenji Sato, Osamu Kuwazuru, Takao Utsunomiya, Nobuhiro Yoshikawa

研究成果: Article査読

抄録

An eruption of porosities which degrade strength reliability of products, is inevitable in the die casting process. We have investigated PRPC (Porosity Reducing Post Compression) process of ADC12 aluminum alloy die castings to reduce inside porosity. In this study, a validity of PRPC process is demonstrated in terms of the Charpy impact strength. We ensure that the porosity ratio was considerably reduced by the PRPC process by means of X-ray CT observation. We conclude that the Charpy impact strength improves since the effective cross-sectional area of the specimen concerning fracture increases after PRPC process without any harmful influence. This conclusion is exemplified by the flat fracture surface of the specimen after PRPC process.

本文言語English
ページ(範囲)915-916
ページ数2
ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
74
6
DOI
出版ステータスPublished - 2008 6月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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