High-velocity impact characteristic of magnesium alloy under cryogenic temperature

Ryo Kubota, Akira Shimamoto, Meguru Tezuka, Daiju Numata, Kazuyoshi Takayama

研究成果: Article査読


High-velocity impact experiments were conducted on magnesium alloy plates at room and cryogenic temperature, 298 K and 153 K. An aluminum sphere with room temperature impinged at the target plate with its speed ranging from 0.5 to 1.7 km/s in 100 Pa air. The impact process was visualized by shadowgraph, and recorded with the ultra-high speed video camera. Results of the experiment was compared to results which were obtained from previous experiments for a thicker specimen. In addition, it was compared to experimental results from aluminum alloy specimens that our co-investigator presented in the past. As a result, the difference was found on the damage of debris cloud impingement. It was affected by bumper material, plate temperature and impact velocity. It is thought that the bumper performance of the magnesium alloy is better than aluminum alloy, because the damage of magnesium alloy was distributed more shallowly and more widely than that of aluminum alloy.

ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
出版ステータスPublished - 2010 5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学


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