高ひずみ速度におけるAC4CH-T6アルミニウム合金鋳物の引張応力 : ひずみ特性  [in Japanese] Tensile stress-strain characteristics of an AC4CH-T6 aluminum casting alloy at high strain rates  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

High strain-rate tensile stress-strain characteristics of AC4CH–T6 aluminum casting alloys are evaluated using the split Hopkinson bar. Tensile stress-strain data up to fracture are determined at strain rates of 500–800/s and compared with those at quasistatic and medium strain rates obtained on an tensile testing machine. The effect of strain rate on the tensile strength, elongation at fracture and absorbed Instron is investigated. It is shown that the tensile strength increases slightly, whereas the elongation at fracture and the absorbed energy decrease considerably with increasing strain rate. Microscopic examination reveals almost no difference between the static and impact fracture surface morphology of tension specimens. The large variation of the tensile properties is primarily attributed to the presence of microshrinkage defects within the aluminum casting alloy.

Journal

  • Journal of Japan Institute of Light Metals

    Journal of Japan Institute of Light Metals 52(6), 262-268, 2002-06-30

    The Japan Institute of Light Metals

References:  29

Codes

  • NII Article ID (NAID)
    10008833344
  • NII NACSIS-CAT ID (NCID)
    AN00069773
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    04515994
  • NDL Article ID
    6200450
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-284
  • Data Source
    CJP  NDL  J-STAGE 
Page Top