J0410205 双ロール鋳造材を用いたAZX611マグネシウム合金板材の機械的特性とプレス特性([J041-02]工業材料の変形特性・強度およびそのモデル化 Mg合金の変形特性と組織,機械材料・材料加工部門)

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タイトル別名
  • J0410205 Mechanical Properties and Press Formability of Twin-Roll Cast AZX611 Magnesium Alloy Strip

抄録

It was well known that commercial AZ series Mg alloy show the easily ignition at low temperature comparison with Ca added Mg alloys. While magnesium alloys have long been drawing strong interest as the lightest structural materials available, their application has been limited mostly to die casting parts. The request for low cost magnesium sheet materials has been drastically increased for the application to automotive and electronic industries. In this study, deep drawing behavior and tensile properties of twin-roll casted subjected warm rolling Mg-6Al-1Zn-1Ca alloy (AZX611; 1 mm in thickness) have been investigated in comparison with AZ61 rolled alloy. In order to form the Al-Ca compound in AZX611 alloy, yield stress is higher than that of AZ61 alloy, but tensile strength and elongation was reduced due to it is unable to secure sufficient plastic deformation. On the other hands, changed the punch and die condition, limited drawing ratio (LDR) of AZX611 showed the 1.8 to 2.4 in which testing temperature at 250 to 350℃. As a result, there was formed an Al-Ca compound by addition of Ca, it was possible to obtain the drawability same to AZ61 alloy and structural refinement by dynamic recrystallization and crushed of Al-Ca compound during warm rolling process was effective.

収録刊行物

  • 年次大会

    年次大会 2014 (0), _J0410205--_J0410205-, 2014

    一般社団法人 日本機械学会

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