MG-AL OR MG-AL-ZN ALLOY EXCELLENT IN CORROSION RESISTANCE

摘要

PURPOSE: To improve the corrosion resistance of an Mg-Al or Mg-Al-Zn alloy. ;CONSTITUTION: This Mg alloy is an Mg-Al alloy excellent in corrosion resistance, which has a composition consisting of 2-5.3% Al and the balance Mg with inevitable impurities and where the area ratio of nodular structure in the arbitrary section of this alloy is regulated to ≥3%, or is an Mg-Al alloy excellent in corrosion resistance, which has a composition containing 9.7-12% Al and where the area ratio of the nodular structure is regulated to ≥7%. Further, this alloy can be an Mg-Al-Zn alloy prepared by adding Zn by the amount less than Al content into the above Mg-Al alloy.;COPYRIGHT: (C)1993,JPO&Japio