| 摘要 |
PURPOSE:To produce an Al based alloy having excellent heat resistance, plastic workability and toughness by prepg. the Al alloy contg. specific ratios or Cr and Ti by powder metallurgy. CONSTITUTION:The Al based alloy contg., by weight, 5-10% Cr, 0.5-3% Ti and the balance consisting of Al with inevitable impurities and satisfying the area expressed by one or more conditions shown by >=8% Cr+1.2 Ti, <=10.5% Cr+Ti or <=10% Cr+0.6 Ti is prepd. by the powder metallurgy. In this way, the Al based alloy having good plastic workability and toughness and having improved heat resistance is obtd.
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