| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-resistant Al-based alloy which is lightweight, and has superior high-temperature toughness, abrasion resistance, and high-temperature fatigue properties besides. SOLUTION: The Al-based alloy has a structure comprising an intermetallic compound phase of 50 to 90% by a volume fraction and the balance being a metallic Al matrix. Pools of the metallic Al, which are divided by the intermetallic compound phases, have a maximum length of 40μm or less by average, when the structure is observed with a magnification of 500 times through a scanning electron microscope. Thus produced Al-based alloy has improved high-temperature toughness, abrasion resistance, and simultaneously high-temperature fatigue properties. COPYRIGHT: (C)2006,JPO&NCIPI
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