| 摘要 |
A high-strength magnesium-based alloy possessing a microcrystalline composition represented by the general formula: MgaAlbMc or Mga,AlbMcXd (wherein M stands for at least one element selected from the group consisting of Ga, Sr, and Ba, X stands for at least one element selected from the group consisting of Zn, Ce, Zr, and Ca, and a, a', b, c, and d stand for atomic percents respectively in the ranges of 78</=a</=94, 75</=a'</=94, 2</=b</=12, 1</=c</=10, and 0.1</=d</=3). This alloy can be advantageously produced by rapidly solidifying the melt of an alloy of the composition shown above by the liquid quenching method. It is useful as high-strength materials and highly refractory materials owing to its high hardness, strength, and heat-resistance. It is also useful as materials with high specific strength because of light weight and high strength.
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