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1. 发明授权

US5300157A Aluminum-based intermetallic compound with high toughness and high wear resistance 失效
标题翻译：具有高韧性和高耐磨性的铝基金属间化合物
公开(公告)号：US5300157A
公开(公告)日：1994-04-05
申请号：US827632
申请日：1992-01-29
申请人： Sinji Okabe , Takashi Iwasa , Naoya Watanabe
发明人： Sinji Okabe , Takashi Iwasa , Naoya Watanabe
IPC分类号： C22C21/00 , C22C21/12 , F16D65/12 , F16D69/04
CPC分类号： C22C21/00 , C22C21/003 , C22C21/12 , F16D65/127 , F16D69/04 , F16D2069/0491
摘要： An Al-based intermetallic compound in which a eutectic crystal type Al-CuMn intermetallic compound dispersion phase is dispersed in an Al-Cu intermetallic compound matrix phase. The content of Mn as a eutectic crystal-forming element contained in the dispersion phase is set in a range of from 5% by weight (inclusive) to 30% by weight (inclusive). In the course of solidification of the Al-Cu-Mn intermetallic compound, an infinite number of dispersion phases are first crystallized, and the matrix phase is then crystallized. This ensures that the matrix phase is formed into a fine crystal structure due to hindrance of the growth thereof by the dispersion phase, leading to increases in hardness and toughness of the resulting Al-based intermetallic compound. In another embodiment, the Al-based intermetallic compound contains peritectic type Al-based intermetallic dispersion phase, such as formed by Ta, dispersed in the intermetallic compound matrix phase.
摘要翻译：共晶体型Al-CuMn金属间化合物分散相分散在Al-Cu金属间化合物基质相中的Al系金属间化合物。分散相中含有的作为共晶结晶形成元素的Mn的含量为5重量％以上30重量％以下的范围。在Al-Cu-Mn金属间化合物的固化过程中，首先结晶出无数个分散相，然后使基体相结晶。由此，由于分散相的生长受阻，基体相成为微细晶体结构，导致Al系金属间化合物的硬度和韧性提高。在另一个实施方案中，Al基金属间化合物包含分散在金属间化合物基质相中的由Ta形成的包晶型Al基金属间化合物分散相。

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