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2. 发明申请

WO2012132280A2 HEAT RESISTANT AND HIGH STRENGTH ALUMINUM ALLOY AND METHOD FOR PRODUCING THE SAME 审中-公开
标题翻译：耐热高强度铝合金及其制造方法
公开(公告)号：WO2012132280A2
公开(公告)日：2012-10-04
申请号：PCT/JP2012001742
申请日：2012-03-13
申请人： TOYOTA CHUO KENKYUSHO KK , MATSUOKA HIDEAKI , YAMADA YUKA
发明人： MATSUOKA HIDEAKI , YAMADA YUKA
IPC分类号： C22C1/04
CPC分类号： C22C21/00 , B22F3/20 , B22F2998/10 , C22C1/0416 , C22C1/0491 , B22F9/08 , B22F2003/208
摘要： A heat resistant and high strength aluminum alloy is provided to have significantly excellent high temperature strength and other properties. The heat resistant and high strength aluminum alloy according to the present invention is characterized by having an alloy composition, with the whole 100 mass% (referred simply to as "%" hereinafter), of 3% to 6% iron (Fe), 0.66% to 1.5% zirconium (Zr), 0.6% to 1% titanium (Ti), and the balance aluminum (Al) with inevitable impurities and/or modifying element, the mass ratio of Zr to Ti (Zr/Ti) being 1.1 to 1.5. The heat resistant and high strength aluminum alloy according to the present invention is comprised primarily of a matrix phase and an Al-Fe series intermetallic compound phase (first compound phase), and an Al-(Zr, Ti) series intermetallic compound of L12 structure (second compound phase) is possible to precipitate in the matrix phase in the vicinity of the boundary with the first compound phase so as to be in a matching manner. This second compound phase is stable even in a high temperature environment, and it is considered that the second compound phase inhibits the coarsening etc. of the first compound phase associated with the high temperature strength etc, thereby allowing the heat resistant and high strength aluminum alloy according to the present invention to achieve an excellent heat resistance.
摘要翻译：提供耐热，高强度的铝合金，具有优异的高温强度等特性。本发明的耐热高强度铝合金的特征在于，具有3质量％以上6％以下的铁（Fe），0.66（以下简称为“％”）的合金组成（Zr），0.6％〜1％的钛（Ti），余量的铝（Al）与不可避免的杂质和/或改性元素相比，Zr与Ti（Zr / Ti）的质量比为1.1〜 1.5。根据本发明的耐热高强度铝合金主要由基体相和Al-Fe系金属间化合物相（第一化合物相）和L12结构的Al-（Zr，Ti）系列金属间化合物组成（第二化合物相）可以在与第一化合物相的边界附近的基质相中析出，从而成为匹配的方式。该第二化合物相即使在高温环境下也是稳定的，认为第二化合物相抑制与高温强度相关的第一化合物相的粗化等，从而允许耐热和高强度的铝合金根据本发明实现了优异的耐热性。

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