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    • 5. 发明专利
    • TiPt BASED HIGH TEMPERATURE SHAPE MEMORY ALLOY AND MANUFACTURING METHOD THEREOF
    • 基于TiPt的高温形状记忆合金及其制造方法
    • JP2014058711A
    • 2014-04-03
    • JP2012203383
    • 2012-09-14
    • National Institute For Materials Science独立行政法人物質・材料研究機構Ihi Corp株式会社Ihi
    • ABDUL WADOUDMITARAI YOKOTAKAHASHI MADOKATAKAHASHI SATOSHI
    • C22C5/04C22F1/00C22F1/14
    • PROBLEM TO BE SOLVED: To provide a high temperature shape memory alloy having enhanced high temperature strength by adding a third element other than Ni, Ir to TiPt and exhibiting large shape recovery at a high temperature, and to provide its manufacturing method.SOLUTION: A TiPt based high temperature shape memory alloy contains 42 to 63 atom % of Pt and the balance Ti with inevitable impurities, in which a part of the Ti is one or more kind of Hf, Zr, V, Nb, Ta, Mo and W and is substituted in a range of 0.1 to 15 atom % based on a whole composition, in which a part of the Pt is one or more kind of Ru and Co and is substituted in the range of 0.1 to 10 atom % based on the whole composition, or a part of the Pt is one or more kind of Pd and Au and is substituted in the range of 0.1 to 49.9 atom % based on the whole composition, and exhibits shape recovery after deformation at 1000°C or lower.
    • 要解决的问题:为了提供一种通过向TiPt中添加除Ni,Ir之外的第三元素并且在高温下显示出大的形状恢复而提高高温强度的高温形状记忆合金,并提供其制造方法。 TiPt基高温形状记忆合金含有42〜63原子%的Pt,余量为Ti和不可避免的杂质,Ti中的一部分为Hf,Zr,V,Nb,Ta,Mo和W中的一种以上, 以0.1〜10原子%的整数组成为基准,将Pt的一部分作为Ru,Co的一种以上且以0.1〜10原子%的范围代替, 或Pt的一部分为一种或多种Pd和Au,并且以0.1至49.9原子%的范围代替,基于整个组成,并且在1000℃或更低的变形后呈现形状恢复。
    • 6. 发明专利
    • Heat resistant titanium alloy
    • 耐热钛合金
    • JP2012251219A
    • 2012-12-20
    • JP2011125098
    • 2011-06-03
    • National Institute For Materials Science独立行政法人物質・材料研究機構
    • TAIRA TOKUMIKITAJIMA TOMONORIWU SONGQUANMITARAI YOKO
    • C22C14/00C22F1/00C22F1/18
    • PROBLEM TO BE SOLVED: To improve the high temperature strength of a heat resistant alloy by finely producing the oxide of a rare earth element(s) since there has been a problem that high temperature strength is low in the conventional heat resistant titanium alloy, thus its long time use at high temperature has been difficult.SOLUTION: The heat resistant titanium alloy has excellent ductility at room temperature, and exhibits high strength in the temperature range of 650 to 800°C. Concretely, the titanium alloy comprises Al of 5 to 10 mass%, one or more kinds selected from Sn and Zr of 0.1 to 10 mass%, one or more kinds selected from Mo and V of 0.1 to 5 mass%, Sc of 0.01 to 5 mass%, and the balance Ti with inevitable impurities. Further, by using an α phase having excellent high temperature strength as the main by solid solution strengthening, more causing strengthening by ScOand an α-TiAl compound, and by introducing a β having excellent workability in ≤5%, the heat resistant titanium alloy in which room temperature ductility and high temperature strength are well-balanced can be provided.
    • 要解决的问题:为了通过精细地制造稀土元素的氧化物来提高耐热合金的高温强度,因为存在常规耐热钛中的高温强度低的问题 合金,因此在高温下长时间使用是困难的。

      解决方案:耐热钛合金在室温下具有优异的延展性,并且在650至800℃的温度范围内显示出高强度。 具体地,钛合金包含Al为5〜10质量%的Al,Sn,Zr中的1种以上为0.1〜10质量%,Mo和V中的1种以上为0.1〜5质量%,Sc为0.01〜 5质量%,余量为Ti与不可避免的杂质。 此外,通过使用以固溶强化为主要优异的高温强度的α相,通过Sc 2 O 3 和α 3 Al化合物,并且通过在≤5%中引入优异的可加工性的β, 可以提供室温延展性和高温强度均衡的耐热钛合金。 版权所有(C)2013,JPO&INPIT