公开(公告)号：US20170072458A1

公开(公告)日：2017-03-16

申请号：US15125491

申请日：2015-03-23

申请人： TANAKA KIKINZOKU KOGYO K.K.

发明人： Akira YOSHIKAWA ,  Yuui YOKOTA ,  Muneki NAKAMURA ,  Kunihiro TANAKA ,  Tatsuya NAKAZAWA ,  Koichi SAKAIRI

IPC分类号： B22D11/00 ,  B22D21/00 ,  C30B29/52 ,  C30B15/08 ,  C30B29/02 ,  C22C5/04 ,  B22D11/11

CPC分类号： B22D11/005 ,  B22D11/00 ,  B22D11/001 ,  B22D11/11 ,  B22D21/005 ,  C22C1/02 ,  C22C5/04 ,  C22F1/18 ,  C30B15/08 ,  C30B29/02 ,  C30B29/52

摘要： The present invention provides a metal wire rod composed of iridium or an iridium alloy, wherein the number of crystal grains on any cross-section in a longitudinal direction is 2 to 20 per 0.25 mm2, and the Vickers hardness at any part is 200 Hv or more and less than 400 Hv. The iridium wire rod is a material which is produced by a μ-PD method, and has low residual stress and which has a small change in the number of crystal grains and hardness even when heated to a temperature equal to or higher than a recrystallization temperature (1200° C. to 1500° C.). The metal wire rod of the present invention is excellent in oxidative consumption resistance under a high-temperature atmosphere, and mechanical properties.

摘要翻译： 本发明提供一种由铱或铱合金构成的金属线材，其中纵向方向的任何截面上的晶粒数为2〜20 / 0.25mm 2，任何部分的维氏硬度为200Hv或 多于400 Hv。 铱线棒是通过μ-PD法制造的材料，残留应力低，即使在加热到再结晶温度以上的温度下，晶粒数和硬度也有小的变化 （1200℃〜1500℃）。 本发明的金属线棒在高温环境下的耐氧化消耗性优异，机械性能优良。

公开(公告)号：US20170130310A1

公开(公告)日：2017-05-11

申请号：US15127348

申请日：2015-03-23

申请人： TANAKA KIKINZOKU KOGYO K.K.

发明人： Kiyohito ISHIDA ,  Toshihiro OMORI ,  Yutaka SATO ,  Kunihiro TANAKA ,  Muneki NAKAMURA ,  Koichi SAKAIRI ,  Tatsuya NAKAZAWA

IPC分类号： C22F1/10 ,  C22C30/00

CPC分类号： C22F1/10 ,  C22C19/03 ,  C22C19/055 ,  C22C19/056 ,  C22C30/00

摘要： The present invention relates to a NiIr-base heat-resistant alloy which includes a Ni—Ir—Al—W-base alloy which contains Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, W: 5.0 to 20.0 mass %, and the balance is Ni, and a γ′ phase having an L12 structure precipitating and dispersing in a matrix as an essential strengthening phase, and a ratio (Y/X) of a peak intensity (Y) of (201) plane of the Ir3W phase observed in the range of 2θ=48° to 50° to a peak intensity (X) of (111) plane of the γ′ phase observed in the range of 2θ=43° to 45° in X-ray diffraction analysis is 0.5 or less. The alloy exhibits good high-temperature property stably.

公开(公告)号：US20160040276A1

公开(公告)日：2016-02-11

申请号：US14774223

申请日：2014-03-11

申请人： TOHOKU TECHNO ARCH CO., LTD ,  TANAKA KIKINZOKU KOGYO K.K.

发明人： Kiyohito ISHIDA ,  Toshihiro OMORI ,  Yutaka SATO ,  Kunihiro TANAKA ,  Muneki NAKAMURA ,  Koichi SAKAIRI

IPC分类号： C22F1/00 ,  C22C30/00

CPC分类号： C22F1/00 ,  C22C19/03 ,  C22C30/00 ,  C22F1/10 ,  C22F1/14

摘要： The present invention is a heat-resistant Ni-base alloy including a Ni—Ir—Al—W alloy having essential additive elements of Ir, Al, and W added to Ni, wherein the heat-resistant Ni-base alloy includes Ir: 5.0 to 50.0 mass %, Al: 1.0 to 8.0 mass %, and W: 5.0 to 20.0 mass %, the balance being Ni, and a γ′ phase having an L12 structure disperses in a matrix as an essential strengthening phase. The heat-resistant material including the Ni-base alloy may contain one or more additive elements selected from B: 0.001 to 0.1 mass %, Co: 5.0 to 20.0 mass %, Cr: 1.0 to 25.0 mass %, Ta: 1.0 to 10.0 mass %, Nb: 1.0 to 5.0 mass %, Ti: 1.0 to 5.0 mass %, V: 1.0 to 5.0 mass %, and Mo: 1.0 to 5.0 mass %, or 0.001 to 0.5 mass % of C.

摘要翻译： 本发明是一种耐Ni基合金，其中Ni-Ir-Al-W合金具有添加到Ni中的Ir，Al和W的重要添加元素，其中耐热Ni基合金包括Ir：5.0 至50.0质量％，Al：1.0〜8.0质量％，W：5.0〜20.0质量％，余量为Ni，具有L12结构的γ'相分散在基质中作为必需的强化相。 包含Ni基合金的耐热材料可以含有选自B：0.001〜0.1质量％，Co：5.0〜20.0质量％，Cr：1.0〜25.0质量％，Ta：1.0〜10.0质量％ ％，Nb：1.0〜5.0质量％，Ti：1.0〜5.0质量％，V：1.0〜5.0质量％，Mo：1.0〜5.0质量％，或0.001〜0.5质量％。