고 에너지 빔 용접 방법
    48.
    发明公开
    고 에너지 빔 용접 방법 失效
    使用高能束焊接方法

    公开(公告)号:KR1020030047767A

    公开(公告)日:2003-06-18

    申请号:KR1020020076965

    申请日:2002-12-05

    Abstract: PURPOSE: A welding method by using a high-energy beam is provided to prevent crack by reducing fatigue during deformation at high temperature, and to minimize distortion and simplify the process for forming the superalloy joint portion by using the high-energy beam. CONSTITUTION: A method of welding members(12,14) formed of single-crystal superalloy is provided, and the members are particularly formed of single-crystal nickel-base superalloy containing 10 weight percent or more of refractory metal. A shim(24) is positioned between the members, and a backing strip(16) is preferably positioned to contact both members and bridge the gap between the members. The members are then welded together by using a high-energy beam(38) with a low current pulse frequency, i.e. about 10 to 50Hz, and low travel speed, i.e. about 0.85 to about 1.5cm/s. The members are welded by using the high-energy beam with voltage of about 100 kV to 150 kV and current of about 10 mA to 40 mA, and the superalloy is mixed by melting the contact portions of the members to form the welded joint portion by cooling.

    Abstract translation: 目的:提供通过使用高能束的焊接方法,以通过降低高温变形时的疲劳来防止裂纹,并且通过使用高能束来最小化变形并简化用于形成超合金接合部的工艺。 构成:提供由单晶超合金构成的焊接部件(12,14)的方法,特别是由含有10重量%以上的难熔金属的单晶镍基超合金构成。 垫片(24)位于构件之间,并且衬垫条(16)优选地定位成接触两个构件并桥接构件之间的间隙。 然后通过使用具有低电流脉冲频率(即约10至50Hz)和低行进速度即约0.85至约1.5cm / s的高能束(38)将构件焊接在一起。 通过使用约100kV至150kV的电压和约10mA至40mA的电流的高能束焊接构件,并且通过熔化构件的接触部分来混合超合金,以形成焊接接头部分,由 冷却。

    Rhenium-free single crystal superalloy for turbine blade and vane application
    50.
    发明专利
    Rhenium-free single crystal superalloy for turbine blade and vane application 有权
    涡轮叶片和叶片应用的无铑单晶超级合金

    公开(公告)号:JP2013108166A

    公开(公告)日:2013-06-06

    申请号:JP2012145568

    申请日:2012-06-28

    Abstract: PROBLEM TO BE SOLVED: To develop single crystal nickel-base superalloys that exhibit excellent high temperature creep resistance, while reducing or eliminating the need for rhenium additions, and while retaining other desirable properties such as good castability and phase stability.SOLUTION: A rhenium-free nickel-base superalloy for single crystal casting that exhibits excellent high temperature creep resistance, while also exhibiting other desirable properties for such alloys, comprises 5.60 to 5.85% aluminum, 9.4 to 9.9% cobalt, 5.0 to 6.0% chromium, 0.08 0.35% hafnium, 0.50 to 0.70% molybdenum, 8.0 to 9.0% tantalum, 0.60 to 0.90% titanium, 8.5 to 9.8% tungsten, the balance comprising nickel and minor amounts of incidental elements.

    Abstract translation: 要解决的问题:开发显示出优异的耐高温蠕变性的单晶镍基超级合金,同时减少或消除对添加铼的需要,同时保持其它所需的性能,例如良好的浇铸性和相稳定性。 解决方案:用于单晶铸造的无铼镍基超级合金,其表现出优异的耐高温蠕变性,同时对于这种合金也表现出其它期望的性能,包括5.60〜5.85%的铝,9.4〜9.9%的钴,5.0〜 6.0%铬,0.08 0.35%铪,0.50-0.70%钼,8.0-9.0%钽,0.60-0.90%钛,8.5-8.8%钨,余量包括镍和少量偶然元素。 版权所有(C)2013,JPO&INPIT

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