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    • 9. 发明授权
    • Method of joining Ni-base heat resisting alloys
    • 连接Ni基耐热合金的方法
    • US4681251A
    • 1987-07-21
    • US782163
    • 1985-10-02
    • Shuichi KomatsuKazumi ShimotoriHiromitsu TakedaMasako Nakahashi
    • Shuichi KomatsuKazumi ShimotoriHiromitsu TakedaMasako Nakahashi
    • B23K35/00B23K35/28B23K1/04B23K20/24
    • B23K35/004B23K35/286
    • There is disclosed a method of joining Ni-base heat-resisting alloys which comprises forming, under an inert atmosphere, an aluminum layer on at least surfaces to be joined of a constructional member which has been divided into a plural number of parts composed of a Ni-base heat-resisting alloy reinforced by a .gamma.' phase in Ni.sub.3 Al system, followed by heating the parts so that said aluminum is dispersed in said Ni-base heat-resisting alloys, the joining portion (joint) contains substantially no .beta.-NiAl phase and a .gamma.'-Ni.sub.3 Al phase is dispersed therein to join the parts. The joint provided by the method according to the present invention has been improved in its strength and corrosion resistance at a high temperature. Further, the method according to the present invention can be carried out with a high degree of freedom in supplying a joining filler metal.
    • 公开了一种接合Ni基耐热合金的方法,其包括在惰性气氛下在至少被划分成多个部分的结构部件的表面上形成铝层的铝层 Ni3Al体系中由γ'相增强的Ni基耐热合金,然后加热部件使得所述铝分散在所述Ni基耐热合金中,所述接合部分(接头)基本上不含β-NiAl 相和γ'-Ni3Al相分散在其中以连接部件。 通过根据本发明的方法提供的接头在高温下的强度和耐腐蚀性得到改善。 此外,根据本发明的方法可以在供给接合填充金属时具有高自由度地进行。