Alloy for Liquid-Phase Diffusion Bonding
An alloy having a low melting point for liquid-phase diffusion bonding capable of bonding both Ni-based heat resistance alloy material and Fe-based steel material. The alloy comprises in atom percent (%): 22<Ni≦60, B: 12-18, C: 0.01-4, and the balance being Fe and residual impurities; or comprises in atom percent (%): 22<Ni≦60, B: 7-18, 4≦C≦11, and the balance being Fe and residual impurities.
1 - 20 . (canceled)
21 . An alloy for liquid-phase diffusion bonding, consisting of in atom percent (%):
Ni: 30-50, Fe: 35-55,
B: 12-18,
C: 0.01-4, and optionally one or more selected
0.01≦Si<1,
W: 0.7-5,
Mo: 0.1-5
Cr: 0.1-20, and
V: 0.1-10,
and residual impurities, wherein the total amount of the elements is 700 atom percent (%).
22 . An alloy for liquid-phase diffusion bonding, comprising in atom percent (%):
22<Ni≦60,
B: 7-18,
4<C≦11, optionally one or more selected from
0.01≦Si<1,
W: 0.7-5,
Mo: 0.1-5,
Cr: 0.1-20 and
V: 0.1-10
and the balance being Fe and residual impurities.
23 . The alloy as in claim 21 or 22 , wherein the alloy has a melting point of 1030-1100° C. and has a ratio of (tensile strength of bonded portion)/(tensile strength of base material) of 1.00 or more.
24 . The alloy as in claim 21 or 22 , wherein the alloy is in the form of a powder having an average particle diameter of 5-300 μm.
25 . The alloy as in claim 21 or 22 , wherein the alloy is in the form of a foil having a thickness of 3-200 μm.
26 . A structure comprising at least two components comprising a nickel based alloy base material bonded to each other through the alloy as claimed in claim 21 or 22 .
27 . A structure comprising at least two components comprising an iron based steel material bonded to each other through the alloy as claimed in claim 21 or 22 .