Cu-Ni-Nb-Mo alloy was prepared by vacuum arc-melting.Effects of alloy composition on microstructure

thermal conductivity and melting point of Cu-Ni-Nb-Mo alloy were analyzed.The results show that at a fixed Ni content

the precipitated phase in microstructure of the alloy prepared is increased with increasing in the content of Nb and Mo.The generation of precipitated phase can improve thermal conductivity of the alloy

however

it has a negative effect on melting point of the alloy.By orthogonal analysis

the influence order of alloying element on thermal conductivity and the melting point is presented as follows:Ni

Nb and Mo.Comprehensively considering the composition of the alloy on thermal conductivity and melting point

the optimized alloy components is Cu-15Ni-3Nb-2Mo

where thermal conductivity and melting point of the alloy reach 49.2W/（m·K）and 1 134.4℃

respectively.