合金成分对Cu-Ni-Nb-Mo合金组织及热物性的影响

方玉峰; 卢百平; 陈诚

doi:10.15980/j.tzzz.2015.03.027

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合金成分对Cu-Ni-Nb-Mo合金组织及热物性的影响
Effects of Alloy Composition on Microstructure,Thermal Conductivity and Melting Point of Cu-Ni-Nb-Mo Alloy Prepared by Vacuum Arc-melting
2015年35卷第3期页码：318-321
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.03.027

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[1]方玉峰,卢百平,陈诚.合金成分对Cu-Ni-Nb-Mo合金组织及热物性的影响[J].特种铸造及有色合金,2015,35(03):318-321.

Fang Yufeng, Lu Baiping, Chen Cheng. Effects of Alloy Composition on Microstructure,Thermal Conductivity and Melting Point of Cu-Ni-Nb-Mo Alloy Prepared by Vacuum Arc-melting[J]. Special Casting & Nonferrous Alloys, 2015,35(3):318-321.
[1]方玉峰,卢百平,陈诚.合金成分对Cu-Ni-Nb-Mo合金组织及热物性的影响[J].特种铸造及有色合金,2015,35(03):318-321. DOI： 10.15980/j.tzzz.2015.03.027.

Fang Yufeng, Lu Baiping, Chen Cheng. Effects of Alloy Composition on Microstructure,Thermal Conductivity and Melting Point of Cu-Ni-Nb-Mo Alloy Prepared by Vacuum Arc-melting[J]. Special Casting & Nonferrous Alloys, 2015,35(3):318-321. DOI： 10.15980/j.tzzz.2015.03.027.

摘要

采用真空电弧熔炼工艺制备了Cu-Ni-Nb-Mo合金

研究了合金成分对合金组织及热导率和熔点的影响。结果表明

当Ni含量固定时

随着Nb、Mo元素含量的增加

合金组织中NiNb第二相增加

第二相能改善合金的热导率

但使合金熔点降低。通过正交试验分析发现

影响合金热导率和熔点的元素主次因素依次为Ni>Nb>Mo。综合考虑成分对合金热导率和熔点的影响

最优合金成分为Cu-15Ni-3Nb-2Mo

其热导率为49.2 W/（m·K）

熔点为1 134.4℃。

Abstract

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.

关键词

Cu-Ni-Nb-Mo合金真空电弧熔炼组织热导率熔点

Keywords

Cu-Ni-Nb-Mo AlloyVacuum Arc-meltingMicrostructureThermal ConductivityMelting Point

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