Effects of Heat Treatment on Microstructure and Properties of Cu-2.3Ni-0.3Be-0.15Zr Alloy

Zhu Zhiyuan; Dai Anlun; Liu Jingshuai; Yan Gaochuang

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Effects of Heat Treatment on Microstructure and Properties of Cu-2.3Ni-0.3Be-0.15Zr Alloy
Vol. 31, Issue 10, Pages: 976-978(2011)
Published： 2011 ，
DOI：

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[1]朱治愿,戴安伦,刘景帅,严高闯.热处理对Cu-2.3Ni-0.30Be-0.15Zr合金组织性能的影响[J].特种铸造及有色合金,2011,31(10):976-978.

Zhu Zhiyuan, Dai Anlun, Liu Jingshuai, et al. Effects of Heat Treatment on Microstructure and Properties of Cu-2.3Ni-0.3Be-0.15Zr Alloy. [J]. Special Casting & Nonferrous Alloys 31(10):976-978(2011)
[1]朱治愿,戴安伦,刘景帅,严高闯.热处理对Cu-2.3Ni-0.30Be-0.15Zr合金组织性能的影响[J].特种铸造及有色合金,2011,31(10):976-978. DOI：

Zhu Zhiyuan, Dai Anlun, Liu Jingshuai, et al. Effects of Heat Treatment on Microstructure and Properties of Cu-2.3Ni-0.3Be-0.15Zr Alloy. [J]. Special Casting & Nonferrous Alloys 31(10):976-978(2011) DOI：

摘要

通过添加适量的Zr元素

采用非真空熔炼制备了Cu-2.3Ni-0.30Be-0.15Zr合金;并对该合金进行了热处理强化工艺研究。用硬度计、涡流电导率测试仪和万能试验机测试合金性能

用金相显微镜（OM）观察合金的组织

探讨了合金的强化机理。结果表明

冷变形促进了合金的新相析出

合金经940℃×1.5h+30%冷变形+460℃×3h热处理后

其硬度（HB）达251

电导率达28.48MS/m

合金具有良好的综合性能。

Abstract

Cu-2.3Ni-0.3Be-0.15Zr alloy was fabricated with Zr addition by non-vacuum smelting

and heat treatment for the alloy prepared was conducted to improve the mechanical properties. The properties of the alloy prepared were measured by hardness testing

electric conductivity testing and universal machinery testing. The microstructure was observed by OM（optical microscope）

and the strengthening mechanism was introduced. The results show that cold deformation can promote the precipitation of new phase in the alloy. Hardness and electric conductivity of the alloy can reach 251 and 28.48MS/m

respectively

after solid solution at 940 ℃ for 1.5 hours and 30% cold deformation and aging at 460 ℃ for 3 hours

exhibiting acceptable comprehensive properties.