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。
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.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2011年第10期976-978,共3页
Special Casting & Nonferrous Alloys
