铸造工艺参数对Zr基非晶合金充型能力的影响  

Effect of Casting Process on Filling Capacity of Zr-Based Amorphous Alloy

作　　者：李春玲[1] 樊建军 李绍冰 李晓诚 寇生中[2] LI Chun-ling;FAN Jian-jun;LI Shao-bing;LI Xiao-cheng;KOU Sheng-zhong(School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China;School of Materials Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,Gansu,China)

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050 [2]兰州理工大学材料科学与工程学院,甘肃兰州730050

出　　处：《铸造》2023年第9期1099-1104,共6页Foundry

基　　金：国家自然科学基金项目(51971103);甘肃省重点研发计划项目(20YF8GA052)。

摘　　要：液态金属的流动性是影响其充型能力的主要因素之一,采用U形铜模研究了不同工艺参数对Zr_(55)Cu_(30)Al_(10)Ni_(5)和Zr_(61)Ti_(20)Cu_(25)Al_(12)合金充型能力以及非晶形成能力的影响。结果表明:随吸铸功率和吸铸压力的升高,两种合金熔体的流动长度增加,充型能力逐渐增强。Zr_(55)Cu_(30)Al_(10)Ni_(5)在吸铸功率8 k W,吸铸压力0.02 MPa,Zr_(61)Ti_(20)Cu_(25)Al_(12)在吸铸功率7 k W、吸铸压力0.03 MPa时,充型能力强。采用X射线衍射(XRD)、差示扫描量热(DSC)分析结果表明不同铸造参数下的试样均为非晶态结构,且适当提高吸铸功率,有助于提升铸造合金非晶形成能力(GFA)。The casting fluidity of liquid metal is one of the main factors affecting its filling capacity.The effect of process parameters on the filling capacity and amorphous forming ability of Zr_(55)Cu_(30)Al_(10)Ni_(5)and Zr_(61)Ti_(20)Cu_(25)Al_(12)alloys were studied by using a self-designed U-shaped copper mold.Fluidity test results demonstrated that the flow length increased with the increase of suction casting power and suction casting pressure,which indicated that the filling capacity was gradually improved.The optimized parameters were suction casting power 8 kW,suction pressure 0.02 MPa for Zr_(55)Cu_(30)Al_(10)Ni_(5),suction casting power 7 kW,suction pressure 0.03 MPa for Zr_(61)Ti_(20)Cu_(25)Al_(12),respectively.Phase analysis by X-ray diffraction(XRD)and differential scanning calorimetry(DSC)demonstrated that the samples under all suction casting parameters were fully amorphous structure,and properly increasing the suction casting power is helpful to improve the amorphous forming ability(GFA)of casting alloy.

关 键 词：ZR基非晶合金 充型能力 工艺参数 流动长度 

分 类 号：TG441.8[金属学及工艺—焊接]