工业原料制备Zr-Cu基非晶合金及其压缩断裂行为研究  

Research preparation and compressive fracturing behavior of Zr-Cu based amorphous alloy prepared with industrial raw materials

作　　者：孙广杰[1,2] 任慧平[1] 王世伟[2] 赵军[2] 孙晓华[2] 战中学 

机构地区：[1]内蒙古科技大学材料与工程学院,内蒙古包头014010 [2]包头稀土研究院,内蒙古包头014030 [3]中国兵器工业集团第五二研究所,内蒙古包头014034

出　　处：《内蒙古科技大学学报》2014年第1期5-8,共4页Journal of Inner Mongolia University of Science and Technology

摘　　要：采用工业原料制备了Φ4 mm的Zr55Cu30Ni5Al10非晶合金棒材,利用XRD,DSC,SEM分析了该合金体系玻璃形成能力及压缩断裂行为.结果表明:Zr55Cu30Ni5Al10非晶合金棒材在10,15,20 K/s的升温速度下,过冷液相区△Tx分别为71.2,72.4,68.1 K,具有较大的玻璃形成能力.该非晶合金棒材抗压强度达到1 702 MPa,断口微观形貌为典型的脉络状花纹,在断口与试样连接处发现大量的剪切带存在,同时还产生了局部熔化现象.φ4mm Zr55Cu30Ni5Al10amorphous rod was prepared with industrial raw materials. The glass formation ability and compres- sive fracturing behavior of Zr55Cu30Ni5Al10amorphous alloy was investigated by using X-Ray diffraction （XRD） , differential scanning calorimetry （DSC） and scanning electron microscope （SEM）. The results show that the super cooled liquid region ATx of Zr55Cu30Ni5Al10 measured by DSC is 71.2,72.4,68.1 K at the heating rate of 10,15,20 K/s respectively. The material has large glass formation ability （GFA）. When compressive strength of Zr55Cu30Ni5Al10amorphous alloy rod reaches 1702 MPa, the micro-mor-phology of fracture surface shows typical choroids pattern, while large quantity of shear bands exist at the fracture and joint area, and partial fusion phenomena happened.

关 键 词：非晶合金 玻璃形成能力 压缩断裂 剪切带 

分 类 号：TG139[一般工业技术—材料科学与工程]