Si的添加对Zr-Fe-Cu合金系统的组织和力学性能的影响  

Influence of Si Micro-addition on Structure and Mechanical Properties of Zr-Fe-Cu Alloy System

作　　者：陈延[1] 黄文军[1] 寇生中[1] 

机构地区：[1]兰州理工大学甘肃有色金属新材料省部共建国家重点实验室,甘肃兰州730050

出　　处：《铸造工程》2011年第2期7-8,27,共3页Foundry Engineering

摘　　要：在Zr-Fe—Cu合金中添加Si，利用铜模铸造法制备出直径为3mm的Zr基非晶／晶体复合材料。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和微机控制电子式万能试验机等技术手段，研究了Si元素的添加对Zr-Fe-Cu合金的微观结构、非晶形成能力、压缩力学性能以及断口形貌的影响。结果表明：Si元素对非晶材料的性能与结构有很大的影响，能够提高合金的强度和塑性。By adding Si to Zr-Fe-Cu alloy, amorphous/crystalline Zr-based composite alloy rods with a diameter of 3.0 mm were prepared by a copper mold suction casting method in water cooling crucibles. The microstructure and mechanical properties of Zr-based alloys were studied by X-ray diffraction （XRD）, microcomputer-controlled electronic universal test machine and scanning electron microscopy （SEM）. The results revealed that the microstructure, glass forming ability, mechanical properties and fracture morphologies of Zr-Fe-Cu alloy change greatly with the content of added Si. In addition, strength and plasticity of the alloys can be improved with added Si.

关 键 词：Zr-Fe—Cu合金 非晶/晶体复合材料 断裂强度 塑性变形 

分 类 号：TB383[一般工业技术—材料科学与工程]