CAJ | 학술논문

以高纯铜锆金属母材为原料，采用铜模滴注的方法制备CuZr基非晶合金及其复合材料，并进行拉伸实验。利用扫描电镜、X射线衍射仪和扫描量热分析仪对Cu48 Zr48 Al4和Cu44．8 Zr48 Al4 Nb3．2合金进行结构表征和拉伸性能分析。结果表明：Nb元素微量添加能够改变Cu48 Zr48 Al4合金的组织形貌。 Cu48 Zr48 Al4合金为非晶复合材料，抗拉强度较小、塑性微弱，断口呈现树枝脉络；Cu44．8 Zr48 Al4 Nb3．2为非晶合金，具有较大的抗拉强度，没有塑性，断口为单一的塑坑形貌；两种合金断口表面均存在熔化现象，样品侧表面形成较少的剪切带。该研究为实际生产CuZrAlNb非晶复合材料提供了基础数据。
이고순동고금속모재위원료，채용동모적주적방법제비CuZr기비정합금급기복합재료，병진행랍신실험。이용소묘전경、X사선연사의화소묘량열분석의대Cu48 Zr48 Al4화Cu44．8 Zr48 Al4 Nb3．2합금진행결구표정화랍신성능분석。결과표명：Nb원소미량첨가능구개변Cu48 Zr48 Al4합금적조직형모。 Cu48 Zr48 Al4합금위비정복합재료，항랍강도교소、소성미약，단구정현수지맥락；Cu44．8 Zr48 Al4 Nb3．2위비정합금，구유교대적항랍강도，몰유소성，단구위단일적소갱형모；량충합금단구표면균존재용화현상，양품측표면형성교소적전절대。해연구위실제생산CuZrAlNb비정복합재료제공료기출수거。
This paper introduces the preparation of CuZr-based bulk metallic glasses composites ( BMGCs) from the high purity Cu, Zr, Al and Nb metal material as raw material, using the method of copper infusion, as is accompanied by tensile properties test. The preparation is validated by analyzing structural characterization and tensile properties of Cu48 Zr48 Al4 and Cu44. 8 Zr48 Al4 Nb3. 2 alloys by scanning electron icroscope(SEM), X-ray diffraction(XRD), Differential Scanning Calorimetry(DSC). The re-sults show that micro addition of Nb provides change in the microstructure of Cu48 Zr48 Al4 alloy, which be-haves as bulk metallic glass composites, exhibiting smaller tensile strength, weak plasticity, and fracture in the form of the dendritic structure; by contrast Cu44. 8 Zr48 Al4 Nb3. 2 alloy behaves bulk metallic glass, with greater tensile strength, little plasticity, and fracture typical of single plastic crater morphology;and both alloys experience the melting on the fracture surfaces, and a smaller quantity of shear bands form on the side surfaces of the samples. The study may provide the basic data for the practical production of CuZrAlNb BMGCs.