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中文摘要：
摘要：采用铜模吸铸法制备Cu50Zr42Al8非晶合金，并对其进行高温快速处理，通过X射线衍射（XRD）、差示扫描量热法（DSC）、场发射扫描电镜（SEM）、微机控制电子式万能力学试验机研究高温处理对Cu基非晶合金结构和压缩性能的影响。结果表明，873K处理后的试样未析出晶体相，其它试样析出相均含有Cu10Zr7和A1Cu2Zr，熔点以上处理后的试样还析出了CuZr2，且随着处理温度的升高析出相的体积分数逐渐增大；铸态试样塑性和强度最好，且随着处理温度的升高断裂强度先减小后增大，1148K处理的试样断裂强度最低，1223K处理的试样断裂强度是处理后试样中最高的，且经1198K处理的试样是处理后的试样中唯一出现塑性的，塑性应变为0．83％。
英文摘要：
Cu50Zr42Al8 amorphous alloy was prepared by copper mold casting process, then high temperature treatment at different temperatures was carried out. Structural, thermal and compressive properties of the an- nealed BMGs were studied by X-ray diffraction （XRD）, differential scanning calorimetry （DSC）, scanning elec- tron microscope （SEM） and compressive test methods. The results indicated： the sample treated at 873 K didn＇ t form new phase, the other samples formed CU10 Zr7 and AlCu2Zr new phases, and with the treatment tempera- ture increasing, the volume fraction of precipitated phase increased; the strength and plasticity of as-cast speci- men was the best, and with the heat treatment temperature increasing, fracture strength firstly increased and then decreased. The sample treated at 1 148 K had the lowest fracture strength, the 1 123 K had the highest in the samples treated. In addition to the as-cast specimen, only the sample treated at 1 198 K showed plasticity with the plastic strain 0.83 %.
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