【摘要】 采用铜模吸铸法，成功地制备了直径3 mm的(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x（x=0、0.5、1.0、1.5、2.0）非晶合金棒材。利用氮氧分析仪、X射线衍射仪、差示扫描量热仪、万能试验机、显微硬度计和扫描电镜等手段，系统地研究了氮含量对(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x非晶合金的力学性能的影响。同时，对氮元素添加时非晶合金体系的剪切带与断口形貌进行了分析讨论。结果表明：不同氮含量的(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x合金中，氮含量（原子百分数）分别为0.08%、0.49%、1.18%、1.48%、1.73%；在添加微量氮元素前后，块体合金(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x均呈现完全非晶结构；原始Zr₅₅Cu₃₀Al₁₀Ni₅非晶合金的显微硬度值为478.62 HV，添加氮元素后显微硬度随氮含量增加而递增，显微硬度最高为519.16 HV；添加氮元素前，Zr₅₅Cu₃₀Al₁₀Ni₅合金的抗压强度为1 738 MPa、塑性形变量为2.1%；当x=0.5时，抗压强度降至1 719 MPa、塑性形变量降至1.0%；当x≥1.0时，抗压强度持续下降且塑性较差。更多还原

【Abstract】 Φ3 mm(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x（x=0,0.5,1.0,1.5,2.0 at%） metal glass bars were prepared by copper mold suction casting method.The effect of N element addition on the mechanical properties of(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x alloys was investigated by nitrogen and oxygen analyzer,X-ray diffractometer,differential scanning calorimeter universal testing machine,microhardness tester and scanning electron microscope.The results showed that the nitrogen content of(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x alloys with different nitrogen content were measured as 0.08,0.49,1.18,1.48,1.73 at%,respectively.The bulk(Zr₅₅Cu₃₀Al₁₀Ni₅)_100-xN_x alloys were completely amorphous before and after adding trace N element.The microhardness of Zr₅₅Cu₃₀Al₁₀Ni₅ amorphous alloy was 478.62 HV.When nitrogen was added,the microhardness increased with increasing nitrogen content.When nitrogen content was 2%,the microhardness was 519.16 HV.The compressive strength of Zr₅₅Cu₃₀Al₁₀Ni₅ alloy was 1 738 MPa and the plastic deformation was 2.1% without nitrogen addition.When nitrogen was added to 0.5%,the compressive strength decreased to 1 719 MPa and the plastic deformation decreased to 1.0%.When the nitrogen content was greater than 1.0 at%,the strength continued to decrease with plasticity.In addition,the shear band and fracture morphology of the amorphous alloy system with nitrogen were analyzed and discussed.更多还原