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利用纳米探针仪研究硅元素对Mg60Cu30Y10非晶合金的载荷-位移曲线和力学性能的影响。结果显示,Mg60Cu30-xY10Six非晶合金载荷-位移曲线上不连续锯齿状台阶对应其剪切带的形成和扩展。随着硅元素含量的增加,相同加载速率下,载荷-位移曲线上的台阶逐渐减少,直至消失。随着加载速率和应变速率的不断增加,非晶合金Mg60Cu30-xY10Six载荷-位移曲线上的锯齿状台阶逐渐消失。非晶合金Mg60Cu30-xY10Six的力学性能不是简单地随着组元的含量、数量等参数的增大而提高。
Effect of Silicon on Load - Displacement Curves and Mechanical Properties of Mg60Cu30Y10 Amorphous Alloys by Nanoprobe. The results show that discontinuous jagged steps on the load-displacement curve of Mg60Cu30-xY10Six amorphous alloy correspond to the formation and propagation of shear bands. With the increase of silicon content, the step on the load-displacement curve gradually decreases until it disappears at the same loading rate. With the increase of loading rate and strain rate, the jagged steps on the load-displacement curve of amorphous alloy Mg60Cu30-xY10Six gradually disappear. The mechanical properties of the amorphous alloy Mg60Cu30-xY10Six do not simply increase with the increase of the content, amount and other parameters of the components.