With the same idea for thin film test, a method was proposed to determine the yield strength and hardening index of small volume of material by indentation loading curve using spherical indenter.

• 通过对小体积材料球压人过程的数值研究，获得了小体积材料基本力学性 能与球压人响应间的函数关系，并据此提出用球形压头的纳米压入加载曲线确 定小体积材料屈服强度与硬化指数的新方法。