Multi-scale Mechanical Property Strength Analysis

grain refinement strengthening ） . In addition, the hardness is affected by the roundness of the indenter tip. Therefore, in order to establish an indentation method for the nano region, we pro-posed an empirical formula that uses monocrystal metal as a standard sample and converts the indentation depth into hardness. The hardness conversion of this nano region corresponds to the hardness of the macro region. Multi-scale mechanical properties were made possible by plotting hardness on the vertical axis and indentation size on the horizontal axis from the nano region to the macro region. In this paper, we describe the nanoindentation test equipment and the hardness conversion method for the nano region, and introduce examples of multi-scale mechanical characterization.