前言 硬度一般地说是固体材料抵抗弹性变形、塑性变形及其破坏的能力。木材显微硬度是在硬度测定的基础上,用显微镜来观测木材微观结构中,经过显微硬度测定后的变形情况。初步观测的结果表明显微硬度与木材微观结构有密切联系,并与木材的物理性质,木材密度等都存在着一定的关系。在生长轮材质分析中,显微硬度能够说明早材—晚材的木材材性变化过程,其测定值与生长轮中木材密度的变化曲线相吻合,并且起到了 Foreword Hardness is generally the ability of a solid material to resist elastic, plastic deformation and damage. Wood microhardness is determined on the basis of hardness, with a microscope to observe the microstructure of wood, after the determination of microhardness deformation. Preliminary observations indicate that the microhardness is closely related to the microstructure of the wood and has some relationship with the physical properties of wood and the density of wood. In the growth wheel material analysis, the microhardness can explain the wood material change process of earlywood-latewood, the measured value is consistent with the growth curve of wood density curve, and played