【摘要】 单轴拉伸或压缩塑性形变在使具有较大半高宽值的硬状态材料的表面或基材的屈服强度得到提高的同时，却使它们的半高宽减小．喷丸表面及表层的半高宽大幅度减小，但表面的屈服强度却明显提高了．作者据此提出半高宽参量不能正确描述硬状态材料静强度性能的观点，并且认为这种材料的喷丸表面也获得了“加工硬化”，而不是许多研究者所说的“加工软化”更多还原

【Abstract】 The investigated material was treated in hard state. Uniaxial tensile or compressive plastic deformation caused an increase in the yield strengths and a decrease in the half width values for the unpeened surface and the base material of the shot peened speCimens. The half width values of the shot peened surface and surface layer greatly decreased, whereas the yield strength of this surface remarkably increased. The half width values could not correctly describe the static strength of a hard metallic material, the shot Peened surface of such materials is work hardened instead of work softened.更多还原