Diffusion layers of different steel samples were obtained by the chemical heat treatment of carbonizing, boronizing and sulphurizing.

• 研究了不同含碳量的钢件经渗碳、渗硼、渗硼+渗硫等化学热处理后,获得的表面渗层对钢件弯曲断裂强度和挠度的影响。