一、前言 炮管烧蚀是十分复杂的物理和化学现象。它包括火药气体及弹体对膛面热的(组织变化、残余应力消除、表面熔化及消融)、机械的(冲刷、磨损、疲劳)、化学的(氧化、渗碳、脱碳、氮化、硫化及扩散合金化)交互作用。 烧蚀是影响炮管寿命的一个重要原因。为了研究对策,需要弄清炮管的烧蚀原因,影响烧蚀的因素。通过分析膛面在烧蚀过程中所发生的变化,分析表面的化学组成,来 First, the foreword Cannula ablation is a very complex physical and chemical phenomena. It consists of gunpowder gas and projectile heat (tissue change, residual stress elimination, surface melting and ablation), mechanical (erosion, wear and fatigue), chemical (oxidation, carburization, decarburization, nitriding, Vulcanization and diffusion alloying) interaction. Ablation is an important factor affecting the life of a barrel. In order to study countermeasures, it is necessary to clarify the causes of ablation of the barrel and the factors that affect ablation. By analyzing the changes that occur in the bore during ablation, analyzing the chemical composition of the surface