三种155 mm口径火炮弹带的磨损研究  

Research on the Wear of Three Driving-bands of 155 mm Caliber Artillery

作　　者：徐子晴 秦国辉 张辰涵 李一鸣 张庆[2] 李政 刘瑛[1] 王经涛[1] XU Ziqing;QIN Guohui;ZHANG Chenhan;LI Yiming;ZHANG Qing;LI Zheng;LIU Ying;WANG Jingtao(School of Materials Science and Engineering;School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学材料科学与工程学院,江苏南京210094 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《弹道学报》2025年第1期113-120,共8页Journal of Ballistics

基　　金：国家自然科学基金项目(U2141246)。

摘　　要：为深入研究弹带的磨损机制,探索弹带塑性变形的本质,对155 mm口径火炮3种弹带的表面形貌、成分、各部分组织及硬度进行对比。研究结果表明:尽管弹带具有不同的结构设计、成分构成以及各异的服役条件,但在服役后,其组织分布呈现出共性规律,其磨损程度与空间位置密切相关。非导转侧磨损普遍较轻,其组织结构主要为等轴组织;弹带凸起部位顶部因摩擦产生细晶组织,而内部组织形貌基本保持不变;导转侧上部磨损最为严重,组织演变由表及里呈现出细晶组织、纤维组织、长条组织、等轴组织的空间分布;导转侧底部的磨损程度低于上部;弹带工作过程中变形集中在表面,距离表面200μm以上的内部组织形貌几乎不发生变化。硬度分析显示,非导转侧的硬度与弹带内部相近,而弹带凸起位置上部与导转侧上部均出现“软-硬”结构,其中细晶组织的硬度最低,纤维组织的硬度最高,等轴组织硬度居中。在3种弹带中,H96-2磨损最为严重,而H96-1磨损最小。In order to deeply research the wear mechanism of driving bands and explore the essence of the plastic deformation of driving bands,a comparison was made on the surface morphology,composition,microstructure and hardness of three driving-bands of 155 mm caliber artillery.The research results show that although the driving bands have different structural designs,compositional makeups and diverse service conditions,their microstructure distributions present common patterns after being in service,and their wear degrees are closely related to spatial positions.The wear on the non-driving side is generally lighter,and its microstructure is mainly equiaxed structure.Due to friction,fine-grained microstructure is generated at the top of the protruding part of driving band,while the internal microstructure morphology remains basically unchanged.The wear on the upper part of the driving side is the most serious,and the microstructure evolution presents a spatial distribution of fine-grained microstructure,fibrous microstructure,elongated microstructure and equiaxed microstructure from the surface to the inside.The wear degree at the bottom of the driving side is lower than that of the upper part.During the working process of the driving band,the deformation is concentrated on the surface,and the internal microstructure morphology above 200μm from the surface hardly changes.The hardness analysis shows that the hardness on the non-driving side is similar to that inside the driving band,while both the upper part of the protruding position of the driving band and the upper part of the driving side present a"soft-hard"structure.Among them,the hardness of the fine-grained microstructure is the lowest;the hardness of the fibrous microstructure is the highest;the hardness of the equiaxed microstructure is in the middle.Among the three driving-bands,the wear of H96-2 is the most serious,while wear of H96-1 is the least.

关 键 词：弹带 梯度组织 塑性变形 磨损 

分 类 号：TJ385[兵器科学与技术—火炮、自动武器与弹药工程]