【摘要】 随着武器装备的各项指标不断提升，火炮的发展受到身管寿命的限制，目前身管寿命的延长已成为重要研究方向。本文综述了身管内膛涂层改性技术的发展历程及最新研究进展，从火炮身管的失效机理出发，指出对火炮身管内膛表面进行改造的困难。重点对Cr涂层、Ta涂层、新陶瓷涂层等一系列涂层的性能以及研究进展进行了阐述。分析对比各种涂层改性中的优缺点，旨为继续进行身管延寿技术的研究提供参考。更多还原

【Abstract】 Although the relevant performance indicators of various artillery equipment have been significantly improved in recent years, the development of artillery is still limited by the service life of gun barrel. Nowadays, improving the firepower and extending the service life of artillery have become a hotspot for researchers. Therefore, more strict requirements are put forward on the ablation-and wear-resistance of the gun barrel, which has been the focus of the study on the longevity of the gun barrel. It is an effective method to improve the performance and to prolong the service life of the gun barrel by changing the material and the structure of the gun barrel. The development and recent advances in coating modification of gun barrel bore are summarized in this paper, and the performance requirements and modification related problems of the gun barrel bore are pointed out. The research progress and properties of Cr coating, Ta coating and new ceramic coatings are introduced emphatically. Then, advantages and disadvantages of various coatings are comparatively analyzed so that to provide reference for further research on life extension technology for gun barrel. Besides, the significant improvement the resistance to ablation,oxidation and wear of coatings prepared by electroplating and magnetron sputtering are introduced emphatically. The comprehensive analysis shows that the Cr coating and Ta coating prepared by electroplating and magnetron sputtering respectively have good resistance to ablation, oxidation and wear, which are the current and future research hotspots. Meanwhile, the new ceramic materials also show their advantages, namely, they present properties similar to the previous two coatings. It is also the development direction of surface modification of gun barrel bore in the future.更多还原