引用本文:鞠治刚,王法灵,江长友,陈露,秦克斌,陈杰.7050铝质弹壳涂层耐冲刷抗烧蚀性研究∗[J].中国表面工程,2021,34(4):46~52
JU Zhigang,WANG Faling,JIANG Changyou,CHEN Lu,QIN Kebing,CHEN Jie.Scouring and Ablation Resistance of 7050 Aluminum Cartridge Case Coating[J].China Surface Engineering,2021,34(4):46~52
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7050铝质弹壳涂层耐冲刷抗烧蚀性研究∗
鞠治刚1, 王法灵2, 江长友2, 陈露2, 秦克斌2, 陈杰2
1.重庆大学材料科学与工程学院 重庆 400032;2.重庆嘉陵特种装备有限公司 重庆 400032
摘要:
铝合金弹壳是实现弹药轻量化的重要途径之一,耐冲刷抗烧蚀涂层是大口径铝合金弹壳完成作战使命的有力保障。 针对 7050 铝质弹壳的“氧化陶瓷-有机硅树脂”复合涂层耐冲刷抗烧蚀性展开研究:采用 SEM 观察实弹射击前后复合涂层形貌变化,利用 ICP 法分析氧化陶瓷层的组成,测试涂层的耐热性、隔热性、结合力等耐冲刷抗烧蚀考核指标。 研究结果表明:复合涂层在高温高压的火药气体冲刷作用下,没有出现剥离脱落,铝质弹壳基体未见任何烧蚀,涂层表现出良好的耐冲刷抗烧蚀效果;氧化陶瓷底层由 Al2O3 、MgO、ZnO、CuO 四种高熔点的氧化物组成,具有较高的耐热性;复合涂层可使整体导热系数降低 50%以上,隔热性良好;复合涂层与基体结合力达到 0 级。 研究成果可为进一步优化大口径铝质弹壳涂层制备工艺、探究铝质弹壳涂层耐冲刷抗烧蚀机理奠定基础。
关键词:  铝质弹壳  复合涂层  耐冲刷  抗烧蚀
DOI：10.11933/j.issn.1007-9289.20210330002
分类号:TJ411
基金项目:中央军委装备发展部“十三五”国防基础预研项目
Scouring and Ablation Resistance of 7050 Aluminum Cartridge Case Coating
JU Zhigang1, WANG Faling2, JIANG Changyou2, CHEN Lu2, QIN Kebing2, CHEN Jie2
1.College of Materials Science and Engineering, Chongqing University, Chongqing 400032 , China;2.Chongqing Jialing Special Equipment Co., Ltd, Chongqing 400032 , China
Abstract:
Aluminum alloy cartridge case is one of the important methods to realize the lightweight of ammunition. The anti-scouring and anti-ablation coating is a powerful guarantee for large-caliber aluminum alloy cartridge case to complete the combat mission. The scouring and ablation resistance of the composite coating of “ oxidized ceramic-silicone resin” for 7050 aluminum cartridge case was studied. The morphology of the composite coating before and after firing was observed by SEM, the composition of the oxidized ceramic substrate was analyzed by ICP method, and the scouring and ablation resistance assessment indexes of the coating were tested, such as heat resistance, heat insulation, adhesive force, etc. The results show that the composite coating does not peel off under the scour action of high temperature and high pressure gunpowder gas, and the aluminum shell matrix does not show any ablation, the coating shows good anti-scouring and anti-ablation effect. The layer of oxidized ceramics is composed of Al2O3 , MgO, ZnO and CuO oxides with high melting point, which has high heat resistance. The composite coating can reduce the overall thermal conductivity of the material more than 50% and shows good thermal insulation. The adhesive force between the composite coating and the aluminum substrate reaches 0 grade. The research results can lay a foundation for further optimizing the preparation process of coating for large- caliber aluminum shells and exploring the mechanism of scouring and ablation resistance of coating for aluminum shells.
Key words:  aluminum alloy cartridge case  composite coating  scouring resistance  ablation resistance.
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