自润滑弹头壳用钢摩擦行为研究

doi:10.3969/j.issn.1000-1093.2018.12.019

兵工学报 ›› 2018, Vol. 39 ›› Issue (12): 2450-2458.doi: 10.3969/j.issn.1000-1093.2018.12.019

自润滑弹头壳用钢摩擦行为研究

胡春东¹，董瀚¹，赵洪山¹，向多伦²，王俊红³，李峻松³

（1.上海大学材料科学与工程学院，上海 200444； 2.重庆长江电工工业集团有限公司，重庆 401336； 3.中国兵器工业第208研究所，北京 102202)

收稿日期:2018-03-31 修回日期:2018-03-31 上线日期:2019-01-31
作者简介:胡春东(1981—)，男，博士后。 E-mail: huchundong99@163.com
基金资助:
总装备部瓶颈项目（2014年）

Research on Friction Behavior of Self-lubricating Steel of Bullet Jacket

HU Chun-dong¹, DONG Han¹, ZHAO Hong-shan¹, XIANG Duo-lun², WANG Jun-hong³, LI Jun-song³

(1.School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; 2.Chongqing Changjiang Electrical Appliances Industries Group Co., Ltd., Chongqing 401336, China；3.No.208 Research Institute of China Ordnance Industries, Beijing 102202, China)

Received:2018-03-31 Revised:2018-03-31 Online:2019-01-31

摘要/Abstract

摘要： 为减轻身管內膛磨损，提高身管寿命，提出了采用销盘摩擦方式模拟弹头与身管內膛的摩擦行为方法。利用扫描电子显微镜和光学轮廓仪对销盘摩擦表面分别进行表征，研究了常用弹头壳用材和自润滑弹头壳用钢对磨Cr层的摩擦行为，并对自润滑机制进行了探讨。结果表明：弹头壳用钢在低硬度范围内（161~227HV0.2），随着硬度的增加，室温摩擦系数缓慢降低（约11%），700 ℃高温时摩擦系数则变化不大，说明通过改变硬度来减小摩擦系数的效果不明显；而在超低碳钢（223HV0.2）中添加S和Pb，可形成固体润滑剂硫化物和Pb，室温摩擦系数可降低约25%，700 ℃高温时摩擦系数可降低23%~34%，有效地减轻了Cr层磨损。

关键词: 身管, 弹头壳, 弹头壳用钢, 自润滑, 摩擦系数, Cr层

Abstract: In order to reduce the frictional wear of barrel bore and enhance the lifetime of gun barrel, a method of pin-on-disc friction mode is used to simulate the friction between bullet jacket and barrel bore. The friction surfaces of disc and pin are characterized by using scanning electron microscope and optical profilometer, respectively. The friction behaviors of regular bullet jacket material and self-lubricating bullet jacket steel on Cr layer are investigated, and the mechanism of self-lubrication is discussed. Results show that, for the regular bullet jacket material with increased hardness (from 161 to 227HV0.2), the frictional coefficient decreases slowly (around 11%) at room temperature and varies slightly at 700 ℃, indicating that the increase in hardness is not an effective way to decrease the frictional coefficient. When S and Pb are added into the ultra-low carbon steel (223HV0.2), the solid lubricants of sulfide and Pb can be formed, resulting in reducing the frictional coefficient by 25% at room temperature and 23%-34% at 700 ℃, which effectively reduces the friction wear of Cr layer. Key

Key words: gunbarrel, bulletjacket, bulletjacketsteel, self-lubricating, frictionalcoefficient, Crlayer

中图分类号:

胡春东，董瀚，赵洪山，向多伦，王俊红，李峻松. 自润滑弹头壳用钢摩擦行为研究[J]. 兵工学报, 2018, 39(12): 2450-2458.

HU Chun-dong, DONG Han, ZHAO Hong-shan, XIANG Duo-lun, WANG Jun-hong, LI Jun-song. Research on Friction Behavior of Self-lubricating Steel of Bullet Jacket[J]. Acta Armamentarii, 2018, 39(12): 2450-2458.

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2018 年12月兵工学报ACTA
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自润滑弹头壳用钢摩擦行为研究

Research on Friction Behavior of Self-lubricating Steel of Bullet Jacket

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