原子氧对不锈钢的作用  

Irradiation Effect of Atomic Oxygen on Stainless Steel

作　　者：姜海富[1] 李胜刚 田修波[3] 柴丽华[4] 秦玮[1] 于强[1] 

机构地区：[1]北京卫星环境工程研究所可靠性与环境工程技术重点实验室,北京100094 [2]中国石油天然气管道局东南亚项目经理部,河北廊坊065000 [3]哈尔滨工业大学材料学院现代焊接生产技术国家重点实验室,哈尔滨150001 [4]北京工业大学材料学院,北京100124

出　　处：《装备环境工程》2016年第2期8-12,共5页Equipment Environmental Engineering

摘　　要：目的研究空间原子氧辐照对不锈钢性能的影响。方法将不锈钢试样置于束流密度为2.5×10^(16)atoms/(cm^2·s)的原子氧束中进行辐照试验,最长辐照时间为300 min。研究随辐照时间增加,试样质量、光学性能、接触角、耐磨性能、耐腐蚀性能的变化。结果原子氧辐照后,不锈钢表面生成氧化物质量增加;随辐照时间增加,试样光谱反射系数呈下降趋势,太阳吸收比增加;原子氧作用导致不锈钢接触角增大,耐磨性能提高,耐腐蚀性能下降。结论得到的不锈钢原子氧环境效应数据,可为其在低轨航天器上的应用提供理论基础。Objective To study the irradiation effect of atomic oxygen （AO） on stainless steel. Methods AO irradiation test of stainless steel was conducted using an AO simulation facility with AO flux of 2.5×10^16atoms/cm^2·s and the maximum irradiation time was 300 min. The variations of mass, optical property, contact angle, wear resistance and corrosion resistance of the specimens with prolonged irradiation time were investigated. Results After AO exposure, metal oxides were found on the surface of stainless steel, leading to increase of sample mass. The spectrum reflectance of copper decreased with the increasing irradiation time, while the solar absorption ratio showed the opposite trend, which increased with increasing irradiation time. In addition, AO irradiation resulted in the increase of contact angle and wear resistance property, and meanwhile decrease of corrosion r6sistance property. Conclusion AO effect data of stainless steel was obtained, which can provide theoretical support for the application of stainless steel in low earth orbit spacecraft.

关 键 词：不锈钢 原子氧 太阳吸收比 耐腐蚀性能 

分 类 号：TJ86[兵器科学与技术—武器系统与运用工程] V11[航空宇航科学与技术—人机与环境工程]