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航天器流体回路工质与材料相容性试验研究

Experimental study of the compatibility between bearing material and working fluid in the fluid loop of spacecraft
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摘要 文章针对航天器流体回路工质与材料相容性的研究需求,对材料与工质全氟三乙胺的相容性进行试验分析,系统表征了试验前后工质的外观、酸值、馏出物体积分数、运动黏度、主成分含量等特性,同时测试了金属材料试验前后的质量变化、腐蚀速率、微观形貌,以及非金属材料试验前后的力学性能、质量变化,对测试结果进行了综合分析。结果表明铝合金5A06、7A04、1035以及不锈钢316L、钛合金TC11、聚酰亚胺/二硫化钼/聚四氟乙烯模压复合材料、氮化硅与工质全氟三乙胺为I级相容,可为航天器流体回路相容性设计与使用提供参考。 The compatibility between the work fluid and the bearing material in the fluid loop of the spacecraft is studied experimentally in this paper.The compatibility experiment between several materials and N(C2F5)3 is carried out.The appearance,the acid value,the volume fraction of the distillate,the kinematic viscosity,and the essential components of N(C2F5)3 are characterized before and after the experiment.Meanwhile,the concerned properties are the mass,the corrosion rate,the surface topography of the metallic material,as well as the mass,the mechanical properties of the non-metallic materials.From the integrated analysis of the test results,it is shown that the compatibility is acceptable to the highest level between N(C2F5)3 and the aluminum alloys 5A06,7A04,1035,the stainless steel 316L,the titanium alloy TC11,the composites PI/MoS2/F4,and Si3N4.The study can provide some reference for the compatibility design of fluid loop for spacecraft applications.
作者 李振宇 韩海鹰 方涛 曾光耀 LI Zhenyu;HAN Haiying;FANG Tao;ZENG Guangyao(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;Research Center for Liquid Propellant CASC,Beijing 100074,China;Wuhan Chemical Industry Co,Ltd,Wuhan 430000,China)
出处 《航天器环境工程》 2019年第5期475-479,共5页 Spacecraft Environment Engineering
基金 国家重大科技专项工程
关键词 流体回路 工质 材料相容性 全氟三乙胺 金属腐蚀 质量变化 试验研究 fluid loop system work fluid material compatibility N(C2F5)3 metallic corrosion mass change experimental study
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