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四氧化二氮与卫星贮箱材料的长期相容性研究
李忠林1, 侯竹林2, 罗秉和2
1.北京石景山建筑材料研究所;2.北京理工大学
摘要:
本文进行了N2O4与N2O4+1%NO两种介质与TC4钛合金、304L不锈钢及二者焊件的长期相容性研究.实验中一方面对试件和介质进行了较为全面细致的检测与分析,得出了一级相容性数据,另一方面对浸泡后试件进行了XPS深度剖析,初步阐明了TC4与304L的抗蚀机理.
关键词:  二氧化氮  钛合金  不锈钢  焊接  相容性
DOI:
分类号:
基金项目:
A STUDY ON LONG TERM COMPATIBILITY OF THE NITROGEN TETROXIDE WITH THE SATELLITE TANKAGE MATERIALS
1.Shi Jing Shan Institute of Construction Material, Beijing;2.Beijing Institute of Technology
Abstract:
The long term compatibility of both N2O4 and N2O4 + 1%NO with titanium alloy(TC4), stainless steel(304L)and welded TC4/304L was studied in this paper.First, the determination of the specimens and the assay of the media were carefully completed in the experiment, and the first-class compatibility data was obtained; Second, the anticorrosive mechanism of TC4 and 304L was initially understood through the XPS depth profiles of the corroded specimens.
Key words:  Nitrogen dioxide  Titanium alloy  Stainless steel  Welding  Compatibility