材料工程2025，Vol.53Issue(2)：39-49,11.DOI:10.11868/j.issn.1001-4381.2024.000302
酸性盐雾腐蚀对Al-BN涂层可磨耗性能的影响
Effect of acid salt spray corrosion on abradability of Al-BN coatings
摘要
Abstract
To explore the influence of acid salt spray corrosion on the abradability behavior of Al-BN coatings,the microstructure,surface hardness,bonding strength,and abradability of Al-BN coatings prepared by atmospheric plasma spraying before and after acid salt spray corrosion for 192 h are investigated.The results show that after acidic salt spray corrosion for 192 h,the surface of the Al-BN coatings forms a corrosion dense layer composed of Al,Al2O3,NaCl,and BN with the thickness of about 300-350 μm.The variance of average hardness and average bonding strength of the corrosion-dense layer increases compared to the as-sprayed coating.During the scraping process,the weak bonding areas of the corrosion-dense layer are prone to scraping off and adhere to the friction surface of the dual blade,which causes the incursion depth ratio(IDR)values of the Al-BN coatings to change from(11.43+0.46)％before acid salt spray corrosion to(-12.02+0.38)％after acid salt spray corrosion,resulting in the abradability scraping mechanism of the Al-BN coatings changing from the mixed form of plastic deformation and adhesive wear to the mixed mechanism of plastic deformation,adhesive wear,and scraping off adhesion,the friction coefficient increasing from 0.34+0.02 before corrosion to 0.55+0.03.Therefore,the acid salt spray corrosion has a negative impact on the abradability of Al-BN coatings.关键词
铝氮化硼涂层/酸性盐雾腐蚀/可磨耗性能/大气等离子喷涂Key words
Al-BN coating/acid salt spray corrosion/abradability/atmospheric plasma spraying分类
通用工业技术引用本文复制引用
房永超,李姝,刘振,李彰,王森源,王长亮,田浩亮,韩晓涵..酸性盐雾腐蚀对Al-BN涂层可磨耗性能的影响[J].材料工程,2025,53(2):39-49,11.基金项目
国家重点研发计划项目(2023YFE0200100) （2023YFE0200100）
国家自然科学基金项目(52075508,52305224) （52075508,52305224）
中国航空发动机集团科技创新平台项目(CXPT-2023-028) （CXPT-2023-028）
