材料工程2025，Vol.53Issue(6)：44-51,8.DOI:10.11868/j.issn.1001-4381.2024.000666
NiCoCrAlYSiHf涂层退除对DSM11合金性能的影响
Effect of removal of NiCoCrAlYSiHf coatings on performance of DSM11 alloy
摘要
Abstract
NiCoCrAlYSiHf coatings are deposited on the DSM11 Ni-based superalloy substrate using arc ion plating(AIP)technology,followed by complete removal of the coatings through a chemical method.The effects of coating removal and subsequent recoating on the mechanical properties of the substrate alloy are evaluated through high-temperature creep,instantaneous tensile tests,and other mechanical testing.Scanning electron microscopy(SEM)is employed to observe and analyze the cross-sectional morphology of the substrate before and after coating removal.Results show that solution 1#effectively removes the NiCoCrAlYSiHf coating,with a mass loss of 0.1078 g after 180 minutes,achieving near-complete coating removal.After complete coating removal,the coating/substrate alloy interface and the microstructural morphology of the substrate alloy remain essentially unchanged from the original state,indicating that the removal process has no impact on the substrate alloy.During coating degradation,the coating layers detach progressively,and the mass loss of the coating correlates with reaction time,confirming this observation.Test results show that the NiCoCrAlYSiHf coating has no significant impact on the mechanical properties of the DSM11 alloy,and the coating removal has minimal effect on the high-temperature creep and instantaneous tensile performance of the substrate alloy.关键词
涂层退除/化学方法/NiCoCrAlYSiHf涂层/DSM11合金/力学性能Key words
coating removal/chemical method/NiCoCrAlYSiHf coating/DSM11alloy/mechanical property分类
金属材料引用本文复制引用
蔡妍,张涛,赵文君,牟仁德,张学军..NiCoCrAlYSiHf涂层退除对DSM11合金性能的影响[J].材料工程,2025,53(6):44-51,8.基金项目
国家科技重大专项(J2019-Ⅶ-0010-0150) （J2019-Ⅶ-0010-0150）
中国航发北京航空材料研究院院基金(KJ42250521) （KJ42250521）
