NiCrFeAl-BN涂层和NiCrFeAl-B.e涂层对磨TC11合金可磨耗性能研究  

Study on the Wearability of NiCrFeAl-BN Coating and NiCrFeAl-B.e Coating for Grinding TC11 Alloy

作　　者：王森源 丁宁 汤智慧 陈立 李彰 王长亮 房永超 田浩亮 WANG Senyuan;DING Ning;TANG Zhihui;CHEN Li;LI Zhang;WANG Changliang;FANG Yongchao;TIAN Haoliang(Product Development Department,AECC Beijing Institution of Aeronautical Materials,Beijing 100095,China;No.6 Military Representative Office in Beijing Region,Beijing 100013,China;Aviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material,AECC Beijing Institution of Aeronautical Materials,Beijing 100095,China;The Sixth Oil Production Plant of China Petroleum Changqing Oilfield Company,Yulin 718600,Shaanxi China)

机构地区：[1]中国航发北京航空材料研究院产品发展部,北京100095 [2]空装驻北京地区第六军事代表室,北京100013 [3]中国航发北京航空材料研究院航空材料先进腐蚀与防护航空科技重点实验室,北京100095 [4]中国石油长庆油田分公司第六采油厂,陕西榆林718600

出　　处：《热喷涂技术》2024年第1期48-56,共9页Thermal Spray Technology

基　　金：国家重点研发计划项目(2021YFB3702004);国家科技重大专项(2017-VII-0012-0109);国家自然科学基金资助项目(52075508)。

摘　　要：采用等离子制备NiCoCrAlY底层和YSZ中间层,火焰喷涂制备镍基氮化硼(NiCrFeAl-BN)和镍基膨润土(NiCrFeAl-B.e)面层可磨耗封严涂层。在高温超高速可磨耗试验机上进行涂层与TC11模拟叶片对磨,设置室温和600℃,不同进给速率条件,对两种涂层进行可磨耗性能评价。结果表明:进给速率对两种涂层刮削后微观形貌影响较大,但对封严层厚度影响较小。温度提高,对两种涂层破坏作用都有所增加,可磨耗性能下降。相同工况下NiCrFeAl-BN涂层的可磨耗性均优于NiCrFeAl-B.e涂层,但对磨后的叶片高度磨损比值(IDR)仍较大,在叶片叶尖电镀BN涂层后,进给速率为5μm s时,IDR由16.05%变为8.04%,起到一定保护叶片的作用。NiCoCrAlY bottom layer and YSZ intermediate layer were prepared by plasma,and nickel-based boron nitride(NiCrFeAl-BN)and nickel-based bentonite(NiCrFeAl-B.e)top wearable sealing coatings were prepared by flame spraying.Ginding the coatings against TC11 simulated blades was carried out on a high temperature super high speed test rig.The two coatings were evaluated for their abradability at room temperature and 600℃with different feed rates.The results show that the feed rate has a greater effect on the microstructure of two coatings after scraping,but has little influence on the thickness of the sealing layer.With the increase of temperature,the destructive effect of both coatings improves,and the abradability decreases.The abradability of NiCrFeAl-BN coating is better than that of NiCrFeAl-B.e coating under the same working condition,but the value of the height-dependent wear ratio(IDR)of the blades is still larger after grinding against the blades.After the blades were electroplated with the BN coating,the IDR changes from 16.05%to 8.04%with a feed rate of 5μm s,which plays a certain role in protecting the blade.

关 键 词：热喷涂 封严涂层 可磨耗性能 刮削 

分 类 号：TG174.4[金属学及工艺—金属表面处理]