扩散制度对镍基高温合金双相铂铝涂层的影响  

Influence of diffusion regimes on duplex platinum-aluminum coating on nickel based superalloy

作　　者：司艳 吴业琼 晁国涛 李洁 黄璇璇 郭双全 李曙光 Si Yan;Wu Yeqiong;Chao Guotao;Li Jie;Huang Xuanxuan;Guo Shuangquan;Li Shuguang(Chengdu Tianxiang Powerplant Technology Institute,Chengdu Sichuan 610093,China;Cheng Du Hang Li(Group)Industrial Co.,Ltd.,Chengdu Sichuan 611936,China)

机构地区：[1]成都天翔动力技术研究院有限公司,四川成都610093 [2]成都航利(集团)实业有限公司,四川成都611936

出　　处：《金属热处理》2025年第1期332-336,共5页Heat Treatment of Metals

基　　金：四川省科技重大专项(2022ZDZX0035)。

摘　　要：采用电镀铂、真空扩散及包埋渗铝的方式制备了双相铂铝涂层,研究了不同扩散制度及退火处理对双相铂铝涂层厚度、元素含量与硬度的影响。结果表明,涂层外层Pt含量随扩散温度的升高而降低,Al含量随扩散温度的升高而缓慢升高,涂层外层硬度随扩散温度的升高而缓慢降低,中间层硬度变化不大。同时,在涂层制备后增加退火处理可以降低双相铂铝涂层外层硬度和脆性。The duplex platinum-aluminum coatings were prepared by electroplating platinum,vacuum diffusion and embedded aluminization.Effects of different diffusion and annealing treatments on the thickness,element content and hardness of the duplex platinum-aluminum coatings were studied.The results show that the Pt content of the outer layer decreases with the increase of diffusion temperature,the Al content slowly increases with the increase of diffusion temperature,the hardness of the outer layer of the coatings slowly decreases with the increase of diffusion temperature,and the hardness of the middle layer does not change much.At the same time,adding annealing treatment after coating preparation can reduce the hardness of the outer layer of the duplex platinum-aluminum coatings and decrease the brittleness of the coatings.

关 键 词：扩散制度 铂铝涂层 脆性 

分 类 号：TG172.82[金属学及工艺—金属表面处理]