Effect of Si on Hot Corrosion Resistance of CoCrAlY Coating

被引：3
|
作者：
Zhang Shuting [1 ,2 ,3 ]
Du Kaiping [1 ,2 ,3 ]
Ren Xianjing [1 ]
Shi Ji [1 ,2 ,3 ]
机构：
[1] Beijing Gen Inst Min & Met, Beijing 100070, Peoples R China
[2] Beijing Key Lab Special Coating Mat & Technol, Beijing 102206, Peoples R China
[3] BGRIMM Adv Mat Sci & Technol Co Ltd, Beijing 102206, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2017年 / 46卷 / 10期
基金：
中国国家自然科学基金;
关键词：
MCrAlSiY; coating; oxidation; hot corrosion resistance; MCRALY-COATINGS; OXIDATION; RHENIUM; IMPROVEMENT; MECHANISM; BEHAVIOR; ALLOY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The CoCrAlSiY coating was prepared by HVOF (high velocity oxygen fuel) method. The hot corrosion resistance of the CoCrAlSiY coating with different Si concentrations (Owt%, 2wt% and 5wt%) at 900 degrees C was discussed by hot salt coating method with a mixed salt of 75wt% Na2SO4+25wt% NaCl. The results show that the average corrosion penetration depth of the coating increases with the rising of temperature, while the increasing of Si concentration decreases the average corrosion penetration depth of the coating. Furthermore, CrSi, a high melting point metal silicide, is generated inside the CoCrAlSiY corrosion coating. Thus it is beneficial for improving the corrosion resistance of the coating.
引用
收藏
页码：2807 / 2811
页数：5
相关论文
共 50 条
  • [1] Effect of hot isostatic pressing on corrosion resistance of Zn-Al-Si alloy coating
    Zhou, Wen-Bin
    Yao, Zheng-Jun
    Wei, Dong-Bo
    Jiang, Qiong
    Luo, Xi-Xi
    Zhu, Jun-Mou
    Feng, Li-Xin
    [J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2013, 23 (10): : 2882 - 2889
  • [2] Effect of Si addition to improve the performance of type II and type I hot corrosion resistance of aluminide coating
    Yu, Haojun
    Fan, Qixiang
    Li, Jiayingnan
    Ma, Dezheng
    Gong, Jun
    Sun, Chao
    [J]. CORROSION SCIENCE, 2023, 212
  • [3] The Effect of Hot Corrosion and Electrochemical Corrosion on Microhardness of the Coating
    Arpit R. Patil
    S. T. Vagge
    [J]. High Temperature Corrosion of Materials, 2024, 101 : 471 - 483
  • [4] The Effect of Hot Corrosion and Electrochemical Corrosion on Microhardness of the Coating
    Patil, Arpit R.
    Vagge, S. T.
    [J]. HIGH TEMPERATURE CORROSION OF MATERIALS, 2024, 101 (03) : 471 - 483
  • [5] Effect of a sputtered TiAlCr coating on hot corrosion resistance of gamma-TiAl
    Tang, ZL
    Wang, FH
    Wu, WT
    [J]. INTERMETALLICS, 1999, 7 (11) : 1271 - 1274
  • [6] Hot corrosion behaviour of thermally sprayed CoCrAlY coating irradiated by high-current pulsed electron beam
    Cai, Jie
    Gao, Chengzuan
    Lv, Peng
    Zhang, Conglin
    Guan, Qingfeng
    Lu, Jinzhong
    Xu, Xiaojing
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 784 : 1221 - 1233
  • [7] OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING
    TANIGUCHI, S
    ASANUMA, N
    SHIBATA, T
    WANG, FH
    LOU, HY
    WU, WT
    [J]. JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1993, 57 (07) : 781 - 789
  • [8] Corrosion Resistance of Hot Dipping Al-Zn-Si and Zn-Al-Mg-Si Alloy Coating
    Li, Hui
    Liang, Jinglong
    Wang, Dongbin
    Li, Yungang
    [J]. TMS 2019 148TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS, 2019, : 1199 - 1206
  • [9] Resistance of a Mo–Si–B-Based Coating to Environmental Salt-Based Hot Corrosion
    Eric Auchter
    Matthew Taylor
    John H. Perepezko
    [J]. Oxidation of Metals, 2020, 93 : 387 - 399
  • [10] Resistance of a Mo-Si-B-Based Coating to Environmental Salt-Based Hot Corrosion
    Auchter, Eric
    Taylor, Matthew
    Perepezko, John H.
    [J]. OXIDATION OF METALS, 2020, 93 (3-4): : 387 - 399
12345