The oxidation and hot corrosion of an aluminide coating applied to a cobalt-base superalloy

被引：0
|
作者：
Yuan, F.H. [1 ]
Sun, X.F. [1 ]
Guan, H.R. [1 ]
Hu, Z.Q. [1 ]
机构：
[1] Department of Superalloys, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
来源：
International Journal of Materials and Product Technology | 2001年 / SPEC ISS. VOL.2期
关键词：
Chemical vapor deposition - Cobalt - Corrosion resistance - Oxidation - Superalloys;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A kind of aluminide coating obtained by the low pressure chemical vapor deposition process was applied to K40S, a cobalt-base superalloy used in vane application. The coating consists largely of CoAl phase. The interlayer between the coating and substrate is chromium rich M23C6 carbide containing some tungsten and cobalt. The coating not only improved the hot corrosion resistance of K40S alloy, but also decreased its high temperature oxidation rate, thereby increasing remarkably the oxide scale adherence to underlying aluminide coating. The initial oxide scale was Al2O3. An oxide mixture of Al2O3, Cr2O3 and spinel CoCr2O4 was developed afterwards and accompanied the gradual dissolution of CoAl phase due to Al depletion.
引用
下载
收藏
页码：835 / 840
相关论文
共 50 条
  • [1] The oxidation and hot corrosion of an aluminide coating applied to a cobalt-base superalloy
    Yuan, FH
    Sun, XF
    Guan, HR
    Hu, ZQ
    INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY, 2001, : 835 - 840
  • [2] Hot Corrosion and Oxidation Behavior of Pt-Aluminide and Pt-Rh-Aluminide Coatings Applied on Nickle-Base and Cobalt-Base Substrates
    Koochaki-Abkenar, Atieh
    Malekan, Ahmad
    Bozorg, Mansoor
    Nematipour, Kourosh
    METALS AND MATERIALS INTERNATIONAL, 2024, 30 (09) : 2343 - 2371
  • [3] OXIDATION AND HOT-CORROSION RESISTANCE OF COBALT-BASE SUPERALLOYS
    BELTRAN, AM
    METALS ENGINEERING QUARTERLY, 1970, 10 (01): : 51 - &
  • [4] High-temperature oxidation behavior of aluminide coatings on a new cobalt-base superalloy in air
    Liu, PS
    Liang, KM
    Gu, SR
    CORROSION SCIENCE, 2001, 43 (07) : 1217 - 1226
  • [5] Cobalt-Base Superalloy Coating Using GTAW Process
    Royse, Fernanda de Souza
    Bastos, Ivan Napoleao
    Meneses Costa, Hector Reynaldo
    FUNCTIONAL AND STRUCTURAL MATERIALS II, 2013, 758 : 41 - +
  • [6] Preparation and oxidation behavior of NiCrAlYSi coating on a cobalt-base superalloy K40S
    Zhang, K.
    Wang, Q. M.
    Sun, C.
    Wang, F. H.
    CORROSION SCIENCE, 2008, 50 (06) : 1707 - 1715
  • [7] ROLE OF CHLORIDE IN HOT CORROSION OF COBALT-BASE ALLOYS
    STRINGER, J
    NAGARAJAN, V
    WHITTLE, DP
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (08) : C316 - C316
  • [8] Cyclic oxidation behavior of a cobalt aluminide coating on Co-base superalloy AMS 5608
    Lee, JW
    Kuo, YC
    SURFACE & COATINGS TECHNOLOGY, 2005, 200 (5-6): : 1225 - 1230
  • [9] Influence of NiCoCrAlY and diffusion aluminide coating on oxidation and hot corrosion of a Ni-based superalloy
    Xie, Dongbai
    Zhu, Shenglong
    Dai, Wenjun
    Wang, Fuhui
    2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM, 2007, 546-549 : 1739 - +
  • [10] Influence of orientation on corrosion behavior of directionally solidified cobalt-base superalloy
    Ma, L. N.
    Zhang, Z.
    MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2015, 66 (08): : 803 - 810
12345