Y-Hf co-doped AlCoCrFeNi high-entropy alloy coating with superior oxidation and spallation resistance at 1100 °C

被引：67
作者：
Lu, Jie [1 ]
Li, Ling [1 ]
Chen, Ying [2 ]
Liu, Xuanzhen [1 ]
Zhao, Xiaofeng [1 ]
Guo, Fangwei [1 ]
Xiao, Ping [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China
[2] Univ Manchester, Sch Mat, MSS Tower, Manchester M13 9PL, Lancs, England
来源：
CORROSION SCIENCE | 2021年 / 182卷
基金：
中国国家自然科学基金;
关键词：
High-entropy alloy; AlCoCrFeNi coating; Oxidation; High temperature; THERMAL-BARRIER COATINGS; BOND COAT; ISOTHERMAL OXIDATION; SLUGGISH DIFFUSION; FAILURE; OXIDE; MECHANISMS; ADDITIONS; BEHAVIOR; AL;
D O I：
10.1016/j.corsci.2021.109267
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation behavior of Y-Hf co-doped AlCoCrFeNi high-entropy alloy coating (HEA coating) at 1100 degrees C was investigated and compared with that of conventional Y-Hf co-doped NiCoCrAl alloy coating (CNA coating) in this study. First, the HEA coating exhibits an extremely low oxidation rate with an oxidation rate constant of 1.3 x 10(-2) mu m(2)/h, which is 50 % lower than that of CNA coating. Second, the HEA coating shows much better resistance to the oxide scale spallation compared with CNA coating, resulting from the lower oxidation rate and the well suppression of interface rumpling.
引用
收藏
页数：13
相关论文
共 62 条
[1]   Cyclic Oxidation Behavior of TBC Systems with a Pt-Rich γ-Ni plus γ′-Ni3Al Bond-Coating Made by SPS [J].
Audigie, Pauline ;
Selezneff, Serge ;
Rouaix-Vande Put, Aurelie ;
Estournes, Claude ;
Hamadi, Sarah ;
Monceau, Daniel .
OXIDATION OF METALS, 2014, 81 (1-2) :33-45
[2]   Influence of bond coat thickness on the cyclic rumpling of thermally grown oxides [J].
Balint, DS ;
Xu, T ;
Hutchinson, JW ;
Evans, AG .
ACTA MATERIALIA, 2006, 54 (07) :1815-1820
[3]   An analytical model of rumpling in thermal barrier coatings [J].
Balint, DS ;
Hutchinson, JW .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2005, 53 (04) :949-973
[4]  
Birks N, 2006, INTRODUCTION TO THE HIGH-TEMPERATURE OXIDATION OF METALS, 2ND EDITION, P1, DOI 10.1017/CBO9781139163903
[5]   Effects of reactive element oxides on the isothermal oxidation of β-NiAl coatings fabricated by spark plasma sintering [J].
Chen, Wenfu ;
He, Limin ;
Guo, Yi ;
Shan, Xiao ;
Li, Jianghua ;
Guo, Fangwei ;
Zhao, Xiaofeng ;
Ni, Na ;
Xiao, Ping .
SURFACE & COATINGS TECHNOLOGY, 2019, 357 :322-331
[6]   The effect of reactive element species and concentrations on the isothermal oxidation of β-NiAl coating fabricated by spark plasma sintering [J].
Chen, Wenfu ;
Shan, Xiao ;
Guo, Yi ;
Li, Jianghua ;
Zou, Zhonghua ;
Guo, Fangwei ;
Zhao, Xiaofeng ;
Xiao, Ping .
SURFACE & COATINGS TECHNOLOGY, 2019, 357 :841-848
[7]   A mechanistic understanding on rumpling of a NiCoCrA1Y bond coat for thermal barrier coating applications [J].
Chen, Y. ;
Zhao, X. ;
Bai, M. ;
Yang, L. ;
Li, C. ;
Wang, L. ;
Carr, J. A. ;
Xiao, P. .
ACTA MATERIALIA, 2017, 128 :31-42
[8]   Effect of microstructure on early oxidation of MCrAlY coatings [J].
Chen, Ying ;
Zhao, Xiaofeng ;
Xiao, Ping .
ACTA MATERIALIA, 2018, 159 :150-162
[9]   The influence of the reactive element yttrium on the stress in alumina scales formed by oxidation [J].
Christensen, RJ ;
Tolpygo, VK ;
Clarke, DR .
ACTA MATERIALIA, 1997, 45 (04) :1761-1766
[10]   Effect of thermal cycling on protective properties of alumina scale grown on thin Haynes 214 foil [J].
Chyrkin, A. ;
Mortazavi, N. ;
Halvarsson, M. ;
Gruener, D. ;
Quadakkers, W. J. .
CORROSION SCIENCE, 2015, 98 :688-698
1234567