Hot corrosion behavior of a NiCoCrAlY coating fabricated by laser cladding on 17-4PH stainless steel

被引:16
作者
Li, Yuxin [1 ]
Yang, Yixin [1 ]
Nie, Jinhao [1 ]
Bai, Peikang [1 ]
Liang, Zhiguo [2 ]
Wei, Shouzheng [1 ]
Cai, Jie [3 ,4 ]
Guan, Qingfeng [5 ]
机构
[1] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China
[2] Shanxi North Machine Bldg Co Ltd, Taiyuan 030009, Peoples R China
[3] Jiangsu Univ, Inst Adv Mfg & Modern Equipment Technol, Zhenjiang 212013, Jiangsu, Peoples R China
[4] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China
[5] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China
关键词
Hot corrosion behavior; NiCoCrAlY coating; Laser cladding; Molten salt; Oxide; HIGH-TEMPERATURE CORROSION; OXIDATION BEHAVIOR; MCRALY COATINGS; BASE SUPERALLOY; PREOXIDATION; RESISTANCE;
D O I
10.1016/j.engfailanal.2021.105962
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
NiCoCrAlY coatings were prepared using laser cladding technology and subjected to a continuous hot corrosion test in a eutectic Na2SO4/NaCl (75:25, wt. %/wt. %) salt at 800 degrees C in air. The corrosion kinetics curves of the NiCoCrAlY coating and the untreated substrate over 100 h of hot corrosion were compared and analyzed. The results show that in the early stage of hot corrosion, a chemical reaction that produces alkaline fusion near the oxide scale takes place at the molten salt/coating interface, causing Al2O3/Cr2O3 to form and dissolve continuously. In the late stage, a new continuous Al2O3 film is formed.
引用
收藏
页数:12
相关论文
共 35 条
[1]   Epitaxial deposition of MCrAlY coatings on a Ni-base superalloy by laser cladding [J].
Bezençon, C ;
Schnell, A ;
Kurz, W .
SCRIPTA MATERIALIA, 2003, 49 (07) :705-709
[2]  
Chase Jr M.W., 1998, NIST STANDARD REFERE
[3]   Effect of pre-oxidation on the hot corrosion of CoNiCrAlYRe alloy [J].
Chen, L-C ;
Zhang, C. ;
Yang, Z-G .
CORROSION SCIENCE, 2011, 53 (01) :374-380
[4]   Automatic remelting and enhanced mechanical performance of a plasma sprayed NiCrBSi coating [J].
Chen, Liang-Yu ;
Wang, Haiyang ;
Zhao, Cuihua ;
Lu, Sheng ;
Wang, Ze-Xin ;
Sha, Jin ;
Chen, Shujin ;
Zhang, Lai-Chang .
SURFACE & COATINGS TECHNOLOGY, 2019, 369 :31-43
[5]   Phase interaction induced texture in a plasma sprayed-remelted NiCrBSi coating during solidification: An electron backscatter diffraction study [J].
Chen, Liang-Yu ;
Xu, Tianxiang ;
Wang, Haiyang ;
Sang, Peng ;
Lu, Sheng ;
Wang, Ze-Xin ;
Chen, Shujin ;
Zhang, Lai-Chang .
SURFACE & COATINGS TECHNOLOGY, 2019, 358 :467-480
[6]   A comparative study of oxidation and hot corrosion of a cast nickel base superalloy in different corrosive environments [J].
Deb, D ;
Iyer, SR ;
Radhakrishnan, VM .
MATERIALS LETTERS, 1996, 29 (1-3) :19-23
[7]  
DENIELOU L, 1975, THERMOCHIM ACTA, V12, P209
[8]   Y-rich oxide distribution in plasma sprayed MCrAlY-coatings studied by SEM with a cathodoluminescence detector and Raman spectroscopy [J].
Gil, A. ;
Naumenko, D. ;
Vassen, R. ;
Toscano, J. ;
Subanovic, M. ;
Singheiser, L. ;
Quadakkers, W. J. .
SURFACE & COATINGS TECHNOLOGY, 2009, 204 (04) :531-538
[9]   NA2SO4-INDUCED ACCELERATED OXIDATION (HOT CORROSION) OF NICKEL [J].
GOEBEL, JA ;
PETTIT, FS .
METALLURGICAL TRANSACTIONS, 1970, 1 (07) :1943-&
[10]   The preparation and hot corrosion resistance of gradient NiCoCrAlYSiB coatings [J].
Guo, MH ;
Wang, QM ;
Ke, PL ;
Gong, J ;
Sun, C ;
Huang, RF ;
Wen, LS .
SURFACE & COATINGS TECHNOLOGY, 2006, 200 (12-13) :3942-3949