HCPEB表面改性对镀铝CoCrAlY涂层显微组织及氧化性能的影响

doi:10.11896/cldb.18060086

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Abstract CoCrAlY coating was prepared on Ni-base superalloy substrate by atmospheric plasma spraying (APS) technology. Then pure aluminum film was evaporated on CoCrAlY coating by EBVD technology, and finally the modification of pure aluminum film was carried out by high-current pulsed electron beam (HCPEB) with various incident energy changed by changing the bombardment times. The high-temperature oxidation resistance test of aluminized CoCrAlY coating was conducted under isothermal conditions. The surface microstructure and oxidation behavior of aluminized coating after HCPEB bombardment were observed, and the effect of HCPEB bombardment times on the surface phase composition of the coating was studied. Compared with APS sprayed coating, the oxidation kinetic curve of the modified coating was closer to the parabola, and the weight increment was slow at the later period of oxidation. XRD results revealed that the phase composition of the coating after bombardment was basically the same no matter how many bombardment times would be. The more bombardment pulse times brought about higher α-Al₂O₃ content. SEM characterization results showed that the surface of modified coating was remelted and formed interconnected cell-like raised structures. Al₂O₃ and Co/Cr-O oxides began to appear after 0.5 h oxidation. After 20 h oxidation, lateral continuous dense α-Al₂O₃films were formed. After 100 h oxidation, spinel oxides were generated in a small range, and the α-Al₂O₃ film still had a protective effect.

Key words： thermal barrier coating high-current pulsed electron beam thermally grown oxide oxidation behavior phase composition micromorphology

Published: 19 June 2019

CLC number:

TG154.5

Fund:This work was financially supported by the National Natural Science Foundation of China (51501222) and the Fundamental Research Funds for the Central Universities (3122016L013).

About author:: Zhiyong Hanreceived his Ph.D. degree in materials science and engineering from the University of Science and Technology Beijing (USTB) in 2004. He is currently a professor of the CAUC. His research interests focus on the interface structure and properties of mate-rials, mainly engaged in theoretical calculations and performance analysis. He has participated in 4 National Natural Science Fund projects and 1 CAAC project and published more than 30 journal papers as the first author, more than 10 articles were SCI, EI search.Jianting Zhoureceived his Ph.D. degree in intelligent structure from Chongqing University in 2007. He is a professor and doctoral advisor of Chongqing Jiaotong University. His research interests are bridge nondestructive testing, reinforcement and health monitoring.

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	HAN Zhiyong
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Cite this article:

HAN Zhiyong,SHI Wenxin,WANG Zhe, et al. Impact of HCPEB Surface Modification on Microstructure and Oxidation Properties of Aluminized CoCrAlY Coating[J]. Materials Reports, 2019, 33(14): 2392-2396.

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http://www.mater-rep.com/EN/10.11896/cldb.18060086 OR http://www.mater-rep.com/EN/Y2019/V33/I14/2392

1 Liu D D, Tang D P. Journal of Chongqing University of Technology (Na-tural Science), 2018, 32(3), 135(in Chinese).
刘冬冬, 唐达培. 重庆理工大学学报(自然科学), 2018, 32(3),135.
2 Kang Y X, Bai Y, Liu K, et al. Rare Metal Materials and Engineering, 2017, 46(1),282(in Chinese).
亢永霞, 白宇, 刘琨,等. 稀有金属材料与工程, 2017, 46(1),282.
3 Tomimatsu T, Zhu S, Kagawa Y. Acta Materialia, 2003, 51(8), 2397.
4 Gupta M, Markocsan N, Rocchio-Heller R, et al. Journal of Thermal Spray Technology, 2018, 27(3),402.
5 Guo X, Lu Z, Jung Y G, et al. Metallurgical & Materials Transactions E, 2016, 3(2), 64.
6 Evans A G, Mumm D R, Hutchinson J W, et al. Progress in Materials Science, 2001, 46(5),505.
7 Zhou H H, Song P, Liao H X, et al. Material Review A:Review Papers, 2016, 30(4),81(in Chinese).
周会会, 宋鹏, 廖红星,等. 材料导报:综述篇, 2016, 30(4),81.
8 Li Y, Li C J, Zhang Q, et al. Journal of Thermal Spray Technology, 2010, 19(1-2),168.
9 Aygun A, Vasiliev A L, Padture N P, et al. Acta Materialia, 2007, 55(20),6734.
10 Drexler J M, Shinoda K, Ortiz A L, et al. Acta Materialia, 2010, 58(20), 6835.
11 Wu Y N, Ke P L, Sun C, et al. Acta Metallurgica Sinica, 2004, 40(5),541(in Chinese).
武颖娜, 柯培玲, 孙超,等. 金属学报, 2004, 40(5), 541.
12 Guo H, Xu H, Bi X, et al. Materials Science & Engineering A, 2002, 325(1-2), 389.
13 Movchan B A, Yakovchuk K Y. Surface & Coatings Technology, 2004, 188(1), 85.
14 Han Z Y, Han J. Journal of Hebei Normal University (Natural Science Edition), 2017, 41(2), 134(in Chinese).
韩志勇, 韩剑. 河北师范大学学报(自然科学版), 2017, 41(2),134.
15 Zhang X F, Zhou K S, Liu M, et al. Journal of Inorganic Materials, 2017, 32(9),973(in Chinese).
张小锋, 周克崧, 刘敏,等. 无机材料学报, 2017, 32(9), 973.
16 Cai J, Ji L, Yang S Z, et al. Science Bulletin, 2013, 58(20), 2507.
17 Liu Y. Surface modification of NiCrAlY coating irradiation by high current pulsed electron beam. Master's Thesis, Dalian University of Technology, China, 2012(in Chinese).
刘越. 强流脉冲电子束辐照NiCrAlY粘结层表面改性.硕士学位论文,大连理工大学, 2012.
18 Zhao T J, Gao B, Tian X M, et al. Chinese Journal of Vacuum Science and Technology, 2008, 28(1),11(in Chinese).
赵铁钧, 高波, 田小梅,等. 真空科学与技术学报, 2008, 28(1),11.
19 Gao B, Gao C, He J D, et al. Surface Technology, 2017, 46(7),156(in Chinese).
高波, 高超, 何吉东,等. 表面技术, 2017, 46(7),156.
20 Evans U R. Corrosion and oxidation of metals, China Machine Press, UK,1976.
21 Wang S. Oxidation behavior of plasma sprayed thermal barrier coatings. Ph.D. Thesis, Dalian University of Technology, China, 2006(in Chinese).
王爽. 等离子喷涂热障涂层的氧化行为. 博士学位论文, 大连理工大学, 2006.
22 Chai L J, Zhou Z M, Xiao Z P, et al. Science China Technological Sciences, 2015, 58(3),462.
23 Han Z Y, Han J, Jing Z Z. Transactions of the China Welding Institution, 2016, 37(11),31(in Chinese).
韩志勇,韩剑, 靖珍珠. 焊接学报, 2016, 37(11),31.