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金属学报  2013, Vol. 49 Issue (2): 229-235    DOI: 10.3724/SP.J.1037.2012.00532
  论文 本期目录 | 过刊浏览 |
DZ125合金再涂覆CoCrAlY涂层界面互扩散行为研究
秦磊,彭徽,郭洪波,宫声凯,徐惠彬
北京航空航天大学材料科学与工程学院, 北京 100191
INTER-DIFFUSION BEHAVIOR OF RECOATED CoCrAlY COATING/DZ125 DIRECTIONALLY SOLIDIFIED SUPERALLOY
QIN Lei, PENG Hui, GUO Hongbo, GONG Shengkai, XU Huibin
School of Materials Science and Engineering, Beihang Unviersity, Beijing 100191
引用本文:

秦磊,彭徽,郭洪波,宫声凯,徐惠彬. DZ125合金再涂覆CoCrAlY涂层界面互扩散行为研究[J]. 金属学报, 2013, 49(2): 229-235.
QIN Lei, PENG Hui, GUO Hongbo, GONG Shengkai, XU Huibin. INTER-DIFFUSION BEHAVIOR OF RECOATED CoCrAlY COATING/DZ125 DIRECTIONALLY SOLIDIFIED SUPERALLOY[J]. Acta Metall Sin, 2013, 49(2): 229-235.

全文: PDF(3922 KB)  
摘要: 

采用电子束物理气相沉积(EB-PVD)方法在DZ125镍基高温合金上制备了CoCrAlY涂层, 经过高温氧化扩散处理后, 通过物理方法去除不同深度的涂层, 采用相同的工艺重新制备了CoCrAlY涂层. 研究了高温扩散过程中再涂覆CoCrAlY涂层与DZ125合金基体界面的互扩散行为及涂层的高温氧化行为. 结果表明, 去除涂层的深度对再涂覆涂层与合金界面的扩散行为以及涂层的高温氧化性能有重要影响. 再涂覆涂层经高温氧化后形成的贫Al区厚度均小于首次涂覆涂层, 且去除的深度越浅, 贫Al区的厚度越薄.当涂层去除至互扩散区(IDZ)底部时, 再涂覆涂层经高温氧化后形成的IDZ厚度与首次涂覆涂层相当, 且氧化膜厚度较薄.

关键词 DZ125合金再涂覆CoCrAlY涂层互扩散    
Abstract

The thermal barrier coatings (TBCs) are widely used in gas turbines which could lower the surface operating temperature and improve the service life of the coated part component. When repair or refurbishment of these coated components, it is necessary to remove the coating and replace it with a new coatings. The CoCrAlY coatings were deposited by EB-PVD on the directionally solidified nickel-based superalloy DZ125. The coatings were removed via physical methods in varying thicknesses and recoated subsequently. The results showed that the depth of the removal had a significant impact on the inter-diffusion behavior as well as the oxidation resistance. The thickness of Al-depleted zone formed in the recoated coatings after oxidation are thinner than the first coated coatings. Moreover, the more the coating was removed, the thinner the Al-depleted zone was formed. The recoated coatings deposited on the substrate removed the entirely inter-diffusion zone (IDZ) showed the best oxidation resistance, and the IDZ formed after oxidation was similar to the first coated coatings.

Key wordsDZ125 alloy    recoate    CoCrAlY coating    inter-diffusion
收稿日期: 2012-09-11     
基金资助:

国家自然科学基金项目51071013和国家重点基础研究发展计划

作者简介: 秦磊, 男, 1986年生, 硕士生

[1] Xu H B, Guo H B. Thermal Barrier Coatings. Cambridge: Woodhead Publishing Ltd., 2011: 20


[2] Liu F S, Gong S K, Xu H B. Acta Aeronaut Astronaut Sin, 2000; 21(S1): 30

(刘福顺, 宫声凯, 徐惠彬. 航空学报, 2000; 21(S1): 30)

[3] Wang L, Wang Y, Sun X G, He J Q, Pan Z Y, Wang C H. Mater Des, 2012; 35: 505

[4] Wei Q L, Guo H B, Gong S K, Xu H B. Thin Solid Films, 2008; 516: 5736

[5] Liang T Q. PhD Dissertation, Beihang University, 2012

(梁天权. 北京航空航天大学博士学位论文, 2012)

[6] Zhang W G, Liu L, Huang T W, Zhao X B, Qu M, Yu Z H, Fu H Z. China Foundry, 2009; 6(4): 300

[7] Guo H B, Sun L D, Li H F, Gong S K. Thin Solid Films, 2008; 516: 5732

[8] Liang T Q, Guo H B, Peng H, Gong S K. Surf Coat Technol, 2011; 205: 4374

[9] Dowon S, Kazuhiro O, Tetsuo S, Shozo M. J Therm Spray Technol, 2007; 16: 954

[10] Serivalil A, Rizzi G, Bardi U. Thermal Spray. Materials Park, Ohio: ASM International, 2001: 207

[11] Goldman E H, Darolia R. US Pat, US005316866, 1994

[12] Song J X, Li S S, Xiao C B, Wen L S, Han Y F. J Mater Eng, 2002; (7): 20

(宋尽霞, 李树索, 肖程波, 闻立时, 韩雅芳. 材料工程, 2002; (7): 20)

[13] Li J P, Wu F Y, Li W G. Corros Prot, 2000; 21(6): 18

(李建平, 吴风筠, 李伟光. 腐蚀与防护, 2000; 21(6): 18)

[14] Russell N V, Wigley F, Williamson J. J Mater Sci, 2000; 35: 2131

[15] Cai Y, He S M, Li J P, Lu F. J Mater Eng, 2006; (3): 33

(蔡妍, 贺世美, 李建平, 陆峰. 材料工程, 2006; (3): 33)

[16] Reitz D, Duval S, Grasso P D, Stankowski A, Silverio F M S. US Pat, US20100247740, 2010

[17] Warnes B, Schilbe J. Surf Coat Technol, 2001; 146-147: 147

[18] Liang T Q, Guo H B, Peng H, Gong S K. J Alloys Compd, 2011; 509: 8542

[19] Liu F, Sun W R, Yang S L, Li Z, Guo S R, Yang H C, Hu Z Q. Acta Metall Sin, 2008; 44: 791

(刘芳, 孙文儒, 杨树林, 李战, 郭守仁, 杨洪才, 胡壮麒. 金属学报, 2008; 44: 791)
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