Enhancement of High Temperature Oxidation Resistance of Ti48Al5Nb Alloy via Anodic Anodization in NH4F Containing Ethylene Glycol

doi:10.11902/1005.4537.2018.188

Journal of Chinese Society for Corrosion and protection

2019, Vol. 39

Issue (2): 96-105 DOI: 10.11902/1005.4537.2018.188

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Enhancement of High Temperature Oxidation Resistance of Ti48Al5Nb Alloy via Anodic Anodization in NH₄F Containing Ethylene Glycol

Junjie XIA¹,Hongzhi NIU²,Min LIU³,Huazhen CAO¹,Guoqu ZHENG¹,Liankui WU¹(

)

1. College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
2. College of Materials Science and Engineering, Northeast University, Shenyang 110819, China
3. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China

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Abstract

Ti48Al5Nb alloy was electrochemically anodized in electrolyte of ethylene glycol with NH₄F to prepare anodic films containing fluorine and aluminum. The influence of anodization treatment on the oxidation behavior, the composition and structure of the oxide scale of the anodized Ti48Al5Nb alloy were then characterized. Results shown that a continuous and dense Al₂O₃ oxide scale will generate on the anodized Ti48Al5Nb alloy after high temperature oxidation. And this oxide scale has good adhesion with the substrate, therefore can efficiently prevent the inward diffusion of oxygen, resulting the enhanced high temperature oxidation resistance. After oxidation at 1000 ℃ for 100 h, the weight gain of the anodized Ti48Al5Nb alloy was dramatically decreased from 26.73 mg·cm^-2 for the bare Ti48Al5Nb alloy to 1.18 mg·cm^-2. Moreover, it is shown that anodization also changes the oxidation mechanism, leading to the disappearance of the Nb-enriched layer at the interface between the oxide scale and substrate. The enhanced high temperature oxidation of the anodized Ti48Al5Nb is derived from the halogen effect based on the fluorine compounds existed in the anodized film.

Key words: TiAl alloy anodization halogen effect high temperature oxidation

Received: 27 December 2018

ZTFLH:

TG174.4

Fund: Supported by National Natural Science Foundation of China(51501163);Supported by National Natural Science Foundation of China(51301140);Natural Science Foundation of Zhejiang Province(LY18E010005);Talent Project of Zhejiang Association for Science and Technology(2017YCGC015)

Corresponding Authors: Liankui WU E-mail: lkwu@zjut.edu.cn

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	Junjie XIA
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	Huazhen CAO
	Guoqu ZHENG
	Liankui WU

Cite this article:

Junjie XIA,Hongzhi NIU,Min LIU,Huazhen CAO,Guoqu ZHENG,Liankui WU. Enhancement of High Temperature Oxidation Resistance of Ti48Al5Nb Alloy via Anodic Anodization in NH₄F Containing Ethylene Glycol. Journal of Chinese Society for Corrosion and protection, 2019, 39(2): 96-105.

URL:

https://www.jcscp.org/EN/10.11902/1005.4537.2018.188 OR https://www.jcscp.org/EN/Y2019/V39/I2/96

Fig.1 Top-surface SEM images of Ti48Al5Nb alloy before (a, e) and after anodizing for 1 h at 10 V (b, f), 20 V (c, g), and 30 V (d, h) and EDS results of constituent elements in the points marked in Fig.1a~d (i~l), respectively

Fig.2 Survey (a) and refined XPS spectra of Ti 2p (b), Al 2p (c), Nb 3d (d), F 1s (e) and O 1s (f) for Ti48Al5Nb alloy anodized at 30 V for 1 h

Fig.3 Oxidation kinetics of bare and anodized Ti45Al5Nb alloy at 1000 °C in air (the insets show the optical images of the specimens after oxidation for 100 h)

Fig.4 XRD patterns of Ti48Al5Nb alloy without (a) and with anodizing at 10 V (b), 20 V (c) and 30 V (d) after oxidation at 1000 °C for 100 h

Fig.5 Top-surface SEM images of Ti48Al5Nb alloy without (a) and with anodizing at 10 V (b~d), 20 V (e, f ) and 30 V (g, h) after oxidation at 1000 °C for 100 h

Fig.6 Top-surface SEM images of Ti48Al5Nb alloy pre-anodized at 30 V for 1 h after oxidation at 1000 ℃ for 1 h (a, b) and 3 h (c, d)

Fig.7 Cross-sectional SEM image of flat (a) and pit (c) areas of Ti48Al5Nb alloy after oxidation at 1000 ℃ for 100 h and corresponding element distribution mappings of Al, Ti, Nb and O in the zones marked in Fig.7a (b) and Fig.7c (d), respectively

Fig.8 Cross-sectional SEM image of Ti48Al5Nb alloy with pre-anodizing at 10 V after oxidation at 1000 ℃ for 100 h (a), corresponding element depth profiles along the marked line (b), and distribution mappings of Al, Ti, Nb and O in the marked rectangle zone (c)

Fig.9 Cross-sectional SEM image of Ti48Al5Nb alloy with anodizing at 30 V after oxidation at 1000 ℃ for 100 h (a), corresponding elements depth profiles along the marked line (b), and distribution mappings of Al, Ti, Nb and O in the marked rectangle zone (c)

Fig.10 Survey (a) and refined XPS spectra of Ti 2p (b), Al 2p (c), Nb 3d (d), and O 1s (e) for Ti48Al5Nb alloy with anodizing at 30 V after oxidation at 1000 ℃ for 100 h

[1]	Clemens H, Mayer S. Design,processing, microstructure, properties, and applications of advanced intermetallic TiAl alloys [J]. Adv. Eng. Mater., 2013, 15: 191
[2]	Zhang M M, Xin L, Ding X Y, et al. Corrosion resistance of alternately multilayered coating Ti/TiAlN on Ti-alloy Ti-6Al-4V beneath a solid NaCl film in atmosphere of water vapor and oxygen at 600 °C [J]. J. Chin. Soc. Corros. Prot., 2017, 37: 29
[2]	张明明, 辛丽, 丁学勇等. 600 ℃/NaCl-H2O-O2协同环境中Ti/TiAlN多层涂层的耐蚀行为 [J]. 中国腐蚀与防护学报, 2017, 37: 29
[3]	Peng X M, Xia C Q, Wang Z H, et al. Development of high temperature oxidation and protection of TiAl-based alloy [J]. Chin. J. Nonferrous Met., 2010, 20: 1116
[3]	彭小敏, 夏长清, 王志辉等. TiAl基合金高温氧化及防护的研究进展 [J]. 中国有色金属学报, 2010, 20: 1116
[4]	Pflumm R, Friedle S, Schütze M. Oxidation protection of γ-TiAl-based alloys-A review [J]. Intermetallics, 2015, 56: 1
[5]	Dai J J, Zhu J Y, Chen C Z, et al. High temperature oxidation behavior and research status of modifications on improving high temperature oxidation resistance of titanium alloys and titanium aluminides: A review [J]. J. Alloy. Compd., 2016, 685: 784
[6]	Pflumm R, Donchev A, Mayer S, et al. High-temperature oxidation behavior of multi-phase Mo-containing γ-TiAl-based alloys [J]. Intermetallics, 2014, 53: 45
[7]	Wu Y, Hagihara K, Umakoshi Y. Influence of Y-addition on the oxidation behavior of Al-rich γ-TiAl alloys [J]. Intermetallics, 2004, 12: 519
[8]	Taniguchi S, Kuwayama T, Zhu Y C, et al. Influence of silicon ion implantation and post-implantation annealing on the oxidation behaviour of TiAl under thermal cycle conditions [J]. Mater. Sci. Eng., 2000, A277: 229
[9]	Li X Y, Taniguchi S, Matsunaga Y, et al. Influence of siliconizing on the oxidation behavior of a γ-TiAl based alloy [J]. Intermetallics, 2003, 11: 143
[10]	Shida Y, Anada H. The effect of various ternary additives on the oxidation behavior of TiAl in high-temperature air [J]. Oxid. Met., 1996, 45: 197
[11]	Shen Y, Ding X F, Wang F G, et al. High-temperature oxidation resistance of high-Nb TiAl-based alloy [J]. J. Chin. Soc. Corros. Prot., 2004, 24: 203
[11]	沈勇, 丁晓非, 王富岗等. 高铌TiAl基合金高温抗氧化性能研究 [J]. 中国腐蚀与防护学报, 2004, 24: 203
[12]	Lin J P, Zhao L L, Li G Y, et al. Effect of Nb on oxidation behavior of high Nb containing TiAl alloys [J]. Intermetallics, 2011, 19: 131
[13]	Varma S K, Chan A, Mahapatra B N. Static and cyclic oxidation of Ti-44Al and Ti-44Al-xNb alloys [J]. Oxid. Met., 2001, 55: 423
[14]	Jiang H R, Hirohasi M, Lu Y, et al. Effect of Nb on the high temperature oxidation of Ti-(0-50 at.%)Al [J]. Scr. Mater., 2002, 46: 639
[15]	Wang D S, Tian Z J, Chen Z Y, et al. High-temperature oxidation resistance coatings on TiAl alloy surface [J]. J. Chin. Soc. Corros. Prot., 2009, 29: 1
[15]	王东生, 田宗军, 陈志勇等. TiAl合金表面抗高温氧化涂层研究 [J]. 中国腐蚀与防护学报, 2009, 29: 1
[16]	Shen M L, Zhu S L, Wang F H. Formation kinetics of multi-layered interfacial zone between γ-TiAl and glass-ceramic coatings via interfacial reactions at 1000 °C [J]. Corros. Sci., 2015, 91: 341
[17]	Schütze M. The role of surface protection for high-temperature performance of TiAl alloys [J]. JOM, 2017, 69: 2602
[18]	Friedle S, Pflumm R, Seyeux A, et al. ToF-SIMS study on the initial stages of the halogen effect in the oxidation of TiAl alloys [J]. Oxid. Met., 2018, 89: 123
[19]	Friedle S, Laska N, Braun R, et al. Oxidation behaviour of a fluorinated beta-stabilized γ-TiAl alloy with thermal barrier coatings in H2O-and SO2-containing atmospheres [J]. Corros. Sci., 2015, 92: 280
[20]	Donchev A, Richter E, Schütze M, et al. Improving the oxidation resistance of TiAl-alloys with fluorine [J]. J. Alloy. Compd., 2008, 452: 7
[21]	Schütze M, Schumacher G, Dettenwanger F, et al. The halogen effect in the oxidation of intermetallic titanium aluminides [J]. Corros. Sci., 2002, 44: 303
[22]	Donchev A, Gleeson B, Schütze M. Thermodynamic considerations of the beneficial effect of halogens on the oxidation resistance of TiAl-based alloys [J]. Intermetallics, 2003, 11: 387
[23]	Mo M H, Wu L K, Cao H Z, et al. Improvement of the high temperature oxidation resistance of Ti-50Al at 1000 ℃ by anodizing in ethylene glycol/BmimPF6 solution [J]. Surf. Coat. Technol., 2016, 286: 215
[24]	Mo M H, Wu L K, Cao H Z, et al. High temperature oxidation behavior and anti-oxidation mechanism of Ti-50Al anodized in ionic liquid [J]. Surf. Coat. Technol., 2016, 307: 190
[25]	Mo M H, Wu L K, Cao H Z, et al. Halogen effect for improving high temperature oxidation resistance of Ti-50Al by anodization [J]. Appl. Surf. Sci., 2017, 407: 246
[26]	Wu L K, Xia J J, Cao H Z, et al. Improving the high-temperature oxidation resistance of TiAl alloy by anodizing in Methanol/NaF solution [J]. Oxid. Met., 2018, 90: 617
[27]	Norasetthekul S, Park P Y, Baik K H, et al. Dry etch chemistries for TiO2 thin films [J]. Appl. Surf. Sci., 2001, 185: 27

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