Microstructure and Hot Corrosion Properties of Surface Plasma Alloyed Ti2AlNb-Based Alloys

Abstract:

Some unsatisfactory characteristics of Ti2AlNb-based alloys restrict its practical application, such as the insufficient high temperature oxidation, corrosion resistance and poor wear resistance. The double glow plasma surface chromizing can improve their wear resistance, however the hot corrosion properties of surface plasma chromised Ti2AlNb-based alloys were little investigated. The microstructure, composition and surface hot corrosion morphologies of Ti2AlNb-based alloy were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD of alloying layer indicated that the Cr-Nb alloy phase was the main composition, including the compact and uniform Cr2Nb phase, which was benefit to improve the hot corrosion properties of alloy.

• Periodical: Advanced Materials Research (Volume 744)
• Pages: 388-391
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.744.388
• Online since: August 2013
• Authors: Ye Chao Hang, Hong Yan Wu, Shi Juan Li
• Keywords: Hot Corrosion Properties, Plasma Surface Alloying, Surface Chromising

References

[1] Seung Jin Yang, Soo Woo Nam, et al: Journal of Alloys and Compound, 2004, 368: 197-210.

[2] Jihua Peng, Yong Mao, et al: Materials Science and Engineering, 2001, A299: 75-80.

[3] Seung Jin Yang, Soo Woo Nam, et al: Intermetallics, 2004, 12: 261-274.

[4] Yuming Xiong, Shenglong Zhu, and Fuhui Wang: Surface and coatings technology, 2005, 197: 322-326.

[5] Wen-ping Liang, Zhong Xu, et al: Surface and coatings Technology, 2006, 126-129.

[6] Kai Zhang, Zhengwei Li, and Wei Gao: Materials Letters, 2002, 57: 834-843.

[7] XU Zhong , GAO Yuan: Journal of Advanced Materials, 2002, 34(3): 32-38.

[8] Xu Zhang, Xishan Xie, et al: Surface and Coatings Technology, 2000, 131: 378-382.

[9] Jiang C, Sordelet D J, Gleeson B: Acta materialia, 2006, 54: 1147-1154.

[10] G.S. Fox-Rabinovicha, D.S. Wilkinson, et al: Intermetallics, 2006, 14: 189-197.

[11] XU Zhong , GAO Yuan: Journal of Advanced Materials, 2002, 34(3): 32-38.

[12] Hwan Gyo Jung, Dong Ju Jung, et al: Surface and Coatings Technology, 154(2002), 75–81.

[13] Z. Yao, M. Marek: Materials Science and Engineering A, 1995(192/193): 994-1000.

[14] Chr. Herziga, T. Przeorskia, et al: Intermetallics, 2001, 9: 461–472.

[15] C. woodward and S. kajihara. Acta mater. 1999, 47(14): 3793-3798.

[16] X.Y. Li and S. Taniguchi. Intermetallics , 2005, 13(7): 683-693.

[17] Bong Goo Kim, Gil Moo Kim, et al: Scripta Metallurgica and Materialia, 1995, 33(7): 1117-1126.