Research on Properties of Amorphous Cr-C Alloy Coating in Crystallization Evolution

Abstract:

Amorphous Cr–C alloy coating was prepared by electrodepositing. The microhardness of the coating was tested after annealing from 100°C to 800°C and the crystallization evolution was studied by the analysis of X-ray diffraction (XRD) and differential scanning caborimetry (DSC). The results showed that the crystallization evolution of the coating began at 300°C and finished around 450°C, and intermetallic compound Cr₇C₃ and Cr₂₃C₆ appeared when heat treatment temperature reached around 600°C. The microhardness, corrosion resistance as well as the adhesion of the coating all increased first with the temperature and then dropped until it attained the proper values. The microhardness reached the maximum of 1610HV_0.025 at 600°C. While the corrosion resistance and the adhesion force attained the peak value at about 400°C.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 1175-1180
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.1175
• Online since: June 2012
• Authors: Guo Liang Li, Xiao Hua Jie, Bi Xue Yang
• Keywords: Amorphous Coating, Cr-C Alloy, Crystallization, Property

References

[1] Guan Shan, Zhang Qi , Journal of Materials Protection, 2000, 33(3): 1-3.

[2] Gao Yuan-cheng, Journal of Materials Protection, 1990, 23(1): 68-72.

[3] Dubpernell G A, Plating and Surface Finishing, 1984, 71 (6): 84-92.

[4] DU Bian-che. Amorphous plating method and application [M] Beijing: Beijing aerospace university press, 1992, 196-202.

[5] Tsai Rung-ywan, Wu Shltln-tyah, J Electrochem Soc, 1991, 138(9): 2622-2630.

[6] R. Przeniosl, J. Wagner, H. Natter,R. Hempelmann,W. Wagner, Journal of Alloys and Compounds 2001，328 (8): 259–263.

[7] AN Bai-gang, ZHAO Guo-peng, Journal of Materials Protection, 2002, 35(4): 15-18.

[8] James H L, Plating and Surface Finishing, 1999, 86(11): 40-42.

[9] CHU Gui-wei, CHEN Wei, AISC Techniques, 2006, 26(5): 26-30.

[10] WANG Xian-you, JIANG Han-ying, GUO Bing-kun, Journal of Central South University of Technology, 1995, 6(26): 826-830.

[11] Car B H, Austin L G, Herbert A L Jr, Appl Surf Sci, 1987, 28: 224-232.

[12] HE Xiang-zhu, GONG Zhu-qing, JIANG Han-ying, The Chinese Journal of Nonferrous Metals, 1999, 9(3): 646-652.

[13] ZENG Zhi-xiang, WANG Li-ling, LIANG Ai-min, Electrochemical Acta, 2006, 52(38): 1366- 1373.

[14] AN Bai-gang, ZHAO Guo-peng, Corrosion Science and Protection Technology, 2001, 13(3): 180-184.

[15] Denevn B A, Lalvani S B, J Appl Electrochem, 1992(22)341-349.

[16] WANG Xian-you, Journal of Materials Protection, 1996, 29(11): 3-8.

[17] Car B H，Douglas A A，Stevep J B，J Vac Sci Technol, 1986, 4(1): 26-30.

[18] Hoshino S, Laitinen Herbert H. A，J Electrochem Soc, 1986, 133(4): 681-693.