High Temperature Cyclic Oxidation Behaviour Ternary Ni-Al-Ti Alloys doped with Ge at 1200oC
DOI:
https://doi.org/10.21776/ub.jrm.2019.010.01.11Keywords:
Ni based superalloy, cyclic oxidation, germaniumAbstract
Ni base alloys are widely used for high temperature applications, such as pressure vessel , turbine blade. Ni-base alloys possess oxidation resistance, creep resistance, fatigue resistance, the stability of the microstructure and good mechanical properties at elevated temperatures. The Ni-Al-Ti alloys were melted in a single arc melting furnace under ultra high argon atmosphere.  Cyclic oxidation of the alloys was performed in air furnace at 1200 °C temperature for 25 cycles Each cycle consisted of 1 hr heating at 1200°C in an alumina tube furnace followed by 30 min cooling at room temperature. The results show that the higher addition of Ge element content can improve the mechanical properties and oxidation resistance of Ni based alloys. X-ray diffraction examination showed that the compounds were formed on the alloy after smelting Ni3Al, Ni3Ti, Ni3Ge, Ni and Ni2AlTi. While the oxide on the alloy after oxidizing to form a compounds NiO, NiTiO3, GeO2, and TiO2. In the SEM-EDS examination showed that the composition of Ge formed more dominant in the area under the element Ni oxide layer. The higher the Ge element content in the alloy has improved the resistance of the alloy indicated by the thin layer of oxide formed on the surface of the alloy.References
ROGER C. REED, The Superalloy Fundamental And Applications, 2006.
KHALID, F. A., HUSSAIN, N. and SHAHID, K. A. (1999) ‘Microstructure and morphology of high temperature oxidation in superalloys’, Materials Science and Engineering A, pp. 87-94. doi: 10.1016/S0921-5093(98)01181-2.
Z. QIN et al., “Improving corrosion resistance of nickel-aluminum bronzes by surface modification with chromium ion implantation,†Surf. Coatings Technol., vol. 334, no. August 2017, pp. 402–409, 2018.
O. P. GUPTA, D. MUDGAL, D. PURI, and S. PRAKASH, “High temperature cyclic oxidation of Ni based superalloys at 900 ° C in air,†vol. 2, no. March 2016, pp. 486–492, 2012.
F. LI, S. LI, Y. WU, L. JIANG, and Y. HAN, “Thermal cycle fatigue behaviors of a single crystal Ni3Al base alloy,†Procedia Eng., vol. 27, no. 2011, pp. 1141–1149, 2012.
BASUKI, EDDY AGUS, “Paduan Logam Untuk Aplikasi Temperatur Tinggi dan Penghematan Energiâ€, 2016, Bandung: Penerbit ITB.
L. LI, M. MAHMOODIAN, C. Q. LI, and D. ROBERT, “Effect of corrosion and hydrogen embrittlement on microstructure and mechanical properties of mild steel,†Constr. Build. Mater., vol. 170, pp. 78–90, 2018.
M. FONTANA, “Mars Fontana-Corrosion Engineering (Mcgraw-Hill International Editions)-McGraw-Hill Companies (1986).pdf.†1986.
W. WANG et al., “Kinetics of plasma oxidation of germanium-tin (GeSn),†Appl. Surf. Sci., vol. 425, pp. 95–99, 2017.
M. E. BROWN and P. K. GALLAGHER, Principles and Practice, vol. 1. 1998.
D. SABER, I. S. EMAM, and R. ABDEL-KARIM, “High temperature cyclic oxidation of Ni based superalloys at different temperatures in air,†J. Alloys Compd., vol. 719, pp. 133–141, 2017.
DIETER, G. E. (1962) Mechanical metallurgy, Journal of the Franklin Institute. doi: 10.1016/S0016-0032(62)91145-6, pp. 358-359.
P. JOZWIK, W. POLKOWSKI, and Z. BOJAR, “Applications of Ni3Al based intermetallic alloys-current stage and potential perceptivities,†Materials (Basel)., vol. 8, no. 5, pp. 2537–2568, 2015.
E.A. BASUKI,E PANGESTU, F. ADAM, A.A. KORDA, M.FADLY and D.H, PRAJITNO, Solid Phase Oxidation Process-High Temperatute Oxidation Resistance of Ni-Based Alloy, Oxidation Communication, 41,No.4,P.465-746, 2018
DEEPA MUDGAL and SATYA PRAKASH, High Temperature Oxidation of Ni Base superalloy at 900oC Vo.2. April, p.486-492, 2012
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