EFFECT OF TREATMENT SOLUTION ON THE MICROSTRUCTURE AND MICROHARDNESS OF TERNARY Ni-Al-Nb ALLOY DOPED WITH TITANIUM
Keywords:
Ni base supperalloy, Ni-Al-Nb, Aging, Effects of Titanium elementAbstract
EFFECT OF TREATMENT SOLUTION ON THE MICROSTRUCTURE AND MICROHARDNES OF TERNARY Ni-Al-Nb ALLOY DOPED WITH TITANIUM. Nickel-based superalloys have been widely used in various applications, which require high strength at high temperatures. Most types of these superalloys is age-hardenable because they have γ’ particles' chemical composition Ni3(Al, Ti) in γ’-phase matrix. This research will be used alloy Ni-Al-Nb added alloying elements Ti. This research was conducted to study the mechanical properties, microstructure conditions in some alloys Ni-Al-Nb added distinction Titanium element (0,5% and 1% Ti) using the method of aging temperature variation performed at a temperature of 650 °C,700 °C and 750 °C with a holding time 4 hours and air cooling. Tests were conducted to determine the characterization of the specimen includes testing metallographic optical microscope, Rockwell hardness C and SEM- EDS,XRD. Results obtained from this research that addition of titanium element affecting the hardness values as well as the results of the cast, solution treatment and aging process results. The 1% Titanium content can affect the gamma prime coarsening and make the grain on the microstructure result smooth.
Downloads
References
S. Antonov, M. Detrois, D. Isheim, D.N. Seidman, R.C. Helmink, R. Goetz, E. Sun, S. Tin, “Comparison of Thermodynamic Models and APT Database of Data for Modeling in High Strength Nb Content of γ-γ’ Ni-base Superalloys.” Materials and Design, vol. 86, pp. 649-655, 2015.
M. Azadi, A. Marbout, S. Safarloo, M. Azadi, M. Shariat, and M.H. Rizi. “Effects of Solutioning and Aging Treatments on Properties of Inconel-713C Nickel-based Superalloys Under Creep Loading.” Materials Science and Engineering A, vol. 711, pp. 195-204, 2018.
B.E. Agus. “Innovation and Engineering Materials Superalloys and Development Efforts in Indonesia” 2013.
P. Jozwik, W. Polkowski, and Z. Bojar, “Applications of Ni3Al Based Alloys Intermetallic-Current Stage and Potential Perceptivities.” Materials (Basel), vol. 8, pp. 2357-2568, 2015.
S. Jiang, D. Sun, Y. Zhang, and B. Yan. “Influence of Heat Treatment on Microstructures and Mechanical Properties of Nickel-Based Alloy
NiCuCrMoTiAlNb” Metals (Basel), vol. 8, no. 4, p. 217, 2018.
K. Aoki and O. Izumi. “Improvement in Room Temperature Ductility of the intermetallic compound Ni3Al by Ternary Trace Element Addition.” Journal of The Japan Institute of Metals, vol. 43, no. 4, pp. 358-359, 1979.
N.R. Council and Publication Team. Intermetallic Alloy Development: A Program Evaluation, Washington DC: The National Research Council, 1997, pp. 10-31.
N.S. Stoloff, V.K. Sikka, Physical Metallurgy and Processing of Intermetallic Compounds, US: Springer, 1996.
G.R. Thellaputta, P.S. Chandra, and C.S.P. Rao. “Machinability of Nickel Based Superalloys: A Review.” In Mater. Today Proc., 2017, vol. 4, no. 2, pp. 3712-3721.
Z. Wen, Y. Zhao, H. Hou, N. Wang, L. Fu, and P. Han. “A first-principles study on the interfacial properties of Ni (001) / Ni 3 Nb (001).” Transactions of Nonferrous Metals Society of China, vol. 24, pp. 1500-1505, May 2014
ASMH Committee. “Metals Handbook: Heat treating.” ASM International, 1981.
L. Sheng, Y. Yang, and T. Xi. “Effect of heat treatment on morphology evolution of Ti2Ni phase in Ti-Ni-Al-Zr alloy”. In IOP Conf. Ser. Mater. Sci. Eng., 2018, vol. 322, no. 2.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
