New Method of Fabrication of Fe80Cr20 Alloy: Effect of its Technique on Crystallite Size and Thermal Stability

Dafit Feriyanto, Supaat Zakaria



This paper focuses on the effect of the new method on the crystallite size and thermal stability of Fe80Cr20 alloy powder. Generally, the ball milling sample and ultrasonic technique sample have dissatisfaction result when applied at high temperature. In addition, the combination of both techniques not yet carried out. Therefore, this study aim to investigate an appropriate technique to produce smallest crystallite size in order to improve the thermal stability. The new method of mechanical alloying (mill) and ultrasonic technique (UT) were applied in order to reduce the crystallite size and improve thermal stability. The new method is called as combination treatment. This condition allows the enhancement of thermal stability of Fe80Cr20 alloy powder. In this study, mechanical alloying process was carried out by milling time of 60 hours. Then, the ultrasonic technique was performed at frequency of 35 kHz at 3, 3.5, 4, 4.5, and 5 hours. From XRD analysis, it was found that the broader peaks indicated the smaller crystallite size. It shows that the combination treatment (milled and UT) reduce the crystallite size up to 2.171 nm when mechanically alloyed for 60 hours (milled 60 h) and followed by ultrasonic treatment for 4.5 hours (UT 4.5 h). Smallest crystallite size enhance the thermal stability up to 12.7 mg which shown by TGA analysis during 1100 0C temperature operation. The combination treatment is method which is effective to fabricate Fe80Cr20 alloy powder.


crystallite size; thermal stability; mechanical alloying; ultrasonic technique and interconnect

Full Text:


Article Viewers

Abstract viewed: 158 times
PDF viewed: 70 times


Benjamin CC. Georgia Institute of Technology Atlanta, 2004; Georgia, Phd thesis.

Smith WF. Structure and Properties of Engineering Alloys., 2nd ed., New York, McGraw-Hill; 1993.

Angel Ortiz L., Osborn W., Markmaitree T., Leon Shaw L. Stability of Lithium Hydride in Argon and Air. Journal of Alloys and Compounds, 2008;454:297–305.

Daengsakul S., Thomas C., Mongkolkachit C., Maensiri S. Effects of crystallite size on magnetic properties of thermal-hydro decomposition prepared La1−xSrxMnO3 nanocrystalline powders Solid State Sciences, 2012;14:1306-1314.

Hadi Pranoto, Dafit Feriyanto, Supaat Zakaria. Performance and Exhaust Gas Temperature Investigation of Ceramic, Metallic and FeCrAl Catalytic Converter In Gasoline Engine. Sinergi, 2019;23(1):11-16

Hadi Pranoto, Nurato Nurato, Dafit Feriyanto. Coating Thickness Analysis of Deposited FeCrAl Substrate By γ-AL2O3 Through NiO-Electroplating. Sinergi, 2018;22(3):177-184.

Sebayang D., Hendi Saryanto, Pudji Untoro, Deni S. Khaerudini: Effect of depth implantation of lanthanum on the oxidation of Fe80Cr20 based alloys. World Congress on Engineering (WCE), London, UK 2010.

Dafit Feriyanto, M. I. Idris, Darwin Sebayang. The Effect of Ultrasonic Treatment on The Oxidation Resistance and Microstructure of Fe80Cr20 Alloy Powder at High Temperature Oxidation Process. Advanced Materials Research, 2015;1087:126-130.

Dafit Feriyanto, M. I. Idris, Darwin Sebayang. Effect of Cr to Fe on the Solid Solubility, Lattice Parameter and Strain of Fe80Cr20Alloy Powder. Applied Mechanics and Materials, 2014;660:280-284.

Marwene O., Sobhi H., Mohamed B., Herbet B.S., Ieda MGS., Mohamed O. Spin-glass-like behaviour in ball milled Fe30Cr70 alloy studied by ac magnetic Susceptibility. Journal of Alloys and Compounds, 2013;5701:79–84.

Okada K., Nagashima T., Kameshima Y., and Yasumori A. Effect of Crystallite Size on the Thermal Phase Change and Porous Properties of Boehmite Journal of Colloid and Interface Science, 2002;248:111–115.

Fnidiki A., Lemoine C., Teillet J. Properties of mechanically alloyed Fe 100-x Crx powder mixtures: Mossbauer study Physica, 2005;357:319–325.

Mittemeijer, E.J. & U. Welzel: Z. The ”State of The Art” of the diffraction analysis of crystallite size and lattice strain. Kristallogr, 2008;233:552-560.

Ungar T., Gubicza J., Ribaarik G. & Borbealy A.: Aqueous chemical growth of alpha-Fe2O3 alpha- Cr2O3 Nanocompisite thin films. Journal of Nanoscience Nanotechnology, 2001;1(4):385-388.

Khairul B., Xianglian, Sainer S., Kouta O., Takashi S., Haruyuki T., Osami A., Naoki I. and Yoshinobu I. Applications of ultrasound to materials chemistry. Indonesian Journal of Physics, 2009;20(1).

Mei Q.S., Lu K. Melting and superheating of crystalline solids: From bulk to nanocrystals. Progress in Materials Science, 2007.


  • There are currently no refbacks.

Share This Article

Copyright (c) 2020 International Journal of Advanced Technology in Mechanical, Mechatronics and Materials

IJATEC is indexed by the following abstracting and indexing services:

International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC)
Institute for Research on Innovation and Industrial System (IRIS)
Jl.Raya Mustika Jaya No 88, Mustika Jaya, Bekasi Kota - 17158
Telp./Fax: +62 815-7499-5509
p-ISSN: 2720-8990
e-ISSN: 2720-9008

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.