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Contact Name
Haris Wahyudi
Contact Email
haris.wahyudi@ijatec.com
Phone
+6282218098575
Journal Mail Official
haris.wahyudi@ijatec.com
Editorial Address
Institute for Research on Innovation and Industrial System (IRIS) Jl.Raya Mustika Jaya No 88, Mustika Jaya, Bekasi Kota - 17158
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INDONESIA
International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC)
ISSN : 27208990     EISSN : 27209008     DOI : http://dx.doi.org/10.37869
IJATEC is a peer-reviewed scientific journal that published three (3) times a year, in March, July and November. Editors receive research papers that closely related to the field of engineering as follow; Acoustical engineering, including the manipulation, control and prediction of vibration, vibration isolation and the reduction of unwanted sounds. Aerospace engineering, the application of engineering principles to aerospace systems such as aircraft and spacecraft. Artificial technology & engineering applications, including artificial intelligence and technology, robotics, mechatronics, electrical and electronics engineering. Automotive engineering, including the design, manufacture and operation of motorcycles, automobiles, buses and trucks. Energy engineering, including energy efficiency, energy services, facility management, computational fluid dynamics, plant engineering, environmental compliance and alternative energy technologies. Manufacturing engineering including the research and development of systems, processes, machines, tools, and equipment of manufacturing practice. Materials science and engineering, related with biomaterials, computational materials, environment and green materials, science and technology of polymers, sensors and bioelectronics materials, constructional and engineering materials, nanomaterials and nanotechnology, composite and ceramic materials, energy materials and harvesting, optical, electronic and magnetic materials, structure materials. Microscopy, including applications of electron, neutron, light and scanning probe microscopy in biomedicine, biology, image analysis system, physics, chemistry of materials, and Instrumentation. Power plant engineering, a field of engineering that designs, construct and maintains different types of power plants. Serves as the prime mover to produce electricity. Sustainable and renewable energy, including research and application. Thermal engineering, including heating or cooling of processes, equipment, or enclosed environments; Heating, Ventilating, Air-Conditioning (HVAC) and refrigerating. Transportation Engineering, including highways, bridges, drainage structures, municipal utilities, roadway lighting, traffic control devices and intelligent transportation systems. Vehicle engineering, the design, manufacture and operation of the systems and equipment that propel and control vehicles.
Articles 12 Documents
THE EFFECT OF BALL SIZE ON HARDNESS OF MECHANICALLY ALLOYED AL-10WT.%TI POWDERS Supriyanto, Adolf Asih; Widodo, Widodo; Tauvana, Ade Irvan; Syafrizal, Syafrizal
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 1, No 2 (2020)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (750.385 KB) | DOI: 10.37869/ijatec.v1i2.21

Abstract

Particle size and hardness of Al-10%wt.Ti powders due to the influence of ball diameter have been carried out using mechanical alloying techniques. The milling device used consisted of a Fritsch Pulverisette-5 planetary type ball mill with the rotational speed of about 360 rpm and balls size of 10, 15 and 20 mm. The materials used are stearic acid which was used as a process control agent, aluminum and titanium powders. A mixture of aluminum and titanium powders has the composition of Al-10wt.%Ti. The Al-10wt.%Ti powders, stearic acid and stainless-steel balls were added to the Fritsch Pulverisette-5 planetary in the argon gas environment. The weight ratio of stainless steel balls to the Al-10wt.%Ti powder was 20 : 1. The mixing time process was carried out for 5, 10, 15, 20 and 30 hours, respectively. Changes in phase compositions of these Al-Ti powders under different ball mill sizes were examined by XRD, and the optimum experimental parameter was obtained: the ball mill size was 20 mm. It was found that from the diffraction patterns of the Al-10wt.%Ti powders, the peaks of titanium begin to disappear with the increasing of the milling time, which indicates the increasing degrees of alloying of titanium atoms in the aluminum matrix. The microhardness test results showed that the hardness increases with increasing ball size.
NEW METHOD OF FABRICATION OF FE80CR20 ALLOY: EFFECT OF ITS TECHNIQUE ON CRYSTALLITE SIZE AND THERMAL STABILITY Feriyanto, Dafit; Zakaria, Supaat
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 1, No 1 (2020)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.646 KB) | DOI: 10.37869/ijatec.v1i1.11

Abstract

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.

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