Besaran Energi Aktivasi dan Temperatur Solidus dari Aluminium Alloy 7075

Authors

  • Nukman Nukman Program Profesi Insinyur, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya dan Program Studi Teknik Mesin, Fakultas Teknik, Universitas Sriwijaya
  • Hadi Sutanto Program Profesi Insinyur, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya

DOI:

https://doi.org/10.36706/jrm.v25i1.1352

Keywords:

Aluminium Alloy, TGA, Activation Energy, Solidus Temperature

Abstract

Aluminum Alloy 7075 is a type of aluminum with a dominant zinc alloy. This type of aluminum is widely used for aircraft bodies and frames. Activation Energy and Solidus Temperatr can be calculated using Thermogravimetry Analyzer. By using the Arrhenius equation, the amount of Activation energy can be calculated, while using the relationship between TG and DTA on the Thermogram diagram, the melting temperatr of AA 7075 material or solidus temperatr can be determined. The solidus temperatr has been measured at 633.8 oC and the activation energy is calculated at 2,842 kJ/mol.

Downloads

Download data is not yet available.

References

Askeland, R. D. & Wright, W. J., The Science and Engineering of Materials. 7 ed. Boston: Engage Learning. 2016.

Gabbott, P. Principles and Applications of Thermal Analysis. Oxfprd: Balckwell Publishing Ltd. 2008.

Aldika & Nukman. Energy Activation of Decomposition of Castings of Pure Aluminum - Stannum Alloy. Indonesian Journal of Engineering and Science, July, 3(2), p. 61. 2022.

Surya, I. et al. TGA/DTA Analysis for AA6061 with Fine Coal Blend. Palembang, AIP Publishing. 2023.

Iwasaki, K. et al. Non-contact terahertz evaluation of the melting point for PET bottles. Thermochimica Acta, March.Volume 736. 2024.

Brown, M. E. Introduction to Thermal Analysis. New York: Kluwer Academic Publishers. 2004.

Seetharaman, S. Fundamentals of Metallurgy. 1st ed. Cambridge: Woodhead Publishing Limited. 2005.

ASM-Handbook. Properties and Selection: Nonferrous Alloys and Special-Purpose Materials. 2nd ed. s.l.:ASM International. 1992.

Callister, W. D. J. Materials Science and Engineering. 7 ed. New York: John Wiley & Sons, Inc. 2007.

Published

2025-03-28

How to Cite

Nukman, N., & Sutanto, H. (2025). Besaran Energi Aktivasi dan Temperatur Solidus dari Aluminium Alloy 7075. Jurnal Rekayasa Mesin, 25(1), 1–4. https://doi.org/10.36706/jrm.v25i1.1352