The Effect of Variation of Aluminum Thickness Series 7075 in Heat Treatment Solution on Tensile Strength and Microstructure

Abstract:

This research was conducted to examine the comparison of tensile strength and microstructure between two different aluminum heat treatments. This study aims to compare the microstructure and tensile strength of aluminum 7075 specimens after undergoing solution heat treatment at a temperature of 495°C with soaking time for 30 minutes and experiencing quenching cooling and those without solution heat treatment. The data collection process was carried out by conducting tensile testing and microstructural testing with two specimens each. The test results will be analyzed using tensile strength data and visual microstructure analysis. From the results of the analysis of tensile and microstructural test data, it can be concluded that only the 7075 aluminum specimen with a thickness of 1.4 mm shows the greatest decrease in tensile strength and spread of Mg-Zn and Fe-Al particles, when compared to specimen 7075 with a thickness of 0.6 mm which on the other hand, undergo the separation of Mg-Zn and Fe-Al particles. Meanwhile, the Al 7075 specimen with a thickness of 2.5 mm, the changes that occur only in the diffusion of Mg-Zn particles, which have a slight spread, appear a little faint.

• Periodical: Materials Science Forum (Volume 1051)
• Pages: 131-136
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1051.131
• Online since: January 2022
• Authors: Iis Siti Aisyah*, Agus Salim, Roro Heni Hendaryati, Yepy Komaril Sofi'i, Krismondo Reza Prasetyo
• Keywords: Aluminium 7075, Microstructure, Quenching, Solution Heat Treatment, Tensile Strength

References

[1] L. Zhu, N. Li, P.R.N. Childs, Light-weighting in aerospace component and system design, Propuls. Power Res. 7 (2018) 103–119. https://doi.org/10.1016/j.jppr.2018.04.001.

DOI: 10.1016/j.jppr.2018.04.001

[2] J. Fiocchi, A. Tuissi, C.A. Biffi, Heat treatment of aluminium alloys produced by laser powder bed fusion: A review, Mater. Des. 204 (2021). https://doi.org/10.1016/j.matdes.2021.109651.

DOI: 10.1016/j.matdes.2021.109651

[3] D.A. Fadare, T.G. Fadara, O.Y. Akanbi, Effect of Heat Treatment on Mechanical Properties and Microstructure of NST 37-2 Steel, J. Miner. Mater. Charact. Eng. 10 (2011) 299–308. https://doi.org/10.4236/jmmce.2011.103020.

DOI: 10.4236/jmmce.2011.103020

[4] M. Imran, A.R.A. Khan, Characterization of Al-7075 metal matrix composites: A review, J. Mater. Res. Technol. 8 (2019) 3347–3356. https://doi.org/10.1016/j.jmrt.2017.10.012.

[5] B. Zhou, B. Liu, S. Zhang, The advancement of 7xxx series aluminum alloys for aircraft structures: A review, Metals (Basel). 11 (2021). https://doi.org/10.3390/met11050718.

DOI: 10.3390/met11050718

[6] H. Panchal, A. Singh, R.J. Akbari, V. Chheta, Effect of Heat-Treatment on Various Properties of Aluminium 7075 : A Review, Int. J. Res. Trends Innov. 5 (2020) 116–123.

[7] P. Heugue, D. Larouche, F. Breton, D. Massinon, R. Martinez, X.G. Chen, Precipitation kinetics and evaluation of the interfacial mobility of precipitates in an alsi7cu3.5mg0.15 cast alloy with zr and v additions, Metals (Basel). 9 (2019). https://doi.org/10.3390/met9070777.

DOI: 10.3390/met9070777

[8] S.E. Al-lubani, M.E. Matarneh, H.M. Al-wedyan, A.M. Rayes, Heat Treatment of Aluminum Alloy 7449, Int. J. Chem. Mater. Sci. Eng. 7 (2013) 51–56.

[9] A. Sabard, H.L. de Villiers Lovelock, T. Hussain, Microstructural Evolution in Solution Heat Treatment of Gas-Atomized Al Alloy (7075) Powder for Cold Spray, J. Therm. Spray Technol. 27 (2018) 145–158. https://doi.org/10.1007/s11666-017-0662-2.

DOI: 10.1007/s11666-017-0662-2

[10] S. Kilic, I. Kacar, M. Sahin, F. Ozturk, O. Erdem, Effects of aging temperature, time, and pre-strain on mechanical properties of AA7075, Mater. Res. 22 (2019) 1–13. https://doi.org/10.1590/1980-5373-MR-2019-0006.

DOI: 10.1590/1980-5373-mr-2019-0006

[11] H. Jo, M. Kang, G.W. Park, B.J. Kim, C.Y. Choi, H.S. Park, S. Shin, W. Lee, Y.S. Ahn, J.B. Jeon, Effects of cooling rate during quenching and tempering conditions on microstructures and mechanical properties of carbon steel flange, Materials (Basel). 13 (2020). https://doi.org/10.3390/MA13184186.

DOI: 10.3390/ma13184186

[12] S. Liu, Y. Zhu, X. Lai, X. Zheng, R. Jia, X. Yuan, Influence of different heat treatment temperatures on the microstructure, corrosion, and mechanical properties behavior of fe-based amorphous/nanocrystalline coatings, Coatings. 9 (2019). https://doi.org/10.3390/coatings9120858.

DOI: 10.3390/coatings9120858

[13] M. Szala, G. Winiarski, Ł. Wójcik, T. Bulzak, Effect of annealing time and temperature parameters on the microstructure, hardness, and strain-hardening coefficients of 42CrMo4 steel, Materials (Basel). 13 (2020). https://doi.org/10.3390/MA13092022.

DOI: 10.20944/preprints202004.0147.v1

[14] M.H. Abdelaziz, M. Paradis, A.M. Samuel, H.W. Doty, F.H. Samuel, Effect of Aluminum Addition on the Microstructure, Tensile Properties, and Fractography of Cast Mg-Based Alloys, Adv. Mater. Sci. Eng. 2017 (2017) 1–11. https://doi.org/10.1155/2017/7408641.

DOI: 10.1155/2017/7408641

[15] M. de J.B. Rodríguez, F.A.A. González, M.M.T. Rosas, A Review of the Boiling Curve with Reference to Steel Quenching, Metals (Basel). 11 (2021) 1–17.

[16] K.S. Seo, R. Bajracharya, S.H. Lee, H.K. Han, Pharmaceutical application of tablet film coating, Pharmaceutics. 12 (2020) 1–20. https://doi.org/10.3390/pharmaceutics12090853.

DOI: 10.3390/pharmaceutics12090853