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Erik Kurniawan Widyantoro
Department of Industrial Mechanical Engineering Institut Teknologi Sepuluh Nopember
Computer Science & IT

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Effects of Holding Time During Artificial Aging Process on AA6061 to the Mechanical Properties Atria Pradityana; Erik Kurniawan Widyantoro
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.556 KB) | DOI: 10.12962/j23546026.y2019i3.5855

Abstract

Materials that have been frequently used for automotive or construction equipment are Aluminum Alloys (AA) 6061. Artificial aging is one of the processes to obtain optimal strength and hardness values. In this process, depending on the temperature and holding time. In this study, experiments have been carried out on the effects of holding time during the artificial aging process. Heating a solid solution at 300C for 1 hour is the first step. The holding time variations used are 1, 2, 3, 4, and 5 hours. Experiments have been made on impact strength, hardness values and microstructure. For hardness values decrease with increasing holding time. When holding time for 1 hour has a value of 80.8 HVN while the holding time of 5 hours has a hardness value of 47.4 HVN. But in impact testing, the impact strength increases with increasing holding time. Both of these have been supported by microstructure observation data.
Influence of Aging Temperature During Artificial Aging Process on Aluminium Alloy to the Mechanical Properties Atria Pradityana; Budi Luwar Sanyoto; Erik Kurniawan Widyantoro
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.651 KB) | DOI: 10.12962/j23546026.y2019i3.5832

Abstract

The aging process is a hardening process that aims to change the physical properties and mechanical properties of the material according to needs. This process is carried out by holding the heating process at a certain temperature for a certain period of time. Aluminium alloys have good mechanical properties. One way to improve the mechanical properties of a material is by hardening process. This aging process is one example of the hardening process. In this study, an artificial aging process was carried out on aluminium 6061 alloys. Analysis was carried out on the effect of aging temperature during the artificial aging process. Temperature variations used are 100, 125, 150, 175, 200oC. The holding time is 1 hour. At the beginning of the process, heating with a heat treatment solution was carried out at 300oC for 1 hour. Then quenching with water media. The next work process, heat treatment is carried out with the variations mentioned above. The last step is to do quenching again. Analysis of the mechanism is carried out on impact strength, hardness value and microstructure. The results of the analysis show that the best aging temperature range during the artificial aging process in 6061 aluminium alloys is at 150 to 200oC. In this study, the best impact strength was produced at an aging temperature of 200° C, the best hardness value at an aging temperature of 150° C and a microstructure that contained the least precipitations at a temperature of 200°C.
Co-Authors Atria Pradityana Budi Luwar Sanyoto