Effect of aging heat treatment and uniaxial compression on thermal behavior of 7075 aluminum alloy

2020 ◽  
Vol 33 ◽  
pp. 5442-5447 ◽  
Author(s):  
Aditya Kumar Padap ◽  
Aditya Prakash Yadav ◽  
Praveen Kumar ◽  
Narendra Kumar
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Thermal Behavior ◽  
Uniaxial Compression ◽  
7075 Aluminum Alloy ◽  
Aging Heat Treatment

scholarly journals Effect of Retrogression and Re-Aging Heat Treatment on Hardness, Tensile Strength and Microstructure of 7075 Aluminum Alloy

2021 ◽  
Vol 28 (2) ◽  
pp. 63-68
Author(s):  
Mohamad Yehea Al nefawy ◽  
Fouad El dahiye
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
7075 Aluminum Alloy ◽  
Aging Heat Treatment ◽  
Different Temperatures ◽  
Aluminum Alloy 7075

Retrogression and Re-Aging (RRA) Heat Treatment improves the tensile of aluminum alloys. In this research, to study the effect of Retrogression temperature and Retrogression time on the hardness, tensile strength and microstructure of 7075 aluminum alloy, have been applied. Retrogression treatments at different temperatures 180°C, 240°C and 370°C for 30 min and 90 min. When the retrogression temperature was 180°C for 30 min, the alloy has reached its highest hardness and tensile strength; they were respectively 165 HB and 586 MPa. RRA treatment of aluminum alloy 7075 led to precipitate a smoother, more homogeneous, and denser phase compared to the T6 treatment.

Effect of Heat Treatment on Mechanical Properties of ECAPed 7075 Aluminum Alloy

2013 ◽  
Vol 829 ◽  
pp. 62-66 ◽  
Author(s):  
Alireza Fallahi ◽  
Hossein Hosseini-Toudeshky ◽  
Seyed Mahmoud Ghalehbandi
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Thermal Stability ◽  
Aluminum Alloy ◽  
Solution Treatment ◽  
7075 Aluminum Alloy ◽  
Ecap Processing ◽  
Good Thermal Stability ◽  
7075 Alloy

It is the objective of this study to investigate the effect of ECAP processing and heat treatment on the mechanical properties of the UFG 7075 alloy. Also the effect of post ECAP heat treatment is investigated. The alloy is processed by ECAP after annealing as well as solution treatment to produce an UFG structure. Furthermore mechanical properties and their variations during annealing and aging are investigated. The hardness of the pre-ECAP annealed and the pre-ECAP solutionised 7075 aluminum alloy has increased significantly compared with that of the CG sample. Also hardness of ECAPed specimen has not experienced significant changes in post-ECAP heat treatment and indicated that the alloy had approximately good thermal stability.

Research Progress on Heat Treatment Processes of 7000 Series Aluminum Alloy

2014 ◽  
Vol 884-885 ◽  
pp. 316-319 ◽  
Author(s):  
Li Ping Zhong ◽  
Li Zhao ◽  
Long Zhou
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Research And Development ◽  
Aging Process ◽  
Research Progress ◽  
Aging Heat Treatment ◽  
Microstructure And Properties ◽  
Treatment Processes ◽  
The Future ◽  
Series Aluminum Alloy

The research progress of homogenization, solution and aging heat treatment processes and their effects on microstructure and properties of 7000 series aluminum alloy was reviewed in this paper. The solution and aging process were analysed mainly. The problems existing in the industrialization application of heat treatment of the alloy and the demanding problems to be solved in research and development in the future were described.

scholarly journals A New Infrared Heat Treatment on Hot Forging 7075 Aluminum Alloy: Microstructure and Mechanical Properties

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1177 ◽  
Author(s):  
Yi-Ling Chang ◽  
Fei-Yi Hung ◽  
Truan-Sheng Lui
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Material Property ◽  
Rapid Heating ◽  
Hot Forging ◽  
Target Material ◽  
Age Hardening ◽  
Experimental Result ◽  
7075 Aluminum Alloy

When hot forging 7075 aluminum alloy, as a military material durable enough for most of its applications, it needs to be heat-treated to ensure the target material property achieves the application requirements. However, the material properties change because of heat throughout usage. In this study, a new approach was devised to heat treat the alloy to prevent material property changes. The study further clarified the effect of rapid heat treatment on the high-temperature resistance of a hot forging 7075 aluminum alloy. Infrared (IR) heat treatment was used as a rapid heating technique to effectively replace the conventional resistance heat (RH) treatment method. Our experimental result showed that IR heat treatment resulted in better age hardening at the initial aging stage, where its tensile strength and elongation appeared like that of a resistance heat treatment. More so, based on hardness and tensile test results, the IR-heated treatment process inhibited the phase transformation of precipitations at a higher temperature, improving high-temperature softening resistance and enhancing the thermal stability of the hot forging 7075 aluminum alloy.

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