Role of heat treatment and cathodic charging conditions on the hydrogen embrittlement of HP 7075 aluminum alloy

1990 ◽  
Vol 21 (1) ◽  
pp. 455-464 ◽  
Author(s):  
J. Chene ◽  
I. M. Bernstein ◽  
A. W. Thompson
Keyword(s):  
Heat Treatment ◽  
Aluminum Alloy ◽  
Hydrogen Embrittlement ◽  
7075 Aluminum Alloy ◽  
Cathodic Charging

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.

601 Hydrogen embrittlement in a 7075 aluminum alloy subjected to different heat-treatments

2007 ◽  
Vol 2007 (0) ◽  
pp. 131-132
Author(s):  
Goroh ITOH ◽  
Shun IGARASHI ◽  
Yuichi ARAI ◽  
Nobuhide ITOH ◽  
Hitoshi YABUTA
Keyword(s):  
Aluminum Alloy ◽  
Hydrogen Embrittlement ◽  
Heat Treatments ◽  
7075 Aluminum Alloy

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.

scholarly journals Effects of orientation of specimen on hydrogen embrittlement in 7075 aluminum alloy.

1985 ◽  
Vol 35 (4) ◽  
pp. 215-221 ◽  
Author(s):  
Tadakazu OHNISHI ◽  
Kimitoshi INAGAKI ◽  
Kenji HIGASHI
Keyword(s):  
Aluminum Alloy ◽  
Hydrogen Embrittlement ◽  
7075 Aluminum Alloy
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