scholarly journals Tensile behavior of multiple forged 6082 Al alloy

2014 ◽  
Vol 58 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Tareg S. Ben Naser ◽  
Kristóf Bobor ◽  
György Krállics
Keyword(s):  
Tensile Behavior ◽  
Al Alloy ◽  
6082 Al Alloy

scholarly journals Effect of pH on Stress Corrosion Cracking of 6082 Al Alloy

Metals ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 578 ◽  
Author(s):  
C. Panagopoulos ◽  
Emmanuel Georgiou ◽  
K. Giannakopoulos ◽  
P. Orfanos
Keyword(s):  
Aluminum Alloy ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Al Alloy ◽  
Cracking Behavior ◽  
Effect Of Ph ◽  
Cracking Mechanisms ◽  
6082 Aluminum Alloy ◽  
6082 Al Alloy

In this work, the effect of pH (3, 7 and 10) on the stress corrosion cracking behavior of 6082 aluminum alloy, in a 0.3 M sodium chloride (NaCl) aqueous based solution was investigated. The stress corrosion cracking behavior was studied with slow strain rate testing, whereas failure analysis of the fractured surfaces was used to identify the dominant degradation mechanisms. The experimental results clearly indicated that stress corrosion cracking behavior of this aluminum alloy strongly depends on the pH of the solution. In particular, the highest drop in ultimate tensile strength and ductility was observed for the alkaline pH, followed by the acidic, whereas the lowest susceptibility was observed in the neutral pH environment. This observation is attributed to a change in the dominant stress corrosion cracking mechanisms.

scholarly journals Dynamic Recrystallization Behavior and Processing Map of the 6082 Aluminum Alloy

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1042 ◽  
Author(s):  
Dao-chun Hu ◽  
Lei Wang ◽  
Hong-jun Wang
Keyword(s):  
Dynamic Recrystallization ◽  
Critical Strain ◽  
High Efficiency ◽  
Processing Map ◽  
Testing Machine ◽  
Hot Compression ◽  
Hot Working ◽  
Al Alloy ◽  
Strain Rates ◽  
6082 Al Alloy

Multiple hot-compression tests were carried out on the 6082 aluminum (Al) alloy using a Gleeble-1500 thermal simulation testing machine. Data on flow stresses of the 6082 Al alloy at deformation temperatures of 623 to 773 K and strain rates from 0.01 to 5 s−1 were attained. Utilizing electron backscatter diffraction (EBSD) and a transmission electron microscope (TEM), the dynamic recrystallization behaviors of the 6082 Al alloy during hot compression in isothermal conditions were explored. With the test data, a hot-working processing map for the 6082 Al alloy (based on dynamic material modeling (DMM)) was drawn. Using the work-hardening rate, the initial critical strain causing dynamic recrystallization was determined, and an equation for the critical strain was constructed. A dynamic model for the dynamic recrystallization of the 6082 Al alloy was established using analyses and test results from the EBSD. The results showed that the safe processing zone (with a high efficiency of power dissipation) mainly corresponded to a zone with deformation temperatures of 703 to 763 K and strain rates of 0.1 to 0.3 s−1. The alloy was mainly subjected to continuous dynamic recrystallization in the formation of the zone. According to the hot-working processing map and an analysis of the microstructures, it is advised that the following technological parameters be selected for the 6082 Al alloy during hot-forming: a range of temperatures between 713 and 753 K and strain rates between 0.1 and 0.2 s−1.

Effect of microstructure on tensile behavior of thixoformed 357-T5 semisolid Al alloy

2004 ◽  
Vol 35 (4) ◽  
pp. 1407-1410 ◽  
Author(s):  
Chul Park ◽  
Sangshik Kim ◽  
Yongnam Kwon ◽  
Youngseon Lee ◽  
Junghway Lee
Keyword(s):  
Tensile Behavior ◽  
Al Alloy ◽  
Effect Of Microstructure

Morphology and Tensile Behavior of 2024 Al Alloy Objects Fabricated by Uniform Droplet Spraying Deposition

2012 ◽  
Vol 472-475 ◽  
pp. 787-790
Author(s):  
Peng Yun Wang ◽  
He Jun Li ◽  
Le Hua Qi ◽  
Hai Liang Deng ◽  
Han Song Zuo
Keyword(s):  
Shear Fracture ◽  
Tensile Behavior ◽  
Al Alloy ◽  
Drop On Demand ◽  
Metallurgical Bonding ◽  
Smooth Region ◽  
Molten Droplets ◽  
Rough Region ◽  
Uniform Droplet ◽  
Moving Substrate

A metal rapid prototyping technique, uniform droplet spraying, is utilized to fabricate 2024 Al alloy objects. Molten droplets are generated by drop-on-demand mode and deposited onto a zigzag moving substrate, which produces objects with different side surfaces. The tensile strength of the deposited specimen is 180.5 MPa, with elongation to fracture of ~8.2%. The fracture surface of deposited specimen presents two regions, namely, rough region and smooth region. The smooth region initially cracks under tension load, and the rough region presents many elongated dimples, indicating a ductile shear fracture. This unique tensile behavior could be attributed to weak metallurgical bonding between droplets and the special movement of substrate.

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