Unknown

Dataset Information

0

Dynamic Recrystallization Behavior and Processing Map of the 6082 Aluminum Alloy.


ABSTRACT: 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.

SUBMITTER: Hu DC 

PROVIDER: S-EPMC7084686 | BioStudies | 2020-01-01

SECONDARY ACCESSION(S): 10.2355/isijinternational.43.684

REPOSITORIES: biostudies

Similar Datasets

2014-01-01 | S-EPMC5453149 | BioStudies
1000-01-01 | S-EPMC6213867 | BioStudies
2020-01-01 | S-EPMC7254276 | BioStudies
2015-01-01 | S-EPMC5458924 | BioStudies
1000-01-01 | S-EPMC6266074 | BioStudies
2019-01-01 | S-EPMC6479906 | BioStudies
2020-01-01 | S-EPMC7084970 | BioStudies
1000-01-01 | S-EPMC6213516 | BioStudies
2014-01-01 | S-EPMC5453291 | BioStudies
2017-01-01 | S-EPMC5503413 | BioStudies