Optimizing Heat Treatment Parameters for the W-Temper Forming of 7xxx Series Aluminum Alloys
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Heat Treatment
2.3. Mechanical Testing
2.4. Differential Scanning Calorimetry (DSC)
2.5. Optical Microscopy
3. Results and Discussion
3.1. Heat Treatment Temperatures
3.2. Holding Time for the Alloy EN AW-7020
3.3. Aging Response and Effect of Pre-Deformation on the Alloy EN AW-7020
3.4. Aging Response and Effect of Pre-Deformation on the Alloy EN AW-7075
3.5. Optical Micrographs
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Alloy | Al | Zn | Mg | Cu | Fe | Si | Mn | Cr | Zr | Ti |
---|---|---|---|---|---|---|---|---|---|---|
EN AW-7020 | 93.14 | 4.92 | 1.27 | 0.06 | 0.13 | 0.05 | 0.15 | 0.10 | 0.09 | 0.02 |
EN AW-7575 | 87.54 | 7.26 | 2.92 | 1.72 | 0.11 | 0.08 | 0.03 | 0.19 | 0.04 | 0.04 |
- | As-Received | As-Quenched | Peak Aged (27 h) | ||
---|---|---|---|---|---|
Deformation | - | 0% | 15% | 0% | 15% |
Average grain size (µm) | 45 | 59 | 56 | 56 | 56 |
Standard deviation (µm) | 5.1 | 5.0 | 12.3 | 14.5 | 11.2 |
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Hebbar, S.; Kertsch, L.; Butz, A. Optimizing Heat Treatment Parameters for the W-Temper Forming of 7xxx Series Aluminum Alloys. Metals 2020, 10, 1361. https://doi.org/10.3390/met10101361
Hebbar S, Kertsch L, Butz A. Optimizing Heat Treatment Parameters for the W-Temper Forming of 7xxx Series Aluminum Alloys. Metals. 2020; 10(10):1361. https://doi.org/10.3390/met10101361
Chicago/Turabian StyleHebbar, Shreyas, Lukas Kertsch, and Alexander Butz. 2020. "Optimizing Heat Treatment Parameters for the W-Temper Forming of 7xxx Series Aluminum Alloys" Metals 10, no. 10: 1361. https://doi.org/10.3390/met10101361