Effects of Testing Temperature on the Serration Behavior of an Al–Zn–Mg–Cu Alloy with Natural and Artificial Aging in Sharp Indentation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Specimen
2.2. Indentation
2.2.1. Testing Conditions
2.2.2. Indenter Control
3. Results
4. Discussion
4.1. Effect of Aging on the Material Strength
4.1.1. Temperature of 77 K
4.1.2. Temperature of 293 and 343 K
4.1.3. Temperature of 443 K
4.2. Effect of Testing Temperature on the Serration Behavior
4.2.1. Temperature of 77 K
4.2.2. Temperature of 293 K
4.2.3. Temperature of 343 K
4.2.4. Temperature of 443 K
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
---|---|---|---|---|---|---|---|---|---|
7075 | 0.09 | 0.19 | 1.6 | 0.04 | 2.6 | 0.20 | 5.6 | 0.02 | Bal. |
Solute Atom | D0 (m2/s) | Q (kcal/mol) | Testing Temperature (K) | D (m2/s) | Reference |
---|---|---|---|---|---|
Zn | 1.77 × 10−5 | 28.0 | 77 | 7.74 × 10−85 | [27] |
293 | 2.47 × 10−26 | ||||
343 | 2.71 × 10−23 | ||||
443 | 2.85 × 10−19 | ||||
Mg | 6.23 × 10−6 | 27.5 | 77 | 7.11 × 10−84 | [28] |
293 | 2.05 × 10−26 | ||||
343 | 1.98 × 10−23 | ||||
443 | 1.77 × 10−19 | ||||
Cu | 1.5 × 10−5 | 30.2 | 77 | 3.81 × 10−91 | [29] |
293 | 4.81 × 10−28 | ||||
343 | 9.14 × 10−25 | ||||
443 | 1.99 × 10−20 |
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Yamada, H.; Kami, T.; Ogasawara, N. Effects of Testing Temperature on the Serration Behavior of an Al–Zn–Mg–Cu Alloy with Natural and Artificial Aging in Sharp Indentation. Metals 2020, 10, 597. https://doi.org/10.3390/met10050597
Yamada H, Kami T, Ogasawara N. Effects of Testing Temperature on the Serration Behavior of an Al–Zn–Mg–Cu Alloy with Natural and Artificial Aging in Sharp Indentation. Metals. 2020; 10(5):597. https://doi.org/10.3390/met10050597
Chicago/Turabian StyleYamada, Hiroyuki, Tsuyoshi Kami, and Nagahisa Ogasawara. 2020. "Effects of Testing Temperature on the Serration Behavior of an Al–Zn–Mg–Cu Alloy with Natural and Artificial Aging in Sharp Indentation" Metals 10, no. 5: 597. https://doi.org/10.3390/met10050597