Study of a Bimodal α–β Ti Alloy Microstructure Using Multi-Resolution Spherical Indentation Stress-Strain Protocols
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials and Sample Preparation
2.2. Spherical Indentation
2.3. Spherical Nanoindentation Analysis
2.4. Microstructure Characterization and Quantification
2.5. Prediction of Effective Property
3. Results and Discussion
3.1. Microstructure Statistics
3.2. Spherical Nanoindentation Stress-Strain Measurements
3.3. Evaluation of the Composite Model
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Bimodal Microstructure Statistics | ||
---|---|---|
Local State | Fraction in α-Phase | Fraction in Bulk (f) |
α=0°–10° | 16% | 6.8% |
α = 10°–20° | 6.1% | 2.6% |
α = 20°–30° | 1.6% | 0.7% |
α = 30°–40° | 2.0% | 0.8% |
α = 40°–50° | 3.0% | 1.3% |
α = 50°–60° | 9.7% | 4.1% |
α = 60°–70° | 17.7% | 7.5% |
α = 70°–80° | 14.7% | 6.2% |
α = 80°–90° | 29.1% | 12.3% |
Basket-weave | 0% | 57.7% |
Spherical Indentation Measurements | |||
---|---|---|---|
Length Scale | Morphology | Eind [GPa] | Yind [GPa] |
Constituents | Basket-Weave | 121 ± 3.1 | 1.99 ± 0.12 |
Φα = 0°–10° | 125.2 | 2.73 | |
Φα = 10°–20° | 124.1 | 2.65 | |
Φα = 20°–30° | 121.7 | 2.47 | |
Φα = 30°–40° | 118.4 | 2.25 | |
Φα = 40°–50° | 111.9 | 2.03 | |
Φα = 50°–60° | 106.6 | 1.79 | |
Φα = 60°–70° | 100.9 | 1.60 | |
Φα = 70°–80° | 96.3 | 1.44 | |
Φα = 80°–90° | 93.7 | 1.37 | |
Bulk | Bimodal | 118 ± 2.6 | 1.96 ± 0.10 |
ROM Predictions | |||
Bulk | Bimodal | 114 | 1.92 |
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Millan-Espitia, N.; Kalidindi, S.R. Study of a Bimodal α–β Ti Alloy Microstructure Using Multi-Resolution Spherical Indentation Stress-Strain Protocols. J. Compos. Sci. 2022, 6, 162. https://doi.org/10.3390/jcs6060162
Millan-Espitia N, Kalidindi SR. Study of a Bimodal α–β Ti Alloy Microstructure Using Multi-Resolution Spherical Indentation Stress-Strain Protocols. Journal of Composites Science. 2022; 6(6):162. https://doi.org/10.3390/jcs6060162
Chicago/Turabian StyleMillan-Espitia, Natalia, and Surya R. Kalidindi. 2022. "Study of a Bimodal α–β Ti Alloy Microstructure Using Multi-Resolution Spherical Indentation Stress-Strain Protocols" Journal of Composites Science 6, no. 6: 162. https://doi.org/10.3390/jcs6060162