Investigation of Size Effects Due to Different Cooling Rates of As-Quenched Martensite Microstructures in a Low-Alloy Steel
Abstract
:Featured Application
Abstract
1. Introduction
2. Experimental Setup and Methodology
3. Experimental Results
3.1. Heat Treatment
3.2. Hardness
3.3. Microstructure Analyses
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviations
CPP | Close packet plane |
EBSD | Electron backscatter diffraction |
ECDF | Empirical cumulative distribution function |
PAG | Prior austenite grain |
Appendix A. Reconstructed Martensite Close Packet Plane Packets
Appendix B. Number of Close Packet Plane Packets and Blocks in Prior Austenite Grains
References
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Material | C | Si | Mn | P | S | Cr | Mo |
---|---|---|---|---|---|---|---|
50CrMo4 [1] | 0.52 | 0.26 | 0.74 | 0.014 | 0.008 | 1.31 | 0.18 |
Analysis | A1 | A2 | A3 | A4 |
---|---|---|---|---|
Specimen Type | A | A | B | A |
in | 279.3 | 277.1 | 286.8 | - |
in s | 20.0 | 6.3 | 4.9 | 0.62 |
in s | 18.1 | 20.1 | 15.3 | 0.47 * |
in s | 52.8 | 33.5 | 25.0 | 1.9 |
in | 15.0 | 47.6 | 61.2 | 484 |
in | 9.9 | 8.8 | 12.2 | 383 * |
in | 13.3 | 20.9 | 28.0 | 368 |
Material (Name) | in | Obvious Size Effect | Reference | in | |
---|---|---|---|---|---|
(Thermo-Calc TCFE 8) | |||||
Fe-22 wt.% Ni | 240 | Yes | [23] | 0.22 | * |
Fe-24 wt.% Ni | 187 | Yes | [21] | 0.29 | * |
Fe-18 wt.% Ni | 297 | Yes | [21] | 0.25 | * |
18% Ni maraging steel | 217 | Yes | [21] | 0.44 | |
WHT1500HF | 382 | Yes | [27] | 0.45 | |
50CrMo4 | 280 | No | 0.52 | ||
AISI 630 | 140 | No | [25] | 0.76 |
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Graf, M.; Kuntz, M.; Autenrieth, H.; Müller, R. Investigation of Size Effects Due to Different Cooling Rates of As-Quenched Martensite Microstructures in a Low-Alloy Steel. Appl. Sci. 2020, 10, 5395. https://doi.org/10.3390/app10155395
Graf M, Kuntz M, Autenrieth H, Müller R. Investigation of Size Effects Due to Different Cooling Rates of As-Quenched Martensite Microstructures in a Low-Alloy Steel. Applied Sciences. 2020; 10(15):5395. https://doi.org/10.3390/app10155395
Chicago/Turabian StyleGraf, Marius, Matthias Kuntz, Hermann Autenrieth, and Ralf Müller. 2020. "Investigation of Size Effects Due to Different Cooling Rates of As-Quenched Martensite Microstructures in a Low-Alloy Steel" Applied Sciences 10, no. 15: 5395. https://doi.org/10.3390/app10155395