Evaluation of Harmonic Structure Obtained in Mechanically Milled Powders and Pulse Plasma Sintered Compacts of Austenitic Steel
Abstract
:1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
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- soft mechanical milling conditions applied, resulted in the formation of harmonic structure in the processed powders, i.e., plastically deformed and refined (crystallite size around 30 nm) layers were formed (shell),
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- additionally, phase transformation of austenite into ferrite was observed due to strain introduced during milling,
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- the harmonic structure was preserved in the sintered samples, thus the final structure consisted of microcrystalline cores embedded in the nanocrystalline matrix,
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- the influence of the applied sintering temperature manifested in density and hardness increase rather than in phase composition,
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- sintering processes restored the phase composition existing before milling, i.e., austenite with some contribution of ferrite.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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C | Mn | Si | Ni | Cr | Mo | Cu |
---|---|---|---|---|---|---|
0.01 | 1.8 | 0.9 | 10.5 | 19.9 | 0.15 | 0.10 |
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Oleszak, D.; Sadurska, A.; Cieślak, G. Evaluation of Harmonic Structure Obtained in Mechanically Milled Powders and Pulse Plasma Sintered Compacts of Austenitic Steel. Metals 2021, 11, 386. https://doi.org/10.3390/met11030386
Oleszak D, Sadurska A, Cieślak G. Evaluation of Harmonic Structure Obtained in Mechanically Milled Powders and Pulse Plasma Sintered Compacts of Austenitic Steel. Metals. 2021; 11(3):386. https://doi.org/10.3390/met11030386
Chicago/Turabian StyleOleszak, Dariusz, Aleksandra Sadurska, and Grzegorz Cieślak. 2021. "Evaluation of Harmonic Structure Obtained in Mechanically Milled Powders and Pulse Plasma Sintered Compacts of Austenitic Steel" Metals 11, no. 3: 386. https://doi.org/10.3390/met11030386