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Volume 14
Issue 19
10.3390/ma14195862
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Article

Ultrashort Sintering and Near Net Shaping of Zr-Based AMZ4 Bulk Metallic Glass

by
Łukasz Żrodowski
1,2,*,
Rafał Wróblewski
1,*,
Tomasz Choma
1,2,*,
Tomasz Rygier
1,3,
Marcin Rosiński
3,
Bartosz Morończyk
1,
Maweja Kasonde
3,
Marcin Leonowicz
1,
Jakub Jaroszewicz
1,
Mateusz Ostrysz
2,
Wojciech Łacisz
2,
Piotr Błyskun
1 and
Karolina Pomian
1
1
Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141 St., 02-507 Warsaw, Poland
2
R&D Department, AMAZEMET Sp. z o.o., Al. Jana Pawła II 27, 00-867 Warsaw, Poland
3
R&D Department, GeniCore Sp. z o.o., 133 Wolczynska Street, 01-919 Warsaw, Poland
*
Authors to whom correspondence should be addressed.
Materials 2021, 14(19), 5862; https://doi.org/10.3390/ma14195862
Submission received: 25 August 2021 / Revised: 24 September 2021 / Accepted: 27 September 2021 / Published: 7 October 2021
(This article belongs to the Topic Metallurgical and Materials Engineering)
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Abstract

The GeniCore Upgraded Field Assisted Sintering Technology U-FAST was applied to the sintering of a commercial Zr-based bulk metallic glass powder AMZ4. The XRD, SEM and DSC analysis of the sintered compacts showed the benefit of the U-FAST method as an enabler for the production of fully amorphous samples with 100% relative density when sintering at 420 °C/480 s (693 K/480 s) and 440 °C/ 60 s (713 K/480 s). The hardness values for fully amorphous samples, over HV1 519, surpass cast materials and 1625 MPa compressive strengths are comparable to commercial cast products. The advantage of the U-FAST technology in this work is attributed to the high heating and cooling rates inherent to ultra-short pulses, which allow to maintain metastable structures and achieve better temperature control during the process. Increasing sintering temperature and time led to the crystallization of the materials. The geometry and material of the dies and punch determine the thermal inertia and pressure distribution inside the compacts, thus affecting the properties of the near net shape NNS compacts made using the U-FAST device.
Keywords: spark plasma sintering; bulk metallic glasses; rapid sintering; SPS spark plasma sintering; bulk metallic glasses; rapid sintering; SPS
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MDPI and ACS Style

Żrodowski, Ł.; Wróblewski, R.; Choma, T.; Rygier, T.; Rosiński, M.; Morończyk, B.; Kasonde, M.; Leonowicz, M.; Jaroszewicz, J.; Ostrysz, M.; et al. Ultrashort Sintering and Near Net Shaping of Zr-Based AMZ4 Bulk Metallic Glass. Materials 2021, 14, 5862. https://doi.org/10.3390/ma14195862

AMA Style

Żrodowski Ł, Wróblewski R, Choma T, Rygier T, Rosiński M, Morończyk B, Kasonde M, Leonowicz M, Jaroszewicz J, Ostrysz M, et al. Ultrashort Sintering and Near Net Shaping of Zr-Based AMZ4 Bulk Metallic Glass. Materials. 2021; 14(19):5862. https://doi.org/10.3390/ma14195862

Chicago/Turabian Style

Żrodowski, Łukasz, Rafał Wróblewski, Tomasz Choma, Tomasz Rygier, Marcin Rosiński, Bartosz Morończyk, Maweja Kasonde, Marcin Leonowicz, Jakub Jaroszewicz, Mateusz Ostrysz, and et al. 2021. "Ultrashort Sintering and Near Net Shaping of Zr-Based AMZ4 Bulk Metallic Glass" Materials 14, no. 19: 5862. https://doi.org/10.3390/ma14195862

APA Style

Żrodowski, Ł., Wróblewski, R., Choma, T., Rygier, T., Rosiński, M., Morończyk, B., Kasonde, M., Leonowicz, M., Jaroszewicz, J., Ostrysz, M., Łacisz, W., Błyskun, P., & Pomian, K. (2021). Ultrashort Sintering and Near Net Shaping of Zr-Based AMZ4 Bulk Metallic Glass. Materials, 14(19), 5862. https://doi.org/10.3390/ma14195862

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