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Ultrafine-grained Zn–Mg–Sr alloy synthesized by mechanical alloying and spark plasma sintering
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SYSNO ASEP 0565086 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ultrafine-grained Zn–Mg–Sr alloy synthesized by mechanical alloying and spark plasma sintering Author(s) Nečas, D. (CZ)
Kubásek, J. (CZ)
Pinc, Jan (FZU-D) ORCID
Marek, I. (CZ)
Donik, Č. (SI)
Paulin, I. (SI)
Vojtěch, D. (CZ)Number of authors 7 Article number 8379 Source Title Materials. - : MDPI
Roč. 15, č. 23 (2022)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords metals and alloys ; biomaterials ; mechanical alloying ; sintering ; nanostructure ; compression test OECD category Materials engineering Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000896139000001 EID SCOPUS 85143803724 DOI 10.3390/ma15238379 Annotation Zinc materials are considered promising candidates for bioabsorbable medical devices used for the fixation of broken bones or stents. Materials for these applications must meet high mechanical property requirements. One of the ways to fulfil these demands is related to microstructure refinement, particularly the decrease in grain size. In the present work, we combine two powder metallurgy techniques (mechanical alloying—MA, and spark plasma sintering—SPS) to prepare Zn–1Mg–0.5Sr nanograin material. The microstructure of compacted material consisted of Zn grains and particles of Mg2Zn11 intermetallic phases from 100 to 500 nm in size, which resulted in high values of hardness and a compressive strength equal to 86 HV1 and 327 MPa, respectively. In this relation, the combination of the suggested techniques provides an innovative way to form extremely fine microstructures without significant coarsening during powder compaction at increased temperatures. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0336629
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