Publication result detail

Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering

BŘEZINA, M.; HASOŇOVÁ, M.; WASSERBAUER, J.; DOLEŽAL, P.; FINTOVÁ, S.

Original Title

Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering

English Title

Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering

Type

WoS Article

Original Abstract

Field-assisted sintering is a modern approach to novel magnesium materials preparation; however, it is unclear whether it is better to sinter green compact or loose powder. This work focuses on preparing bulk materials from loose and cold-compacted magnesium powder through a field-assisted sintering technique - spark plasma sintering (SPS). Green compacts were prepared under a series of compacting pressures from 100 MPa to 500 MPa. SPS was performed at 400 degrees C, 500 degrees C, and 600 degrees C applying additional pressure of 100 MPa during the sintering process. Prepared materials were analysed regarding their microstructure, hardness, and micmhardness and through the three-point bending test and fractography. The green compacts porosity decreased with increased cold-compaction pressure. The SPS positively affected porosity and mechanical properties only in loose powder and the lowest cold-compacted green compacts. Increasing cold compaction pressure of the green compacts above 200 MPa is therefore unfavourable for further SPS processing.

English abstract

Field-assisted sintering is a modern approach to novel magnesium materials preparation; however, it is unclear whether it is better to sinter green compact or loose powder. This work focuses on preparing bulk materials from loose and cold-compacted magnesium powder through a field-assisted sintering technique - spark plasma sintering (SPS). Green compacts were prepared under a series of compacting pressures from 100 MPa to 500 MPa. SPS was performed at 400 degrees C, 500 degrees C, and 600 degrees C applying additional pressure of 100 MPa during the sintering process. Prepared materials were analysed regarding their microstructure, hardness, and micmhardness and through the three-point bending test and fractography. The green compacts porosity decreased with increased cold-compaction pressure. The SPS positively affected porosity and mechanical properties only in loose powder and the lowest cold-compacted green compacts. Increasing cold compaction pressure of the green compacts above 200 MPa is therefore unfavourable for further SPS processing.

Keywords

Magnesium powder metallurgy; SPS; Three-point bending; Hardness; Microhardness; Microstructure

Key words in English

Magnesium powder metallurgy; SPS; Three-point bending; Hardness; Microhardness; Microstructure

Authors

BŘEZINA, M.; HASOŇOVÁ, M.; WASSERBAUER, J.; DOLEŽAL, P.; FINTOVÁ, S.

RIV year

2022

Released

19.06.2021

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

2352-4928

Periodical

Materials Today Communications

Number

28

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://reader.elsevier.com/reader/sd/pii/S2352492821005602?token=FD3F65E51E954BF326E2C2D24E3C2E28CFA745F225554DC7BD06778BEB70B3A4E67D0714567F6DA6F230724D1FC98BC4&originRegion=eu-west-1&originCreation=20211109142815

BibTex

@article{BUT173090,
  author="Matěj {Březina} and Michaela {Hasoňová} and Jaromír {Wasserbauer} and Pavel {Doležal} and Stanislava {Fintová}",
  title="Mechanical and structural properties of bulk magnesium materials prepared via spark plasma sintering",
  journal="Materials Today Communications",
  year="2021",
  number="28",
  pages="1--8",
  doi="10.1016/j.mtcomm.2021.102569",
  url="https://reader.elsevier.com/reader/sd/pii/S2352492821005602?token=FD3F65E51E954BF326E2C2D24E3C2E28CFA745F225554DC7BD06778BEB70B3A4E67D0714567F6DA6F230724D1FC98BC4&originRegion=eu-west-1&originCreation=20211109142815"
}