Abstract
WNbMoVAlxCry RHEA series are consolidated via spark plasma sintering with using mechanically alloyed powders. Mechanical alloying of W NbMoVAlCr alloy was conducted for up to 8 hours at 2-hour intervals to determine the ideal alloying time. Mechanical alloying resulted in the formation of a single phase, with the disappearance of elemental peaks and flattening of peaks. XRD peaks revealed a body-centred cubic and Laves phases. SEM and point EDS results showed homogeneous distribution of elements. Mechanical alloying had a positive effect up to 6 hours, with the highest hardness value of 12.57 GPa. The highest compressive strength at room temperature was 1397 MPa, while the lowest strength at 900°C was 172 MPa. Al and Cr had no clear effect on hardness and compression strength, with no clear trend on improvement or reduction in mechanical properties.
Original language | English |
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Title of host publication | Materials Science Forum |
Publisher | Trans Tech Publications Ltd |
Pages | 33-39 |
Number of pages | 7 |
DOIs | |
Publication status | Published - 2024 |
Publication series
Name | Materials Science Forum |
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Volume | 1133 |
ISSN (Print) | 0255-5476 |
ISSN (Electronic) | 1662-9752 |
Bibliographical note
Publisher Copyright:© 2024 Trans Tech Publications Ltd, All Rights Reserved.
Keywords
- Compression Strength
- Refractory High Entropy Alloys
- Spark Plasma Sintering