Publication: Mechanical properties and microstructure of W/CuY and W/CuCrZr composites produced by hot isostatic pressing
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2019-09
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Elsevier
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Abstract
Fully dense W-15 wt%CuY and W-15 wt%CuCrZr composites have been produced by a powder metallurgy route and hot isostatic pressing. The consolidated materials show homogeneous distributions of pre-alloyed CuY and CuCrZr embedded in W phase. Y-enriched particles were found inside the CuY phase. Their mechanical behavior was studied under uniaxial compression from room temperature to 500 °C. W/CuY exhibited a higher value of the yield strength, but W/CuCrZr presented a larger compressive deformation. Both composites manifested strain hardening during plastic deformation. The deformed microstructure at 250 °C and 500 °C was characterized by electron backscatter diffraction (EBSD) measurements and nanoindentation. The correlation between the plastic deformation, grain size and misorientation distributions, has been revealed.
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Keywords
Composite, Copper, EBSD, Plastic deformation, Tungsten, Yttrium
Bibliographic citation
Eddahbi, M., Muñoz, A., Savoini, B. & Monge, M. (2019). Mechanical properties and microstructure of W/CuY and W/CuCrZr composites produced by hot isostatic pressing. Fusion Engineering and Design, vol. 146 B, pp. 1829–1833.