RT Conference Proceedings
T1 Microstructure and temperature dependence of the microhardness of W-4V-1La₂O₃ and W-4Ti-1La₂O₃
A1 Savoini Cardiel, Begoña
A1 Martinez, J.
A1 Muñoz Castellanos, Ángel
A1 Monge Alcázar, Miguel Ángel
A1 Pareja Pareja, Ramiro
AB W–4V–1La₂O₃ and W–4Ti–1La₂O₃ (wt.%) alloys have been produced by mechanical alloying and subsequent hot isostatic pressing. Electron microscopy observations revealed that these alloys exhibit a submicron grain structure with a dispersion of La oxide nanoparticles. Large V or Ti pools with martensitic characteristics are found segregated in the interstices between the W particles of the respective alloys. Microhardness tests were carried out over the temperature range 300–1073 K in vacuum. The microhardness–temperature curve for W–4V–1La₂O₃ exhibited the expected decreasing trend with increasing temperature although the microhardness stayed constant between ~473 and 773 K. The W–4Ti–1La₂O₃  presented quite different temperature dependence with an anomalous microhardness increase for temperatures above ~473 K.
PB Elsevier
SN 0022-3115
YR 2013
FD 2013-11
LK https://hdl.handle.net/10016/19795
UL https://hdl.handle.net/10016/19795
LA eng
NO This study is presented of: The Fifteenth International Conference on Fusion Reactor Materials (ICFRM-15) was held October 16–22, 2011, at the Charleston Marriott Hotel in Charleston, South Carolina
NO The Spanish Ministry of Economy and Competitiveness (projectENE2012-39787-C06-05), the Comunidad de Madrid through theprogram ESTRUMAT-CM (Grant S2009/MAT-1[5]85), and the EuropeanCommission through the European Fusion Development
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RD 1 sept. 2024