RT Conference Proceedings
T1 Tensile and fracture characteristics of oxide dispersion strengthened Fe─12Cr produced by hot isostatic pressing
A1 Castro Bernal, María Vanessa de
A1 Garces Usan, José María
A1 Leguey Galán, Teresa
A1 Pareja Pareja, Ramiro
AB The mechanical characteristics of a model oxide dispersion strengthened (ODS) alloy with nominal composition Fe─12 wt%Cr─0.4 wt%Y₂O₃ were investigated by means of microhardness measurements, tensile tests up to fracture in the temperature range of 298─973 K, and fracture surface analyses. A non-ODS Fe─12 wt%Cr alloy was also studied to assess the real capacity of the oxide dispersion for strengthening the alloy. The materials were produced by mechanical alloying followed by hot isostatic pressing consolidation and heat treatment at 1023 K. The strengthening effect of the oxide nanodispersion was effective at all temperatures studied, although the tensile strength converges towards the one obtained for the reference alloy at higher temperatures. Moreover, the ODS alloys failed prematurely at T < 673 K due to the presence of Y-rich inclusions, as seen in the fracture surface of these alloys.
PB Elsevier
SN 0022-3115
YR 2011
FD 2011-10
LK https://hdl.handle.net/10016/19806
UL https://hdl.handle.net/10016/19806
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 (American United States).
NO Spanish Ministry of Science and Innovation (project ENE 2010-17462), the Comunidad de Madrid through the program ESTRUMAT-CM (Grant S0505/MAT/0077).
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RD 17 jul. 2024