INVESTIGADORES
MONTECINOS ESPINOZA Susana De Los Angeles
artículos
Título:
Effect of grain size on the stress-temperature relationship in a beta CuAlBe shape memory alloy
Autor/es:
S. MONTECINOS; A. CUNIBERTI; R. ROMERO
Revista:
INTERMETALLICS
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2011 vol. 19 p. 35 - 38
ISSN:
0966-9795
Resumen:
The grain size dependence of the DO3-18R martensitic transformation start temperature (Ms) and start stress (σs) was investigated in a Cu-22.66Al-2.98Be (at%) alloy. Ms decreases and σs increases with the grain size decrease. The σs-T relationship is linear, however the slope depends on the grain size. Moreover, the zero-stress extrapolated temperature decreases with the grain size decrease and remains lower than Ms. Results are analyzed in a thermodynamical framework.
