RT info:eu-repo/semantics/article
T1 Effect of chemical composition and sintering conditions on the mechanical properties of sintered duplex stainless steels
A1 Martín Pedrosa, Fernando
A1 García Cabezón, Ana Cristina
A1 Blanco Val, María Yolanda
K1 Hardness measurement
K1 Mechanical characterization
K1 Steel
K1 Powder metallurgy
K1 Hardening
AB Duplex stainless steels were obtained through powder metallurgy technology from austenitic AISI 316L and ferritic AISI 430L powders mixed in different amounts to obtain ratios of  austenite/ferrite of 25/75, 50/50 and 75/25. Prepared powder mixes were compacted at 650 or 750 MPa and sintered in N2–H2 atmosphere (95%-5%) at several sintering conditions and with three sintering cooling rates (furnace, gas and water). Mechanical properties were evaluated using tensile testing and macro–microhardness. The cooling rate was the main factor affecting the microstructure. A full microstructural study for the three cooling rates has been performed. The mechanical behaviour was a function of the cooling rate and the chemical composition. For furnace cooling, the sample with 75/25 of austenite/ferrite powders showed the best result. A hardening effect for the water cooling process was observed with the duplex stainless steels.
PB Elsevier
SN 0921-5093/$
YR 2011
FD 2011
LK http://uvadoc.uva.es/handle/10324/22078
UL http://uvadoc.uva.es/handle/10324/22078
LA eng
NO Materials Science and Engineering A, 2011, 528,  8500–8511
NO Producción Científica
DS UVaDOC
RD 17-jul-2024