INVESTIGADORES
SCHVEZOV Carlos Enrique
artículos
Título:
The effect of structure on tensile properties of directionally solidified Zn-based alloys
Autor/es:
A. E. ARES; C. E. SCHVEZOV
Revista:
JOURNAL OF CRYSTAL GROWTH
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 318 p. 59 - 65
ISSN:
0022-0248
Resumen:
The mainobjectiveofthisstudywastomeasurethermal(coolingrates,temperaturegradientsandvelocitiesoftheliquidusandsolidusisotherms),structural(grainsizeandprimaryandsecondarydendriticarmspacings)andtensileparameters(maximumtensilestrength(MTS),yieldstrength(YS)andultimatetensilestrength(UTS))inzincaluminum(ZA)hypoeutectic(Zn3wt%Al)andhypereutectic(Zn10 wt%Al,Zn15wt%Al,Zn20wt%Al,Zn30wt%Al,Zn37wt%AlandZn50wt%Al)alloysdirec-tionallysolidified,whichpresentcolumnar,equiaxedandcolumnar-to-equiaxedtransition(CET)structures.ThedifferenttypesofstructureswereanalyzedwithopticalandScanningElectronMicroscopy(SEM). Correlationsbetweentemperaturegradient,coolingrate,localsolidificationtime,grainsizeanddendriticspacingsandtensiletestsparametersarepresentedanddiscussed.Theresultsshowtheinfluenceofconcentration,microstructuralarrangementandthermalconditionsonthemechanicalpropertiesduringthesolidificationprocess.
