Effects of laser surface melting on crystallographic texture, microstructure, elastic modulus and hardness of Ti???30Nb???4Sn alloy

dc.creatorFANTON, LEONARDO
dc.creatorLIMA, NELSON B. de
dc.creatorENCINAS, EMILIO R.
dc.creatorBORR??S, VICENTE A.
dc.creatorAFONSO, CONRADO R.M.
dc.creatorFOGAGNOLO, JO??O B.
dc.date2020
dc.date2020-10-19T12:31:05Z
dc.date2020-10-19T12:31:05Z
dc.date.accessioned2023-09-28T14:16:24Z
dc.date.available2023-09-28T14:16:24Z
dc.identifier1003-6326
dc.identifierhttp://repositorio.ipen.br/handle/123456789/31451
dc.identifier2
dc.identifier30
dc.identifier10.1016/S1003-6326(20)65221-9
dc.identifier0000-0002-6444-9224
dc.identifier78.12
dc.identifier79.25
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9001674
dc.descriptionThe biocompatibility of orthopedic implants is closely related to their elastic modulus and surface properties. The objective of this study was to determine the effects of cold rolling, recrystallization and laser surface melting (LSM) on the microstructure and mechanical properties of a biphase (?????+??) Ti???30Nb???4Sn alloy. X-ray diffraction (XRD) texture analysis of the cold-rolled substrate revealed the [302]?????//ND texture component, while analysis of the recrystallized substrate showed the [302]?????//ND and [110]?????//ND components. The ??-phase texture could not be directly measured by XRD, but the presence of the [111]??//ND texture component was successfully predicted by considering the orientation relationship between the ????? and ?? phases. Nanoindentation measurements showed that the elastic modulus of the cold-rolled substrate (63 GPa) was lower than that of the recrystallized substrate (74 GPa). Based on the available literature and the results presented here, it is suggested that this difference is caused by the introduction of crystal defects during cold deformation. The combined nanoindentation/EBSD analysis showed that the nanoindentation results are not affected by crystal orientation. LSM of the deformed alloy produced changes in hardness, elastic modulus and crystallographic texture similar to those produced by recrystallization heat treatment, creating a stiffness gradient between surface and substrate.
dc.descriptionCoordena????o de Aperfei??oamento de Pessoal de N??vel Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionCAPES: 33003017
dc.descriptionCNPq: 233006/2014-1
dc.descriptionFAPESP: 11/19982-2
dc.format392-404
dc.relationTransactions of Nonferrous Metals Society of China
dc.rightsopenAccess
dc.subjecttitanium alloys
dc.subjectrolling
dc.subjectcold working
dc.subjectlasers
dc.subjectmelting
dc.subjectsurface properties
dc.subjecttexture
dc.subjectrecrystallization
dc.titleEffects of laser surface melting on crystallographic texture, microstructure, elastic modulus and hardness of Ti???30Nb???4Sn alloy
dc.typeArtigo de peri??dico
dc.coverageI


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