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Effect of V-Ti on the Microstructure a.d a.ra.ive Wea. Beha.ior of 6CrC Ca.t Steel Mill Ba.ls

Journa. of Minera.s a.d Ma.eria.s Cha.a.teriza.ion a.d Engineering 2014年第5期2卷 383-391页

作者： S. I. Ma.dona.o-Ruiz P. Orozco-González V. H. Ba.ta.a.-Hernández a. bedolla-jacuinde M. a. L. Hernández-Rodríguez Instituto de Investiga.iones Meta.úrgica. Universidad Michoacana Morelia México Unida. a.a.émica.de Ingeniería Universidad Autónoma de Zacatecas Zacatecas México Universida. a.tónoma.de Nuevo León Monterrey México

Iron-chromium ca.t a.loys a.e ba.ica.ly a.ra.ive wea. resista.t ma.eria.s pa.ticula.ly employed in mining industry;these a.loys a.e often utilized in the ma.ufa.ture of milling ba.ls. In pa.ticula., high Cr a.d high C ca.t a.loys ha.e been subjected of significa.t resea.ch;for insta.ce, most reports ha.e been a.dressed on a.a.yzing the rela.ion between microstructure a.d the a.ra.ive wea. beha.ior;however, there exist a.reduced number of reports on rela.ively low Cr a.d low C ca.t a.loys. In this resea.ch, five low Cr ca.t steels conta.ning a.ditions of V a.d Ti were melted in a. open a.mosphere induction furna.e. Compa.isons on the morphology, size, type a.d distribution of ca.bides were ca.ried through optica. microscopy, SEM a.d XRD. Ha.dness testing wa. employed a. room tempera.ure with the purpose of correla.e to wea. beha.ior. a.la.ora.ory pilotpla.t ba.l-mill set with a.ba.ch of ore wa. utilized in order to eva.ua.e the a.ra.ive wea. resista.ce. a.cording to microstructure observa.ions, a.ma.tensitic prima.y ma.rix wa. revea.ed in a.l specimens. The fra.tion of M7C3 a.d M3C interdendritic eutectic ca.bides va.ied a.cording to a.loying level. Further results indica.ed tha. va.ia.ions in the sha.e a.d size of M7C3 a.d M3C a.ong with the presence of V a.d Ti ca.bides influenced on the a.ra.ive wea. beha.ior of low Cr ca.t steel mill ba.ls.

关键词： Wea.-Resista.ce Grinding-Media Cr-C Ca.t-Steel

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Corrosion a.d tribocorrosion beha.ior of Ti6a.4V/xTiN composites for biomedica. a.plica.ions

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Tra.sa.tions of Nonferrous Meta.s Society of China 2022年第2期32卷 540-558页

作者： J.CHÁVEZ O.JIMÉNEZ D.BRa.O-Ba.CENa. L.OLMOS F.a.Va.a.O-HERNÁNDEZ M.a.GONZÁLEZ a.bedolla-jacuinde M.FLORES Depa.ta.ento de Ingeniería.Mecánica.Eléctrica CUCEIUniversidad de GuadalajaraBlvd.Marcelino García Barragán#1421GuadalajaraC.P.44430México Depa.ta.ento de Ingeniería.de Proyectos CUCEIUniversidad de GuadalajaraJoséGuadalupe Zuno#48Los BelenesZapopanC.P.45150México Depa.ta.ento de Ingeniería.de Proyectos CUCEIUniversidad de Guadalajara-CONACyTBlvd.Marcelino García Barragán#1421GuadalajaraC.P.44430México Instituto de Investiga.iones en Ciencia. de la.Tierra INICITUniversidad Michoacana de San Nicolás de HidalgoAv.Francisco J.Mujica S/NCiudad UniversitariaMoreliaMichoacánC.P.58030México Unida. a.a.émica.de Ingeniería.I Universidad Autónoma de ZacatecasAv.López Valverde 801ZacatecasZacatecasC.P.98060México Instituto de Investiga.iones Meta.úrgica. IIMMUniversidad Michoacana de San Nicolás de HidalgoEdificio‘‘U-5’’Ciudad UniversitariaMoreliaMichoacánC.P.58030México

The corrosion a.d tribocorrosion beha.ior of Ti6a.4V/xTiN(x=0,5,10 a.d 15,vol.%)composites fa.rica.ed by solid-sta.e sintering a.d their rela.ionship with the microstructure a.d microha.dness were *** body conditions such a. a.tempera.ure of 37℃ a.d a.simula.ed body fluid were *** ma.n results demonstra.ed a.microstructura. cha.ge ca.sed by theα-Ti sta.iliza.ion due to solid-solution of nitrogen(N)into the tita.ium(Ti)la.tice,producing a.ma.imum ha.dening effect up to 109%for the Ti64 ma.rix by using 15 vol.%*** potentia.s of composites cha.ged to more noble va.ues with the TiN pa.ticle a.dition,while corrosion current density of sa.ples increa.ed a. a. effect of the rema.ning porosity,decrea.ing the corrosion resista.ce of ***,cha.ges to a.less pa.sive beha.ior were observed for sa.ples with 15 vol.%*** non-pa.sive beha.ior of composites resulted in the reduction of the potentia. drops during rubbing in tribocorrosion ***,a. improvement of up to 88%of the wea. ra.e of composites wa. seen from the solid-solution *** results a.lowed to understa.d the rela.ionship between composition a.d sintering pa.a.eters with the improved tribocorrosion performa.ce of ma.eria.s.

关键词： Ti64 a.loy composites powder meta.lurgy microstructure corrosion tribocorrosion

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