Mostrar el registro sencillo del ítem

dc.rights.licenseAll rights reserveden_US
dc.contributor.authorRivera, Ramón
dc.contributor.authorColmenares, Franklyn
dc.contributor.authorLleonart Dávila, Giovanni
dc.contributor.authorLeal, David
dc.contributor.authorGaudier, Jorge
dc.contributor.authorGonzález Lizardo, Ángel E.
dc.contributor.authorLeal Quirós, Edbertho
dc.contributor.authorBurgos Saldaña, Gilmer
dc.date.accessioned2022-06-30T13:20:16Z
dc.date.available2022-06-30T13:20:16Z
dc.date.issued2008
dc.identifier.citationRivera, R. & Colmenares, F. & Lleonart, G. & Leal, D. & Gaudier, J. & González Lizardo, A. & Burgos Saldaña, G. & Leal Quirós, E. (2008).High Density Plasma Nitriding on Stainless Steel Alloys at PUPR-MC Plasma Machine. Politechne, 14(1), 15-23.en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12475/1607
dc.descriptionVolumen 14, Número 1, Mayo 2008en_US
dc.description.abstractA novel method of nitriding at high current levels at Polytechnic University of Puerto Rico Mirror Cusp plasma machine (PUPR-MC) has been performed. Nitrogen ions implantation or plasma nitriding increases the hardness at a surface level of stainless steel because of high plasma temperatures and high ion densities created in the chamber. Nitriding is the process of doping a crystalline metallic matrix with the presence of nitrogen ions; it was previously done in the past utilizing chemical processes with high acid densities at high temperatures. By using plasma nitriding procedure at PUPR-MC surface hardness is increased in 302/304 type stainless steel samples by exposing them to high ion density plasma at high vacuum. This method succesfully dopes the surface of the material with strengthening nitrogen ions, without the use of chemical procedures that sacrifice the resistance to corrosion of the given material. A 500 V negative bias is placed on the sample exposed to the nitrogen plasma, where high energy ions are therefore attracted and immersed into the metallic matrix microns of the stainless steel surface. This potential maintains a constant surface temperature at approximately 800°C. Plasma parameters including ion density and plasma temperature were diagnosed using Single Langmuir Probes. The stainless steel samples were the tested using scanning electron microscopy (SEM) and Vickers Micro-Hardness tests to determine the increment in the surface hardness of the material. The SEM showed a significant presence of nitrogen imbedded in the grains of the stainless steel surface.en_US
dc.language.isoenen_US
dc.publisherPolytechnic University of Puerto Ricoen_US
dc.relation.ispartofRevista Politechne;
dc.relation.haspartSan Juanen_US
dc.subject.lcshPolytechnic University of Puerto Rico--Subject headings--Unassigneden_US
dc.subject.lcshPolytechnic University of Puerto Rico--Faculty--Researchen_US
dc.subject.lcshPolytechnic University of Puerto Rico--Undergraduates--Researchen_US
dc.titleHigh Density Plasma Nitriding on Stainless Steel Alloys at PUPR-MC Plasma Machineen_US
dc.typeArticleen_US
dc.rights.holderEsta Junta Editorial y la Universidad Politécnica de Puerto Rico hacen constar y reconoce que los autores de los artículos, obras literarias y artísticas publicadas en esta Revista Politechnê, se reservan enteramente los derechos de autor y de publicación de los mismos para los efectos de cualquier eventualidad literaria, publicitaria o de cualquier índole.en_US


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

  • Revista Politechnê
    Revista multidisciplinaria de la Universidad Politécnica de Puerto Rico (Vol. 1 | Núm. 1 | Junio 1991 - Vol. 19 | Enero 2018)

Mostrar el registro sencillo del ítem