Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa

Esta investigación caracterizó muestras del acero 17-4PH nitruradas a plasma a una temperatura de 400ºC usando el tratamiento a plasma pulsado sin tela activa (DCPN) y con tela activa (ASPN). Siendo así estudiadas la nitruración con tela activa con la matriz en dos condiciones de partida diferente:...

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Autores:
Varela Larrotta, Sharys Ivonn
Tipo de recurso:
http://purl.org/coar/version/c_b1a7d7d4d402bcce
Fecha de publicación:
2016
Institución:
Universidad Industrial de Santander
Repositorio:
Repositorio UIS
Idioma:
spa
OAI Identifier:
oai:noesis.uis.edu.co:20.500.14071/34926
Acceso en línea:
https://noesis.uis.edu.co/handle/20.500.14071/34926
https://noesis.uis.edu.co
Palabra clave:
Nitruración A Plasma Sin Tela Activa (Dcpn)
Nitruración A Plasma Con Tela Activa (Aspn)
Solubilización
Envejecido
Martensita Expandida-N-Fe4N Y Nitruro De Cromo Cr2N.
This work aimed the characterization of samples of 17-4PH steel plasma nitrided at low temperature 400 °C using a conventional DC pulsed plasma source (DCPN) and by a new nitriding route so called Active Screen Plasma Nitriding (ASPN). Two initial conditions for the bulk steel were assessed: a solution treated condition and the combination of solubilization + precipitation hardening (PH) treatments. The concept of plasma nitriding at low temperatures has been conceived in order to avoid the precipitation of nitrides
which in turn impairs the corrosion resistance of the nitrided case. Additionally
the purpose of the active screen route is to avoid border effects that lead to formation of and inhomogeneous layer along the sample's surface. The characterization of the samples before and after the nitriding treatments were performed using optical and electronic microscopy
X-ray diffraction
Vickers microhardness and wavelength-dispersive X-ray spectroscopy (WDS)
the later for determination of nitrogen content profiles. The micromechanical properties of the produced cases were also characterized by means of instrumented linear sclerometry
providing their critical failure loads and friction coefficients. Results showed that the nitriding treatment with active screen produced homogeneous nitrided the nitrided case produced on the sample previously solution treated only provided lower values of hardness and nitrogen content in comparison to the PH sample. It was found that this difference could be explained due to the effect of copper on the chemical activity of nitrogen in the alloy. On other hand
in the DCPN nitrided samples it was observed the formation of an inhomogeneous case N and iron and chromium -Fe4N and Cr2N
respectively
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Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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oai_identifier_str oai:noesis.uis.edu.co:20.500.14071/34926
network_acronym_str UISANTADR2
network_name_str Repositorio UIS
repository_id_str
dc.title.none.fl_str_mv Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
dc.title.english.none.fl_str_mv Dc Pulsed Plasma Nitriding (Dcpn), Active Screen Plasma Nitriding (Aspn), Solution Treatment, Precipitation Hardening, Expanded Martensite-N, Nitrides (´-Fe4N And Cr2N).
title Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
spellingShingle Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
Nitruración A Plasma Sin Tela Activa (Dcpn)
Nitruración A Plasma Con Tela Activa (Aspn)
Solubilización
Envejecido
Martensita Expandida-N-Fe4N Y Nitruro De Cromo Cr2N.
This work aimed the characterization of samples of 17-4PH steel plasma nitrided at low temperature 400 °C using a conventional DC pulsed plasma source (DCPN) and by a new nitriding route so called Active Screen Plasma Nitriding (ASPN). Two initial conditions for the bulk steel were assessed: a solution treated condition and the combination of solubilization + precipitation hardening (PH) treatments. The concept of plasma nitriding at low temperatures has been conceived in order to avoid the precipitation of nitrides
which in turn impairs the corrosion resistance of the nitrided case. Additionally
the purpose of the active screen route is to avoid border effects that lead to formation of and inhomogeneous layer along the sample's surface. The characterization of the samples before and after the nitriding treatments were performed using optical and electronic microscopy
X-ray diffraction
Vickers microhardness and wavelength-dispersive X-ray spectroscopy (WDS)
the later for determination of nitrogen content profiles. The micromechanical properties of the produced cases were also characterized by means of instrumented linear sclerometry
providing their critical failure loads and friction coefficients. Results showed that the nitriding treatment with active screen produced homogeneous nitrided the nitrided case produced on the sample previously solution treated only provided lower values of hardness and nitrogen content in comparison to the PH sample. It was found that this difference could be explained due to the effect of copper on the chemical activity of nitrogen in the alloy. On other hand
in the DCPN nitrided samples it was observed the formation of an inhomogeneous case N and iron and chromium -Fe4N and Cr2N
respectively
title_short Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
title_full Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
title_fullStr Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
title_full_unstemmed Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
title_sort Estudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activa
dc.creator.fl_str_mv Varela Larrotta, Sharys Ivonn
dc.contributor.advisor.none.fl_str_mv Rincón Ortiz, Mauricio
Tschipptschin, Andre Paulo
dc.contributor.author.none.fl_str_mv Varela Larrotta, Sharys Ivonn
dc.subject.none.fl_str_mv Nitruración A Plasma Sin Tela Activa (Dcpn)
Nitruración A Plasma Con Tela Activa (Aspn)
Solubilización
Envejecido
Martensita Expandida-N-Fe4N Y Nitruro De Cromo Cr2N.
topic Nitruración A Plasma Sin Tela Activa (Dcpn)
Nitruración A Plasma Con Tela Activa (Aspn)
Solubilización
Envejecido
Martensita Expandida-N-Fe4N Y Nitruro De Cromo Cr2N.
This work aimed the characterization of samples of 17-4PH steel plasma nitrided at low temperature 400 °C using a conventional DC pulsed plasma source (DCPN) and by a new nitriding route so called Active Screen Plasma Nitriding (ASPN). Two initial conditions for the bulk steel were assessed: a solution treated condition and the combination of solubilization + precipitation hardening (PH) treatments. The concept of plasma nitriding at low temperatures has been conceived in order to avoid the precipitation of nitrides
which in turn impairs the corrosion resistance of the nitrided case. Additionally
the purpose of the active screen route is to avoid border effects that lead to formation of and inhomogeneous layer along the sample's surface. The characterization of the samples before and after the nitriding treatments were performed using optical and electronic microscopy
X-ray diffraction
Vickers microhardness and wavelength-dispersive X-ray spectroscopy (WDS)
the later for determination of nitrogen content profiles. The micromechanical properties of the produced cases were also characterized by means of instrumented linear sclerometry
providing their critical failure loads and friction coefficients. Results showed that the nitriding treatment with active screen produced homogeneous nitrided the nitrided case produced on the sample previously solution treated only provided lower values of hardness and nitrogen content in comparison to the PH sample. It was found that this difference could be explained due to the effect of copper on the chemical activity of nitrogen in the alloy. On other hand
in the DCPN nitrided samples it was observed the formation of an inhomogeneous case N and iron and chromium -Fe4N and Cr2N
respectively
dc.subject.keyword.none.fl_str_mv This work aimed the characterization of samples of 17-4PH steel plasma nitrided at low temperature 400 °C using a conventional DC pulsed plasma source (DCPN) and by a new nitriding route so called Active Screen Plasma Nitriding (ASPN). Two initial conditions for the bulk steel were assessed: a solution treated condition and the combination of solubilization + precipitation hardening (PH) treatments. The concept of plasma nitriding at low temperatures has been conceived in order to avoid the precipitation of nitrides
which in turn impairs the corrosion resistance of the nitrided case. Additionally
the purpose of the active screen route is to avoid border effects that lead to formation of and inhomogeneous layer along the sample's surface. The characterization of the samples before and after the nitriding treatments were performed using optical and electronic microscopy
X-ray diffraction
Vickers microhardness and wavelength-dispersive X-ray spectroscopy (WDS)
the later for determination of nitrogen content profiles. The micromechanical properties of the produced cases were also characterized by means of instrumented linear sclerometry
providing their critical failure loads and friction coefficients. Results showed that the nitriding treatment with active screen produced homogeneous nitrided the nitrided case produced on the sample previously solution treated only provided lower values of hardness and nitrogen content in comparison to the PH sample. It was found that this difference could be explained due to the effect of copper on the chemical activity of nitrogen in the alloy. On other hand
in the DCPN nitrided samples it was observed the formation of an inhomogeneous case N and iron and chromium -Fe4N and Cr2N
respectively
description Esta investigación caracterizó muestras del acero 17-4PH nitruradas a plasma a una temperatura de 400ºC usando el tratamiento a plasma pulsado sin tela activa (DCPN) y con tela activa (ASPN). Siendo así estudiadas la nitruración con tela activa con la matriz en dos condiciones de partida diferente: solamente solubilizada, y solubilizada más envejecida. La propuesta de la nitruración a baja temperatura es evitar la precipitación de nitruros que disminuyen la resistencia a la corrosión del acero, en paralelo la propuesta de la técnica con tela activa es evitar los defectos de borde originados por la nitruración sin tela activa. Para su evaluación fue realizada la caracterización microestrutural antes y después de la nitruración utilizando técnicas como microscopia óptica, microscopia electrónica de barrido (SEM), medidas de microdureza, difracción de rayos-X, determinación del porcentaje de nitrógeno en función de la distancia a la superficie de la muestra por espectrometría WDS de rayos- X, determinación de la carga critica de falla y coeficiente de fricción por medio de ensayo de esclerometria lineal instrumentada. Los resultados mostraron que el tratamiento de nitruración con tela activa formó una capa nitrurada por martensita expandida-N para las dos condiciones de partida diferente. Sin embargo, la muestra solamente solubilizada presentó menor dureza y porcentaje de nitrógeno en la capa nitrurada en comparación con la muestra envejecida. Esa diferencia en el contenido de nitrógeno puede ser atribuida al efecto del Cu en la actividad de N, debido a que el Cu esta disuelto en la matriz martensítica del acero solubilizado. Para la nitruración sin tela activa se formó una capa nitrurada no homogénea constituida por martensita expandida-N-Fe4N y nitruro de cromo Cr2N.
publishDate 2016
dc.date.available.none.fl_str_mv 2016
2024-03-03T22:43:11Z
dc.date.created.none.fl_str_mv 2016
dc.date.issued.none.fl_str_mv 2016
dc.date.accessioned.none.fl_str_mv 2024-03-03T22:43:11Z
dc.type.local.none.fl_str_mv Tesis/Trabajo de grado - Monografía - Pregrado
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dc.identifier.uri.none.fl_str_mv https://noesis.uis.edu.co/handle/20.500.14071/34926
dc.identifier.instname.none.fl_str_mv Universidad Industrial de Santander
dc.identifier.reponame.none.fl_str_mv Universidad Industrial de Santander
dc.identifier.repourl.none.fl_str_mv https://noesis.uis.edu.co
url https://noesis.uis.edu.co/handle/20.500.14071/34926
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identifier_str_mv Universidad Industrial de Santander
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dc.rights.uri.none.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0
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rights_invalid_str_mv Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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http://creativecommons.org/licenses/by-nc/4.0
Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)
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dc.publisher.none.fl_str_mv Universidad Industrial de Santander
dc.publisher.faculty.none.fl_str_mv Facultad de Ingenierías Fisicoquímicas
dc.publisher.program.none.fl_str_mv Ingeniería Metalúrgica
dc.publisher.school.none.fl_str_mv Escuela de Ingeniería Metalúrgica y Ciencia de Materiales
publisher.none.fl_str_mv Universidad Industrial de Santander
institution Universidad Industrial de Santander
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spelling Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by-nc/4.0Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)http://purl.org/coar/access_right/c_abf2Rincón Ortiz, MauricioTschipptschin, Andre PauloVarela Larrotta, Sharys Ivonn2024-03-03T22:43:11Z20162024-03-03T22:43:11Z20162016https://noesis.uis.edu.co/handle/20.500.14071/34926Universidad Industrial de SantanderUniversidad Industrial de Santanderhttps://noesis.uis.edu.coEsta investigación caracterizó muestras del acero 17-4PH nitruradas a plasma a una temperatura de 400ºC usando el tratamiento a plasma pulsado sin tela activa (DCPN) y con tela activa (ASPN). Siendo así estudiadas la nitruración con tela activa con la matriz en dos condiciones de partida diferente: solamente solubilizada, y solubilizada más envejecida. La propuesta de la nitruración a baja temperatura es evitar la precipitación de nitruros que disminuyen la resistencia a la corrosión del acero, en paralelo la propuesta de la técnica con tela activa es evitar los defectos de borde originados por la nitruración sin tela activa. Para su evaluación fue realizada la caracterización microestrutural antes y después de la nitruración utilizando técnicas como microscopia óptica, microscopia electrónica de barrido (SEM), medidas de microdureza, difracción de rayos-X, determinación del porcentaje de nitrógeno en función de la distancia a la superficie de la muestra por espectrometría WDS de rayos- X, determinación de la carga critica de falla y coeficiente de fricción por medio de ensayo de esclerometria lineal instrumentada. Los resultados mostraron que el tratamiento de nitruración con tela activa formó una capa nitrurada por martensita expandida-N para las dos condiciones de partida diferente. Sin embargo, la muestra solamente solubilizada presentó menor dureza y porcentaje de nitrógeno en la capa nitrurada en comparación con la muestra envejecida. Esa diferencia en el contenido de nitrógeno puede ser atribuida al efecto del Cu en la actividad de N, debido a que el Cu esta disuelto en la matriz martensítica del acero solubilizado. Para la nitruración sin tela activa se formó una capa nitrurada no homogénea constituida por martensita expandida-N-Fe4N y nitruro de cromo Cr2N.PregradoIngeniero MetalúrgicoStudy of stainless steel 17-4ph plasma nitrided at low temperature, using technology of active screen.application/pdfspaUniversidad Industrial de SantanderFacultad de Ingenierías FisicoquímicasIngeniería MetalúrgicaEscuela de Ingeniería Metalúrgica y Ciencia de MaterialesNitruración A Plasma Sin Tela Activa (Dcpn)Nitruración A Plasma Con Tela Activa (Aspn)SolubilizaciónEnvejecidoMartensita Expandida-N-Fe4N Y Nitruro De Cromo Cr2N.This work aimed the characterization of samples of 17-4PH steel plasma nitrided at low temperature 400 °C using a conventional DC pulsed plasma source (DCPN) and by a new nitriding route so called Active Screen Plasma Nitriding (ASPN). Two initial conditions for the bulk steel were assessed: a solution treated condition and the combination of solubilization + precipitation hardening (PH) treatments. The concept of plasma nitriding at low temperatures has been conceived in order to avoid the precipitation of nitrideswhich in turn impairs the corrosion resistance of the nitrided case. Additionallythe purpose of the active screen route is to avoid border effects that lead to formation of and inhomogeneous layer along the sample's surface. The characterization of the samples before and after the nitriding treatments were performed using optical and electronic microscopyX-ray diffractionVickers microhardness and wavelength-dispersive X-ray spectroscopy (WDS)the later for determination of nitrogen content profiles. The micromechanical properties of the produced cases were also characterized by means of instrumented linear sclerometryproviding their critical failure loads and friction coefficients. Results showed that the nitriding treatment with active screen produced homogeneous nitrided the nitrided case produced on the sample previously solution treated only provided lower values of hardness and nitrogen content in comparison to the PH sample. It was found that this difference could be explained due to the effect of copper on the chemical activity of nitrogen in the alloy. On other handin the DCPN nitrided samples it was observed the formation of an inhomogeneous case N and iron and chromium -Fe4N and Cr2NrespectivelyEstudio del acero inoxidable 17-4ph nitrurado a plasma a baja temperatura, usando la tecnología de tela activaDc Pulsed Plasma Nitriding (Dcpn), Active Screen Plasma Nitriding (Aspn), Solution Treatment, Precipitation Hardening, Expanded Martensite-N, Nitrides (´-Fe4N And Cr2N).Tesis/Trabajo de grado - Monografía - Pregradohttp://purl.org/coar/resource_type/c_7a1fhttp://purl.org/coar/version/c_b1a7d7d4d402bcceORIGINALCarta de autorización.pdfapplication/pdf215420https://noesis.uis.edu.co/bitstreams/6b25a9a5-d927-4fc4-b748-f2410aa435e4/downloaddb57ee4890d3022b27e71f8f22bfcd7fMD51Documento.pdfapplication/pdf3343942https://noesis.uis.edu.co/bitstreams/7d504514-a262-4dcb-b0d9-efec1b65c83f/download693b1d71e576c491c8f30bb4609afc56MD52Nota de proyecto.pdfapplication/pdf173852https://noesis.uis.edu.co/bitstreams/afb37f76-bcba-44cb-ace8-3d7932c41e15/download85c97aa3d1ac78877348131f1c0ade4dMD5320.500.14071/34926oai:noesis.uis.edu.co:20.500.14071/349262024-03-03 17:43:11.49http://creativecommons.org/licenses/by-nc/4.0http://creativecommons.org/licenses/by/4.0/open.accesshttps://noesis.uis.edu.coDSpace at UISnoesis@uis.edu.co