Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent

Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent

AISI 316L austenitic stainless steels are very common in the industry. Large amounts of this material are discarded as a chisel and can subsequently be used as recycled material for casting. In marine environments (highly corrosive), this type of steel presents intragranular corrosion, specifically...

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Autori principali: Ruiz Ochoa, Juan Antonio, Ramos Azpeitia, Mitzuo Osvaldo, Castañeda Robles, Iván Erick, Hernández Rivera, José Luis, Paz González, Juan Antonio
Natura: Online
Lingua:spa
Pubblicazione: Universidad Autónoma de Baja California 2020
Accesso online:https://recit.uabc.mx/index.php/revista/article/view/42
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spelling recit-article-422022-10-17T18:46:35Z Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent Reducción de la fase de ferrita en aceros inoxidables austeníticos mediante el control del contenido de equivalentes de Cr-Ni Ruiz Ochoa, Juan Antonio Ramos Azpeitia, Mitzuo Osvaldo Castañeda Robles, Iván Erick Hernández Rivera, José Luis Paz González, Juan Antonio Austenitic Stainless Steels Ferrite Schaeffler Diagram Schoefer Diagram Aceros Inoxidables Austeníticos Ferrita Diagrama de Schaeffer Diagrama de Schoefer AISI 316L austenitic stainless steels are very common in the industry. Large amounts of this material are discarded as a chisel and can subsequently be used as recycled material for casting. In marine environments (highly corrosive), this type of steel presents intragranular corrosion, specifically in one of its phases, in the ferrite, so it is preferred to keep it at the lowest possible proportion (<1%), but usually it is found around the 12% of it. If a casting is required to transport a pressurized fluid from AISI 316L steel, it should be performed according to considerations described in ASTM A351 Standard.  We find that CF3M steel is the most similar in terms of elemental chemical proportions of its components. Therefore, the Schaeffler and Schoefer diagrams were used to reduce the content of "equivalent ferrite" by at least 90%, making adjustments in the casting by modifying the Ni and Cr percentages. Los aceros inoxidables austeníticos AISI 316L son muy comunes en la industria. Grandes cantidades de este material se desechan como chatarra y pueden utilizarse posteriormente como material reciclado para la colada. En ambientes marinos (altamente corrosivos), este tipo de acero presenta corrosión intragranular, específicamente en una de sus fases, en la ferrita, por lo que se prefiere mantenerla en la menor proporción posible (<1%), pero normalmente se encuentra alrededor del 12%. Si se requiere que una pieza de fundición de acero AISI 316L transporte un fluido presurizado, debe realizarse de acuerdo con las consideraciones descritas en la norma ASTM A351. En este trabajo, se encontró que el acero CF3M tiene mayor solicitud en términos de proporciones químicas elementales de sus componentes. Por lo tanto, se utilizaron los diagramas de Schaeffler y Schoefer para reducir el contenido de "ferrita equivalente" en al menos el 90%, haciendo ajustes en la fundición modificando los porcentajes de Ni y Cr. Universidad Autónoma de Baja California 2020-08-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research article Artículo de investigación application/pdf text/html application/xml https://recit.uabc.mx/index.php/revista/article/view/42 10.37636/recit.v23113117 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 2 No. 3 (2019): July-September; 113-117 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 2 Núm. 3 (2019): Julio-Septiembre; 113-117 2594-1925 spa https://recit.uabc.mx/index.php/revista/article/view/42/66 https://recit.uabc.mx/index.php/revista/article/view/42/86 https://recit.uabc.mx/index.php/revista/article/view/42/172 Copyright (c) 2019 Juan Antonio Ruiz Ochoa, Mitzuo Osvaldo Ramos Azpeitia, Iván Erick Castañeda Robles, José Luis Hernández Rivera, Juan Antonio Paz González http://creativecommons.org/licenses/by/4.0
institution RECIT
collection OJS
language spa
format Online
author Ruiz Ochoa, Juan Antonio
Ramos Azpeitia, Mitzuo Osvaldo
Castañeda Robles, Iván Erick
Hernández Rivera, José Luis
Paz González, Juan Antonio
spellingShingle Ruiz Ochoa, Juan Antonio
Ramos Azpeitia, Mitzuo Osvaldo
Castañeda Robles, Iván Erick
Hernández Rivera, José Luis
Paz González, Juan Antonio
Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
author_facet Ruiz Ochoa, Juan Antonio
Ramos Azpeitia, Mitzuo Osvaldo
Castañeda Robles, Iván Erick
Hernández Rivera, José Luis
Paz González, Juan Antonio
author_sort Ruiz Ochoa, Juan Antonio
title Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
title_short Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
title_full Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
title_fullStr Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
title_full_unstemmed Reduction of ferrite phase in austenitic stainless steels by controlling content of Cr-Ni equivalent
title_sort reduction of ferrite phase in austenitic stainless steels by controlling content of cr-ni equivalent
description AISI 316L austenitic stainless steels are very common in the industry. Large amounts of this material are discarded as a chisel and can subsequently be used as recycled material for casting. In marine environments (highly corrosive), this type of steel presents intragranular corrosion, specifically in one of its phases, in the ferrite, so it is preferred to keep it at the lowest possible proportion (<1%), but usually it is found around the 12% of it. If a casting is required to transport a pressurized fluid from AISI 316L steel, it should be performed according to considerations described in ASTM A351 Standard.  We find that CF3M steel is the most similar in terms of elemental chemical proportions of its components. Therefore, the Schaeffler and Schoefer diagrams were used to reduce the content of "equivalent ferrite" by at least 90%, making adjustments in the casting by modifying the Ni and Cr percentages.
publisher Universidad Autónoma de Baja California
publishDate 2020
url https://recit.uabc.mx/index.php/revista/article/view/42
_version_ 1792095363517120512

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