Publication: Estudio de la viabilidad de aceros sinterizados reforzados con malla de acero inoxidable
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2011-02
Defense date
2011-02-14
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Abstract
La idea que se lleva a cabo en este proyecto es la de introducir un nuevo tipo de refuerzo en una matriz pulvimetalúrgica y comprobar qué cambios en las propiedades sufre la matriz al añadir dicho refuerzo. Con la finalidad de mejorar sobre todo propiedades mecánicas, se le ha añadido un refuerzo a las probetas para tracción, fabricadas a base de polvos de hierro (ASC100.29 y ASC100.29+0.6%C) y a base de polvos de acero inoxidable austenítico (304LHD), introduciendo una malla metálica hecha de acero inoxidable AISI304L. Después de sinterizar las probetas con las atmósferas usuales para el tipo de matriz, se han realizado diferentes medidas y ensayos para identificar y cuantificar los efectos sobre las propiedades mecánicas y físicas que se dan al introducir esta malla metálica, además de realizar un análisis metalográfico. Se han medido la resistencia a tracción, el límite elástico, la dureza y la densidad. __________________________________________________________________________________________________________
This master thesis purpose is to insert a new kind of reinforcement into a metallic powder matrix in order to check which changes take place in mechanical and physical properties. With the main purpose of improving mechanical properties, a reinforcement has been added to the tensile strength test samples. These samples were made of atomized iron (ASC100.29 and ASC100.29+0.6%C) and 304LHD stainless steel. The reinforcement is made of a metallic mesh made of AISI304L stainless steel. After sinterizing with the usual atmospheres for every kind of matrix, different tests have been made to check and measure the effects on the mechanical and physical properties which take place; furthermore, a metallographic analysis was carried out. After sinterizing, hardness (HV10), density, UTS and Yield strength have been measured and compared to the reference samples.
This master thesis purpose is to insert a new kind of reinforcement into a metallic powder matrix in order to check which changes take place in mechanical and physical properties. With the main purpose of improving mechanical properties, a reinforcement has been added to the tensile strength test samples. These samples were made of atomized iron (ASC100.29 and ASC100.29+0.6%C) and 304LHD stainless steel. The reinforcement is made of a metallic mesh made of AISI304L stainless steel. After sinterizing with the usual atmospheres for every kind of matrix, different tests have been made to check and measure the effects on the mechanical and physical properties which take place; furthermore, a metallographic analysis was carried out. After sinterizing, hardness (HV10), density, UTS and Yield strength have been measured and compared to the reference samples.
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Aceros, Aceros sinterizados, Acero inoxidable, Resistencia de materiales, Pulvimetalurgia