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Revista de Metalurgia
Article . 2003 . Peer-reviewed
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Revista de Metalurgia
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Revista de Metalurgia
Article . 2003
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https://dx.doi.org/10.60692/xt...
Other literature type . 2003
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Other literature type . 2003
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Obtención de materiales antifricción hierro-arrabio-latón utilizando residuos de virutas de arrabio

الحصول على مواد مضادة للاحتكاك من رذاذ الحديد والنحاس باستخدام نفايات نشارة حديد الخنزير
Authors: S. N. Nasamov; N. Krivij; Heinrich Wilhelm Gudenau; Alexander Babich; L. García; A. Formoso; A. Cores;

Obtención de materiales antifricción hierro-arrabio-latón utilizando residuos de virutas de arrabio

Abstract

Las piezas base hierro y acero, obtenidas por pulvimetalurgia, tienen gran utilización en la industria del automóvil y de equipos domésticos. El presente trabajo está dedicado al estudio de las propiedades antifricción de materiales de composición hierro-arrabio-latón, aglomerados mediante prensado y sinterización, obtenidos con mezclas de polvos de hierro, residuos industriales de virutas de arrabio, latón, talco y azufre. Los experimentos fueron hechos utilizando la tecnología de prensado en frío, utilizando una matriz fluida, sin empleo de lubricante sólido. Posteriormente, se realizó una sinterización a temperatura de 1.200 °C en condiciones isotérmicas, en atmósfera de nitrógeno, en la zona de sinterización durante una hora. Las propiedades físico-mecánicas y antifricción aumentan, en casi dos veces, como resultado del drenaje activo de los gases desde el molde. El estudio de la microestructura de los materiales sinterizados demuestra que existe cementita libre entre los límites de partículas y alrededor de los poros. Se observan grandes aglomeraciones de inclusiones oscuras, compuestas de grafito, zinc y óxidos de hierro, que son centros de tensiones en el material, disminuyendo su resistencia y, por consiguiente, la resistencia a la fricción durante el rozamiento sin lubricante.

Keywords

Metal Matrix Composites: Science and Applications, Effects of Cryogenic Treatment on Material Properties, Materials Science, residuos, FOS: Mechanical engineering, Friction and Wear, materiales compuestos, pulvimetalurgia, Humanities, Engineering, sinterización, Sintering, Sinterización, Powder metallurgy, Materials Chemistry, Metal Powders, Pulvimetalurgia, Powder Metallurgy and Compaction Processes, Polvos de hierro, Materiales compuestos, Composites, Mining engineering. Metallurgy, Mechanical Engineering, Physics, TN1-997, FOS: Humanities, Powder Metallurgy, Waste products, Friction Stir Processing, Cold Compaction, Physical Sciences, polvos de hierro, Residuos, Iron powders, Art

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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