Ensayo de rayado al Aluminio AA1060-H18
Fecha
2016-07-23
Autores
Alvarez Machado, Felipe A.
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Editor
Universidad Central ‘‘Marta Abreu’’ de Las Villas. Facultad de Ingeniería Mecánica e Industrial. Departamento de Ingeniería Mecánica
Resumen
En el presente trabajo se exponen los principios básicos asociados a la resistencia al rayado de la superficie de un material. Se realizó el ensayo de rayado utilizando un indentador tipo Rockwell C a la superficie de un material de aluminio AA1060-H18 con comportamiento elastoplástico. Se realizaron tres rayas a cada una de las tres probetas variando la velocidad en cada una de las probetas y se efectuaron tres mediciones del ancho de la huella por cada raya para un total de nueve mediciones por probeta. De los principales resultados obtenidos se comprueba que la diferencia de las velocidades no afecta al ancho de la huella, aunque aparentemente con el aumento de la velocidad aumenta la dificultad para medir el ancho de la huella porque sus bordes son más irregulares. Los valores obtenidos de la dureza al rayado del material son razonables al compararlos con resultados de otros investigadores.
In this paper the basic principles associated to scratch resistance of the surface of a material are exposed. The scratch test was performed using a Rockwell C type indenter to the surface of an AA1060-H18 aluminum material with elastoplastic behavior. Three scratching were made at each of the three specimens varying the speed in each of the specimens and three measurements of the scratch width for each scratching for a total of nine measurements per specimen were made. The main results it’s found that the speed difference does not affect the width of the scratch, although apparently with increasing of the speed increases the difficulty of measuring the width of the scratch because the edges are more irregular. The values obtained from scratch hardness of the material are reasonable when compared with results from other researchers.
In this paper the basic principles associated to scratch resistance of the surface of a material are exposed. The scratch test was performed using a Rockwell C type indenter to the surface of an AA1060-H18 aluminum material with elastoplastic behavior. Three scratching were made at each of the three specimens varying the speed in each of the specimens and three measurements of the scratch width for each scratching for a total of nine measurements per specimen were made. The main results it’s found that the speed difference does not affect the width of the scratch, although apparently with increasing of the speed increases the difficulty of measuring the width of the scratch because the edges are more irregular. The values obtained from scratch hardness of the material are reasonable when compared with results from other researchers.
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Palabras clave
Desgaste Abrasivo, Rayado, Rozamiento, Norma ASTM G171-03