Correlaciones entre parámetros térmicos, estructura y microdureza en aleaciones zinc-aluminio (za)
Abstract
En el presente trabajo se investigan las correlaciones entre los parámetros térmicos (velocidad de enfriamiento, velocidad y posición de los frentes de solidificación, gradientes de temperatura), el tipo de estructura (tamaño de grano, espaciamiento dendrítico) y la microdureza en muestras solidificadas direccionalmente de aleaciones Zn-Al (ZA). Se presentan correlaciones entre: la velocidad de enfriamiento y el ancho de los granos columnares, la velocidad de los frentes de solidificación versus la longitud de los granos columnares, la densidad de los granos equiaxiales y el gradiente de temperatura, el tamaño de grano, el espaciamiento dendrítico primario y secundario y las variaciones en microdureza.Downloads
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