Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
CORRELATION BETWEEN THERMAL VARIABLES, SECONDARY DENDRITIC SPACING AND MICROHARDNESS OF THE AL-1% FE DESCENDANT UNDIRECTIONALLY SOLIDIFIED ALLOY
Submission Author:
Francisco Charles , PB
Co-Authors:
Francisco Charles, Robson Lima, Diego Lima, Manoel Neto, Claudio Siqueira
Presenter: Diego Lima
doi://10.26678/ABCM.COBEM2019.COB2019-2400
Abstract
The aim of this paper is to present an a experimental stdy that aimed to analyze the tehermal variables and their influence on the secondary dendritic spacing and microhardness of a unidirectionally descending solidified Al-1%Fe alloy. It was found that during the alloy solification process, the dendritic spacings increase with the decrease of the solidification velocity, VL, and the cooling rate, TR, (both importante termal variables in the solidification process), which resulted in a decrease of microhardness.
Keywords
Secondary dendritic spacing, Microhardness, Solidification
