ISSN 2594-5327
65º Congresso ABM — Vol. 65, Num. 65 (2010)
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Commercially pure cast aluminium was subjected to equal channel angular pressing (ECAP) at room temperature using routes A, Bc and C. Microhardness distribution maps were produced on sections of extruded billets after one, two, three and four passes for each of the processing routes. It was found that the mean hardness increased significantly already after the first pass. With subsequent passes, the hardness increase was smaller but the hardness distribution became narrower, indicating increasing homogeneity. For route Bc, a slight decrease in average hardness was observed after the fourth pass. The mean hardness after four passes was highest for the route C sample, followed by the route A and route Bc samples.
Commercially pure cast aluminium was subjected to equal channel angular pressing (ECAP) at room temperature using routes A, Bc and C. Microhardness distribution maps were produced on sections of extruded billets after one, two, three and four passes for each of the processing routes. It was found that the mean hardness increased significantly already after the first pass. With subsequent passes, the hardness increase was smaller but the hardness distribution became narrower, indicating increasing homogeneity. For route Bc, a slight decrease in average hardness was observed after the fourth pass. The mean hardness after four passes was highest for the route C sample, followed by the route A and route Bc samples.
Palavras-chave
Aluminium, Equal Channel Angular Pressing, Hardness, Homogeneity
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Como citar
Lathabai, Sri; Vargas, Margarita; Matthieu, Larroque; Urbani, Claude.
The Influence of Processing Conditions on Hardness Homogeneity Evolution in Commercially Pure Cast Aluminium Processed by Equal Channel Angular Pressing,
p. 5271-5277.
In: 65º Congresso ABM,
Rio de Janeiro,
2010.
ISSN: 2594-5327, DOI 10.5151/2594-5327-33781
