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Estimation of Activation Energy for Calculating the Hot Workability Properties of Metals

G. Kugler
M. Knap
H. Palkowski
R. Turk


Puni tekst: engleski pdf 148 Kb

str. 267-272

preuzimanja: 1.270

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Sažetak

The hot workability of metals is most commonly described by the hyperbolic-sine constitutive equation, which relates stress with strain rate and temperature. In the present paper a simple method for calculating the parameters of this equation is introduced. Hot compression experiments of an AA6082 aluminium alloy were carried out to check the reliability of the proposed method. Based on analysis of the experimental results, a simple semi-empirical equation to describe the flow stress as a function of strain, strain rate and temperature was formulated. A good agreement between the predicted and the experimental data was achieved.

Ključne riječi

Hrčak ID:

128107

URI

https://hrcak.srce.hr/128107

Datum izdavanja:

1.10.2004.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.923 *