Investigation of eutectic transformation of Zn−Al alloy by DTA |
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| Authors: | B. Macha A. Namysło |
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| Affiliation: | (1) Technical University of Opole, ul. Mikołajczyka 5, 45-233 Opole, Poland |
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| Abstract: | The paper discusses the investigation of crystallization of metals and alloys by differential thermal analysis (DTA). It was assumed that this method allows determination of the mechanism and kinetics of volumetric crystallization underiso conditions (e.g. anisothermal) on the basis of the parameters of the equation expressing an integral form of the DTA curve. From DTA, a course of eutectic transformation was determined for a technical Zn?Al alloy containing 4wt% Al. Investigations were carried out under continuous cooling at various rates and the kinetics parameters were determined with the KEKAM equation:-ln(1-x)=kl n |
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| Keywords: | alloy DTA eutectic transformation Zn− Al alloy |
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