Additives and thermal treatment influence on microstructure of nonferrous alloys

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• 作者：M. Krupiński ; B. Krupińska ; Z. Rdzawski…
• 关键词：Zinc alloys ; Thermo ; derivative analysis ; Cooling rate ; Alloying additives ; Latent heat ; Inoculation ; Multicomponent eutectic
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：120
• 期：3
• 页码：1573-1583
• 全文大小：2,566 KB
• 参考文献：1.Krajewski W. Research of phase transformation in high-aluminium zinc foundry alloys modified by Ti addition. Praktische Metallographie - Practical Metallography. 1999; Special Issue 30:9-1.<br>2.Górny Z, Sobczak J. Non-ferrous metals based novel materials in foundry practice. Cracow: ZA-PIS; 2005.<br>3.Krajewski W. DTA examinations of the solidification course of medium-aluminium zinc alloys modified with Ti. Metall Foundry Eng. 2000;26(2):143-. <br>4.Krupiński M, Krupińska B, Labisz K, Rdzawski Z, Borek W. Influence of cooling rate on crystallisation kinetics on microstructure of cast zinc alloys. J Therm Anal Calorim. 2014;118(2):1361-.View Article <br>5.Krupińska B, Labisz K, Rdzawski Z. Light and electron microscope investigations of cast Zn–Al alloys. Arch Mater Sci Eng. 2012;55(1):29-6.<br>6.Zhu YH. Phase transformations of eutectoid Zn–Al alloys. J Mater Sci. 2001;36:3973-0.View Article <br>7.Zhu YH, Hernandez RM. Banos L, based alloy. J Mater Sci. 1999;34:3653-.View Article <br>8.Dobrzański LA, Krupiński M, Labisz K, Krupińska B, Grajcar A. Phases and structure characteristics of the near eutectic Al–Si–Cu alloy using derivative thermo analysis. Mater Sci Forum. 2010;638-42:475-0.View Article <br>9.Dobrzanski LA, Maniara R, Sokolowski J, Kasprzak W, Krupinski M, Brytan Z. Applications of the artificial intelligence methods for modeling of the ACAlSi7Cu alloy crystallization process. J Mater Process Technol. 2007;192:582-.View Article <br>10.Krupińska B, Labisz K, Rdzawski Z. Crystallisation kinetics of the Zn–Al alloys modified with lanthanum and cerium. J Achiev Mater Manuf Eng. 2011;46(2):154-0.<br>11.Krupińska B, Dobrzański LA, Rdzawski Z, Labisz K. Cooling rate influence on microstructure of the Zn–Al cast alloy. Arch Mater Sci Eng. 2010;43(1):13-0.<br>12.Krupińska B, Labisz K, Dobrzański LA, Rdzawski Z. Crystallisation kinetics of Zn alloys modified with Ce, La, Sr, Ti, B. J Achiev Mater Manuf Eng. 2010;42(1/2):50-.<br>13.Konieczny J, Dobrzański LA, Labisz K, Duszczyk J. The influence of cast method and anodizing parameters on structure and layer thickness of aluminium alloys. J Mater Process Technol. 2004;157-58:718-3.View Article <br>14.Rusz S, Cizek L, Salajka M, Tylsar S, Kedron J, Michenka V, Donic T, Hadasik E, Klos M. Ultrafine grain refinement of AlMn1Cu and AZ31 alloys by SPD process. Arch Metall Mater. 2014;59(1):359-4. <br>15.Tański T, Labisz K, Dobrzańska-Danikiewicz AD, S?kala A. Strategic position of casting aluminium alloys and leading technologies of their manufacturing. Solid State Phenom. 2015;220-21:577-2.<br>16.Chen TJ, Hao Y, Sun J, Li YD. Effects of Mg and RE additions on the semi solid microstructure of a zinc alloy ZA27. Sci Technol Adv Mater. 2003;4:495-02.View Article <br>
• 作者单位：M. Krupiński (1) <br> B. Krupińska (1) <br> Z. Rdzawski (1) <br> K. Labisz (1) <br> T. Tański (1) <br><br>1. Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego Str 18A, 44-100, Gliwice, Poland <br>
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry<br>Sciences<br>Polymer Sciences<br>Physical Chemistry<br>Inorganic Chemistry<br>Measurement Science and Instrumentation<br>
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943

文摘

Although Zn alloys are a very widely used material, there is a need for investigations concerning the influence of thermal conditions on its microstructure and its properties, which makes it useful for the specific tasks it has to fulfil for mass-produced items manufactured by the metalworking industry, in the automotive industry, as well as in countless electronic components. One of the possibilities is to create finer microstructures and enhance their properties, to change their chemical composition by adding alloying additives, and inoculation using modifiers. So in this paper, investigation results are presented concerning the influence of chosen alloying additives, such as Sr, Ce and Ti–B on the measured and calculated thermal characteristics and microstructure of zinc alloys with the addition of aluminium and copper. Based on the results on the phase and chemical composition of the cast Zn–Al–Cu alloys, inoculated with Sr and Ti–B, no differences were detected in the phase composition of the investigated alloys, owing to changes in cooling rates, which were chosen for the sample cooling process. A small amount of added cerium caused the occurrence of new phases present in the microstructure. Modification of the Zn–Al–Cu alloy precipitates changes in the thermomorphology of the phase and the ‘tweed-type changes in the microstructure. Moreover, the addition of cerium causes a decrease in the temperature at the beginning (T b>Lb>) and the end of the solidification, as well as the occurrence of a multicomponent eutectic, which can be detected on the derivative curve.