Formation of Structure and Properties in Casting Processes on the Example of AZ91 Magnesium Alloy

• Autorzy: Augustyn B. , Szymanek M. , Kapinos D. , Boczkal S. , Korczak P.

Identyfikatory

DOI

10.2478/afe-2014-0034

• Języki publikacji: EN

Abstrakty

EN

Contemporary materials engineering requires the use of materials characterised by high mechanical properties, as these precisely properties determine the choice of material for parts of machinery and equipment. Owing to these properties it is possible to reduce the weight and, consequently, the consumption of both material and energy. Trying to meet these expectations, the designers are increasingly looking for solutions in the application of magnesium alloys as materials offering a very beneficial strength-to-weight ratio. However, besides alloying elements, the properties are to a great extent shaped by the solidification conditions and related structure. The process of structure formation depends on the choice of casting method forced by the specific properties of casting or by the specific intended use of final product. The article presents a comparison of AZ91 magnesium alloys processed by different casting technologies. A short characteristic was offered for materials processed by the traditional semi-continuous casting process, which uses the solidification rates comprised in a range of 5 - 20⁰C/s, and for materials made in the process of Rapid Solidification, where the solidification rate can reach 106⁰C/s. As a result of the casting process, a feedstock in the form of billets and thin strips was obtained and was subjected next to the process of plastic forming. The article presents the results of structural analysis of the final product. The mechanical properties of the ø7 mm extruded rods were also evaluated and compared.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; magnesium alloy; AZ91 alloy; RS process; mechanical properties

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; stop magnezu; stop AZ91; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 2
• Strony: 43--48
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Augustyn B.

• Institute of Non Ferrous Metals, Light Metals Division, 19 Pilsudskiego Street, 32-050 Skawina, Poland

autor

Szymanek M.

• Institute of Non Ferrous Metals, Light Metals Division, 19 Pilsudskiego Street, 32-050 Skawina, Poland

autor

Kapinos D.

• Institute of Non Ferrous Metals, Light Metals Division, 19 Pilsudskiego Street, 32-050 Skawina, Poland

autor

Boczkal S.

• Institute of Non Ferrous Metals, Light Metals Division, 19 Pilsudskiego Street, 32-050 Skawina, Poland

autor

Korczak P.

• Institute of Non Ferrous Metals, Light Metals Division, 19 Pilsudskiego Street, 32-050 Skawina, Poland

Bibliografia

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