Microstructure of WE43 casting magnesium alloy

• Autorzy: Rzychoń T. , Kiełbus A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: WE43 is a high-strength magnesium alloy characterized by good mechanical properties both at an ambient and elevated temperature (up to 300 degrees centigrade). It contains mainly yttrium and neodymium. The aim of this paper is to present the results of research on the microstructure of the WE43 magnesium alloy in an as-cast condition. Design/methodology/approach: For the microstructure observation, a Reichert metallographic microscope MeF2 and HITACHI S-3400N scanning electron microscope with a Thermo Noran EDS equipped with SYSTEM SIX were used. A qualitative phase analysis was performed with a JEOL JDX-7S diffractometer. Microstructural examinations were performed JEOL 3010 transmission electron microscope. Findings: Based on the investigation carried out it was found that the microstructure of WE43 alloy after continuous casting consists of alpha-Mg matrix and irregular precipitates of Mg41Nd5, rectangular particles of MgY phase, particles of Mg24Y5, longitudinal precipitates of beta(Mg14Nd2Y) compound at grain boundaries and the grain interiors. All of these phases contain yttrium and neodymium. Reserch limitations/implications: Future researches should contain investigations of the influence of heat treatment parameters on microstructure, corrosion resistance and mechanical properties of WE43 alloy. Practical implications: WE43 magnesium alloy is used in the aircraft industry, for wheels, engine castings, gear box castings and rotor heads in helicopters. Results of investigation may be useful for development casting technology of the Mg-Y-Nd alloys. Originality/value: The results of the researches make up a basis for the next investigations of magnesium alloys with addition of Y and Nd designed to exploitation at temperature to 300 degrees centigrade.

Słowa kluczowe

EN

metallic alloys; electron microscopy; WE43 magnesium alloy; microstructure

PL

stopy metaliczne; mikroskopia elektronowa; stop magnezu WE43; mikrostruktura

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 21, nr 1
• Strony: 31--34
• Opis fizyczny: Bibligr. 18 poz., fot., rys., tab.

Twórcy

autor

Rzychoń T.

autor

Kiełbus A.

• Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland,

Bibliografia

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