Surface modification of the AZ91 magnesium alloy

• Autorzy: Strzelecka M. , Iwaszko J. , Malik M. , Tomczyński S.

Identyfikatory

DOI

10.1016/j.acme.2015.03.004

• Języki publikacji: EN

Abstrakty

EN

The main purpose of the study was to modify the surface layer of the AZ91 magnesium alloys with the use of the GTAW (Gas Tungsten Arc Welding) method. The remelting process was conducted with the use of an AC current with the concurrent cooling of the magnesium alloy in the liquid nitrogen bath. The assessment of the effectiveness of the treatment carried out with the use of the GTAW method was based on the analysis of the surface layer structure, and the investigation of hardness and the resistance to abrasion wear. Besides, the investigations of the corrosion resistance were carried out. The analysis of the treatment parameters combined with a macroscopic assessment and the structural changes in the surface layers allowed to distinguish some correlations attesting to the possibility of the remelting zone geometry shaping. The found structural effects of treatment such as significant refinement of the structure and its homogenization, as well as the positive results of corrosion investigations and mechanical tests proved that it is possible to achieve the intended research objectives and effectively modify magnesium alloys by the welding method.

Słowa kluczowe

EN

AZ91 magnesium alloy; surface remelting treatment; GTAW welding method

PL

stopy magnezu; obróbka powierzchniowa; spawanie łukowe

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. 15, no. 4
• Strony: 854--861
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Strzelecka M.

• Czestochowa University of Technology (CUT), Institute of Materials Engineering, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland

autor

Iwaszko J.

• Czestochowa University of Technology (CUT), Institute of Materials Engineering, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland

autor

Malik M.

• Czestochowa University of Technology (CUT), Institute of Chemistry, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland

autor

Tomczyński S.

• Czestochowa University of Technology (CUT), Institute of Foundry Engineering, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland

Bibliografia

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