Stress rupture test of MAR-M509 alloy with structure refined by rapid resolidification

• Autorzy: Mróz M. , Orłowicz W. , Tupaj M. , Trytek A.
• Języki publikacji: EN

Abstrakty

EN

This study presents results of stress rupture test of MAR-M-509 cobalt alloy samples, as-cast and after surface refining with a concentrated stream of heat. Tests were conducted on samples of MAR-M-509 alloy castings, obtained using the lost-wax method. Casting structure refining was performed with the GTAW method in argon atmosphere, using the current I = 200 A and electrical arc scanning velocity vs = 100, 150, 200 and 250 mm/min. The effect of rapid resolidification of the MAR-M-509 alloy on the microstructure was examined and significant improvement in stress rupture test was observed.

Słowa kluczowe

EN

MAR-M509 alloy; rapid resolidification; microstructure; stress rupture test

PL

stop MAR M509; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 4
• Strony: 117--120
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Mróz M.

autor

Orłowicz W.

autor

Tupaj M.

autor

Trytek A.

• Department of Casting and Welding, Technical University of Rzeszów, ul. Wincentego Pola 2, 35-959 Rzeszów, Poland,

Bibliografia

• [1] Klopp W. D.: Non-Ferrous Alloys. Co. MAR-M-509. Aerospace Structural Metals Handbook, September, 1985.
• [2] Rypulak A., Orkisz M.: Widmo obciążeń turbinowych silników odrzutowych w trakcie realizacji misji lotniczych. Journal of Koness International Combustion Engines. Wyd. Naukowe Instytutu Lotnictwa, 2001.
• [3] Orłowicz W., Trytek A.: Effect of rapid solidification on sliding wear of iron castings. Wear, 254, 2003, 154-163.
• [4] Orłowicz W., Mróz M.: Microstructure and fatigue strength of A356 alloy casting refined on the surface by rapid crystallization. Zeitschrift für Metallkunde, vol. 94, 2003, 1320-1326.
• [5] Szczotok A., Szala J., Cwajna J., Hetmańczyk M., Skupień P.: Effect of cooling speed on primary structure of MAR-M509 cobalt-base superalloy. Proceedings of 9th European Congress for Stereology and Image Analysis and 7th STERMAT International Conference on Stereology and Image Analysis in Materials Science, Zakopane, 10-13 maj, 2005.
• [6] Szala J., Szczok A., Richter J., Cwajna J., Maciejny A.: Selection of methods for etching carbides in MAR-M509 cobalt-base superalloys and acquisition of their images. Materials Characterization, 56, 2006, 325-335.
• [7] Skupień P., Szala J.: Influence of solution heat treatment parameters on the quantity and morphology of M23C6 carbides in MAR M509 cobalt superalloy. Inżynieria Materiałowa nr 4, 2008, 358-361.