Evaluation of fractures in MAR-M509 alloy samples after fatigue strength tests

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

Abstrakty

EN

The paper presents the result of fracture analysis in MAR-M509 samples after high-cycle bending fatigue strength tests. Microstructural tests were carried out with a scanning electron microscope. To identify carbide phases a quantitative analysis of the chemical composition was made. The fracture surface and the surface in a plane perpendicular to the fracture surface were observed. It was discovered that the crack initiation and propagation occurs on carbide separations.

Słowa kluczowe

EN

MAR-M509 alloy; high-cycle fatigue strength; fracture

PL

stop MAR M509; wytrzymałość na zmęczenie; pęknięcie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 3
• Strony: 115--118
• Opis fizyczny: Bibliogr. 4 poz., il., rys.

Twórcy

autor

Mróz M.

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

autor

Orłowicz W.

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

autor

Tupaj M.

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

Bibliografia

• [1] Sims C.T., Hagel W.C.: The Superalloy. Wily, New York, 1992.
• [2] Jiang L., Brooks C.R., Liaw P.K., Wang H., Rawn C.J., Klarstrom D.L.: High-frequency metal fatigue: the high-cycle fatigue behavior of ULTIMET® alloy. Materials Science and Engineering A, A314, 2001, 162-175.
• [3] Yang F.M., Sun X.F., Guan H.R., Hu Z.Q.: On the low cycle fatigue deformation of K 40S cobalt-base superalloy at elevated temperature. Materials Letters, vol. 57, 2003, 2823-2828.
• [4] Jiang L., Brooks C.R., Liaw P.K., Dunlop J., Rawn C.J., Peascoe R.A., Klarstrom D.L.: Low cycle fatigue behavior of ULTIMET® alloy. Metallurgical and Materials Transactions A, vol.35A, March, 2004, 785-795.