Fractography of fish-eye cracks in nitride steel speci- mens: assessment of residual fatigue life

• Autorzy: Slamecka K. , Kianicova M. , Pokluda J.
• Konferencja: Conference on Fracture Mechanics (XIII ; 5-7.09.2011 ; Opole ; Polska)
• Języki publikacji: EN

Abstrakty

EN

An assessment of the residual fatigue life of plasma-nitrided high-strength low-alloy steel specimens subjected to symmetrical in-phase bending-torsion loading has been performed. All specimens failed due to the internal fish-eye type of fracture initiated at non-metallic inclusions within the specimen interior. The deflection of the crack plane from the plane perpendicular to the specimen axis was almost negligible in the radial direction and varied as a function of the loading regime in the tangential direction. In all cases, the crack propagated predominantly under a local mode I loading.

Słowa kluczowe

EN

fractography; nitride steel; fatigue crack

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2011
• Tom: z. 99
• Strony: 53--54
• Opis fizyczny: Bibliogr. 2 poz.

Twórcy

autor

Slamecka K.

autor

Kianicova M.

autor

Pokluda J.

• Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic,

Bibliografia

• [1] SLÁMEČKA K., POKLUDA J., BONAVENTUROVÁ K., ČELKO L.: Microfractography of fish-eye fractures in nitrided steel, Chem. Listy, 2011, in print
• [2] SLÁMEČKA K., POKLUDA J., KIANICOVÁ M., MAJOR Š., DVOŘÁK I: Quantitative fractography of fish-eye crack formation un- der bending-torsion fatigue, Int. J. Fat. 32, 2010, pp. 921-928