The microstructure and crack resistance of low-carbon Cr-Ni-V steel for high loaded pistons

• Autorzy: Avdijeva T.
• Konferencja: Conference on Fracture Mechanics (XIII ; 5-7.09.2011 ; Opole ; Polska)
• Języki publikacji: EN

Abstrakty

EN

Low-carbon Cr-Ni-V steel specimens were austenitized at 810°C to 960°C for 30 min followed by isothermal quenching into a salt bath at the temperature range of 300–360 °C for different time (60, 90 and 120 min) to obtain structures with ferrite and various bainite morphologies. SEM studies showed that by increasing the austempering temperature, bainite structures varies from lower to upper bainite. Impact crack and hardness tests presented that increasing the austempering temperature from 300 °C to 360 °C leads to a changing in hardness and impact energy. Fractography of charpy impacted specimens showed ductile behavior for all austempering temperatures.

Słowa kluczowe

EN

microstructure; crack resistance; low-carbon; steel

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2011
• Tom: z. 99
• Strony: 14--14
• Opis fizyczny: .

Twórcy

autor

Avdijeva T.

• Sofia University Sofia, Bulgaria,