Mandal, D and Ghosh, M and Pal, J and De, P K and Ghosh Chowdhury, S and Das, S K and Das, Goutam and Ghosh, Sukomal (2008) Influence of Austempering Temperature on Microstructure and Mechanical Properties of Cast Fe-Si-Mn-VSteel. In: 60 Annual Technical Meeting, November, 15-16, 2008, NML, Jamshedpur.
The present investigation was carried out to examine the influence of austempering temperature on the micro-structure and mechanical properties of a low carbon, high silicon (C-0.13%, Si-1.2%, Mn-1%, V-0.08%) cast steels. The Induction melted casting block was homogenized at 1000°C for 6 hrs. The samples for microstructure and the tens-ile specimens were prepared from the cast steel block according to ASTM standards and were imparted three diff-erent austempering heat treatments to produce different microstructure. The samples are austenitisation at 900°C for 30 minute and then rapidly quenched to a salt bath maintained at temperature 350/400/450°C for 10 minute and then finally air cooled. The microstructure were observed under optical and TEM microscopy. show that UTS decreases but % El increases with increasing apstempering tempe-rature. The 400°C austempering temperature exhibited the best combination of UTS and %EI at room temperature (UTS-663 MPa, EL-26%) with revealing microstructure of bainite and retained austenite.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Microstructure; bainite; austenite; mechanical properties|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||06 Jul 2012 14:35|
|Last Modified:||06 Jul 2012 14:35|
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