Paswan, Dayanand and Mistry, D and Sahoo, K L and Srivastava, V C (2013) Development of Iron-based Closed-Cell Foams by Powder Forging and Rolling. Journal of Materials Engineering and Performance, 22(8) (IF-0.915). pp. 2201-2209.
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In the present investigation, an attempt has been made to develop in situ sandwich Fe-based foams using powder forging and rolling. Several metal carbonates are ﬁrst studied by thermo gravimetric analysis to ﬁnd out their suitability to be used as foaming agent for iron-based foams. Barium carbonate is found to be the most promising foaming agent among other suitable options studied such as SrCO3, CaCO3, MgCO3, etc. The effects of process parameters such as precursor composition, sintering temperature, foaming temperature and time, and content of foaming agent have been studied. The microstructural characteristics of the sintered precursor have been studied by means of optical and scanning electron microscopy. It was found that a good pore structure can be obtained using 2-3% C in Fe and 3% BaCO 3 as foaming agent and by foaming at around 1350 C for 3-6 min.
|Uncontrolled Keywords:||carbonates, forging and rolling, metal foam, porosity, powder, sintering|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Dr. V.C. Srivastava|
|Deposited On:||03 Jul 2013 16:32|
|Last Modified:||12 Jan 2018 10:18|
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