Evaluation of the Influence of Bainitic Transformation on some Mechanical Properties of Calcium Treated Cast iron
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20498#.VNHb9SzQrzE Author(s) L.E. aUmoru , J.A. Ali , A.A. Afonja Affiliation(s) Department of Metallurgical and Materials Engineering,Obafemi Awolowo University, Ile-Ife, Nigeria. . Nigeria Building and Road Research Institute (NIBRRI)Garki, Abuja . Department of Metallurgical and Materials Engineering,Obafemi Awolowo University, Ile-Ife, Nigeria. . ABSTRACT This work has investigated the effect of austempering variables on hardness, strength and toughness of 0.48wt. % calcium treated cast iron. The iron was subjected to varying austenitizing and isothermal transformation temperatures and times. Samples were austenitized for 15, 30, 45 and 60 minutes at each of the temperatures 850, 875, 900, 925 and 950 degrees centigrade. Also for 950℃ and 60 minutes of austenitizing conditions, samples of the 0.48wt. % calcium treated irons were isothermally ...