The isothermal decomposition of austenite in the bainite region

The isothermal decomposition of austenite in the bainite region has been examined. The progress of the transformation in several hypoeutectoid and eutectoid steels was investigated metallographically from a qualitative point of view. A survey was made of the information available on the initiation, course, and end product of the transformation. The factors entering into the transformation were examined separately, their temperature-dependence and interactions investigated. A theory of the decomposition of austenite was proposed, and this theory examined in the light of the phenomena associated with the isothermal and anisothermal progress of the transformation.Applied Science, Faculty ofMining Engineering, Keevil Institute ofGraduat