METALLURGICAL & MATERIALS TRANSACTIONS A 36A (2005) 3281-3289 1 In-situ Observations of Lattice Parameter Fluctuations in Austenite and Transformation to Bainite S. S. Babu Formerly at Metals and Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831 USA, Currently at Edison Welding Institute, Columbus, Ohio 43017, USA E. D. Specht and S. A. David Metals and Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831 USA E. Karapetrova and P. Zschack Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois 61801, USA M. Peet and H. K. D. H. Bhadeshia Department of Materials Science and Metallurgy University of Cambridge, CB23QZ UK Corresponding Author: S. S. Babu, suresh_babu@ewi.org; Tel: (614) 688-5206 Final version after the acceptance: Revised version after the comments from the reviewers of Metallurgical and Materials Transactions 2005 The submitted manuscript has been authored by a contractor of the U.S. Government under contract DE- AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes.