Application of Physical Simulation for Developing New Steel Types

Abstract:

Processing of a large number of novel steel types, such as DP, TRIP, CP and TWIP, and high-strength low-carbon bainitic and martensitic DQ-T steels, have been developed based on physical simulation and modelling studies. Among stainless steels, guidelines for processing of ultra-fine grained austenitic stainless steels have been created. Physical simulation has been used by employing a Gleeble thermo-mechanical simulator to reveal the phenomena occurring in the hot rolling stage (the flow resistance, recrystallization kinetics and microstructure evolution), and in the cooling stage (CCT diagrams) for carbon steels and in short-term annealing of cold rolled metastable austenitic steels. Connecting these data with microstructures examined in optical and electron microscopes and resultant mechanical properties have improved the understanding on complex phenomena occurring in the processing of these steels and the role of numerous process variables in the optimization of enhanced mechanical properties.

• Periodical: Materials Science Forum (Volumes 575-578)
• Pages: 1002-1007
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.575-578.1002
• Online since: April 2008
• Authors: L. Pentti Karjalainen, Mahesh Chandra Somani, Atef S. Hamada
• Keywords: Bainitic Steel, CP Steel, DP Steel, Flow Stress, Martensitic Steel, Static Recrystallization, TRIP Steel, TWIP Steel

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