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Meeting MS&T21: Materials Science & Technology
Symposium Advancements in Steel Structural Refinement
Presentation Title Maximizing Strengthening Mechanisms in Continuously-annealed HSLA Steel
Author(s) Charles M. Enloe, Fabio D'Aiuto, Hardy Mohrbacher
On-Site Speaker (Planned) Charles M. Enloe
Abstract Scope Well-established practices exist for production of cold-rolled and continuously-annealed high strength low alloy (HSLA) steels as both coated and uncoated variants. Through utilization of standard processing techniques, the yield strength of cold-rolled HSLA steel is practically limited by numerous process and alloy design factors to 550 MPa and less. A production methodology is proposed to achieve greater strengths in cold-rolled and continuously annealed HSLA steels. This methodology utilizes both increased precipitation of microalloy carbides prior to continuous annealing and a subsequent annealing process in which recrystallization of ferrite is successfully suppressed prior to partial or full austenitizing. The resultant microstructure, as a consequence of enhanced precipitate and grain refinement strengthening, achieves greater strengths than those traditionally produced for automotive application of cold rolled HSLA steels. The implications of mass adoption of such enhanced cold-rolled HSLA steels are discussed - including the potential for partial replacement of intermediate strength AHSS.
Proceedings Inclusion? Planned: At-meeting proceedings


Maximizing Strengthening Mechanisms in Continuously-annealed HSLA Steel
Microalloyed Steel Precipitate Characterization by Automated TEM Image and EDS Analysis
New Modelling Tools for Nb Microalloyed Plate Rolling Design
The Capability of Severe Plastic Deformation to Achieve High Strength and Toughness in Two High Strength Steel Alloys, Austenitic FeMnAl and Martensitic AF9628

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