2021 Nashville AISTech

Effects of Steel Chemistry and Reheating Temperature on Prior Austenite Grain Size (Room 208 B)

29 Jun 21
11:30 AM - 12:00 PM

Tracks: Metallurgy - Processing, Products & Applications: Physical Metallurgy of Steels I

Speaker(s): Hanok Tekle, Missouri University of Science and Technology; Dengqi Bai, SSAB Americas; Eric Lynch, SSAB Americas; Jacob Mineart, SSAB Iowa Inc.

In modern microalloyed steels, Ti and Nb are often added to control the as-reheated prior austenite grain size, the temperature window for controlled rolling, and for precipitation strengthening. In addition to the effects of Ti and Nb, slab reheat temperature also has a strong effect on the as-reheated prior austenite grain size. In the present study, the combined effects of steel chemistry and slab reheat temperature on the as-reheated prior austenite grain size were investigated.