Metallurgical Strategy for Optimized Production of QT High-Strength and Abrasion-Resistant Steels
(Room 311)
07 May 19
11:00 AM
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11:30 AM
Optimized metallurgy for high-strength and abrasion-resistant quench and tempered (QT) steels is driven by the alloy design and hot rolling process prior to heat treatment. The final cross-sectional quenched martensite/bainite packet size is determined by the final hot-rolled austenite cross-sectional grain size and distribution and the presence of any fine Nb strain-induced precipitates. This strategy will be explained with examples from actual production of high-strength/abrasion-resistant steels used to develop 150-ton mining haul trucks.