Bake hardening behavior of advanced high strength steel grades
Advanced high strength steels (AHSS) have been developed combining high strength and formability, allowing for lightweighting of vehicle structural components. These AHSS components are exposed to paint baking treatments, following straining induced from part forming, which may lead to increased in-service component performance due to a strengthening mechanism known as bake hardening (BH). This study quantified the BH behavior of select AHSS grades. Materials investigated were press hardenable steels (PHS) 1500 and 2000; transformation induced plasticity (TRIP) aided bainitic ferrite (TBF) 1000 ...
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