|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Advanced High Strength Steels IV
||Influence of Prior Processing on the Response to Quenching & Partitioning
||Casey Gilliams, John G. Speer, Kip Findley, Richard Thiessen
|On-Site Speaker (Planned)
Quenched and partitioned (Q&P) steels are martensite/austenite high strength, formable stee1s employed for manufacture of lighter vehicle structures. Optimization of heat treat process variables has involved efforts to maximize the amount of retained austenite and the carbon concentration of the austenite. Few studies have been reported that examine the influence of “upstream” processing steps on the heat treating response, microstructure and performance of Q&P steels. Thus, the influence of retained austenite characteristics on the properties of Q&P steels were investigated using a 0.17C-2.8Mn-1.5Si steel with systematic variations in key processing conditions (hot band coiling temperature, and hot band thickness and associated cold reduction). The influence of prior processing and microstructure on the heat treating response are investigated using Q&P processing conditions representative of continuous galvanizing. Resulting microstructures and tensile properties are reported.
||Planned: Supplemental Proceedings volume