|About this Abstract
||Materials Science & Technology 2012
||Steel Product Metallurgy and Applications
||The Development of Third Generation Advanced High Strength Steel by Dual Stabilization Heat Treatment: A Testimonial to Gary Michal's Profound Understanding of Steel Metallurgy
||Hao Qu, Arthur H. Heuer
|On-Site Speaker (Planned)
Gary Michal unfortunately passed away on May 11, 2012 at the tender age of 58. Earlier this year, he was honored by being selected as the 2012 Zay Jeffries Lecturer by the Cleveland Chapter of ASM; his lecture was entitled “Advanced High Strength Steel: Three Generations.” The first portion of this presentation will summarize the historical aspects reviewed in Michal’s Zay Jeffries lecture. The second portion of the presentation will describe recent experiments aimed at establishing the maximum amount of retained austenite that can be achieved in advanced high strength steel (AHSS), under the constraints of a lean composition and a processing regimen consistent with current commercial practice. In excess of 30 vol. pct. retained austenite was obtained in quenched and partitioned (Q&P) 0.3 C - 4.0 Mn steels subjected to a dual stabilization heat treatment (DSHT). Optimum properties – tensile strength of 1600 MPa and 20% total elongation – were observed in a partially austenitized steel, indicating the benefits realizable from intercritical annealing.
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