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Development Of High Strength High Toughness Third Generation Advanced High Strength Steels., Codrick John Martis
Development Of High Strength High Toughness Third Generation Advanced High Strength Steels., Codrick John Martis
Wayne State University Dissertations
Third generation advanced high strength steels (AHSS's) are emerging as very important engineering materials for structural applications. These steels have high specific strength and thus will contribute significantly to weight reduction in automotive and other structural component. In this investigation two such low carbon low alloy steels (LCLA) with high silicon content (1.6-2wt %) has been developed. These two steel alloys were subjected to single step and two step austempering in the temperature range of 260-399oC to obtain desired microstructures and mechanical properties. Austempering heat treatment was carried out for 2 hours in a molten salt bath. The microstructures were …