Feasibility of Producing Directionally Transformed Martensite in Steel.
ARMY CONSTRUCTION ENGINEERING RESEARCH LAB CHAMPAIGN ILL
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The feasibility of and possible techniques for strengthening steel by using directional martensite are explored in this report. On the basis of an analysis of the austenite to martensite transformation, it appears that martensite can be oriented if a its parent, austenite, can first be oriented and b the activity of habit planes can be controlled. It is believed that the first of these can be accomplished by forming deformation andor annealing textures, and the second, by using a martensite morphology with a low habit plane multiplicity and straining in a specific crystallographic direction during transformation. Steels strengthened by this technique may obtain ultra-high strength and stiffness by a mechanism similar to fiber reinforcement. Applications for such a material include high-strength wires, protective construction and site hardening, and light-weight armor. Author
- Properties of Metals and Alloys