The increasing need for materials and steel in particular for specific applications has led to development of theories, models, software, and practices which are now of immense value in the design of steel. The world stood still recently as the first bulk nanostructured metal was produced by Tata Steel and Rolls Royce Plc. This underscores the strategic position of steel in propelling technology. This paper reviews the theories, development, properties and application of this class of iron alloys in engineering design.
Keywords: phase transformation, bainite, nanostructured, steel