Third Generation Advanced High Strength Steels (AHSS) require higher strength and formability alongside a lower alloying element content for reduced energy consumption and CO2 emissions during production, transportation, use and recyclability. Steels with small amounts of alloying elements such as V, Mo, Nb, Ti, (also called micro-alloyed steels), are potential candidate materials fitting these requirements by forming nano size precipitates. Quantification of precipitate evolution during steel processing is therefore essential to understand the effect of micro alloying elements on the strengthening of steels. This proposal is a part of an ongoing EPSRC funded (£600K from Sep. 2014-Sep. 2017) project, which aims to develop new micro-alloyed steels with enhanced strength. This project is collaboration between the University of Warwick, the Diamond-Manchester Collaboration, and Tata steel.