precipitates in Fe-15Mn-10Al-5Ni-0.8C (wt.%) steel (as highlighted in section 2) . Most interestingly, it was shown that (Ni, Al)-rich B2 precipitates (in B2s Fe-Mn-Al-Ni-C steels) exhibit a higher hardness as compared to that of (Fe, Al)-rich B2 precipitates (in Fe-Mn-Al-C steels). This may be explained on the basis of the higher bond strength of Ni-Al bond as compared to that of Fe-Al bond. The aforementioned observations (from Ref. )) demonstrate that Ni not only influences phase evolution but also influences the nanomechanical properties of B2 phase. precipitation in these steels (as briefly highlighted in section 2). However, there still remain a number of unexplored avenues which need to be addressed before utilising the structural properties of Fe-Mn-Al-Ni-C lightweight steels in industrial applications (especially, automotive applications). This necessitates a collaboration of both fundamental and industrial research for the purpose of overcoming the present challenges in these steels. In the following section, challenges in both fundamental and industrial research have been highlighted.