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INTRODUCTION

ACHIEVING high strength with sufficient ductility in engineering alloys has been the holy grail for researchers over the years.[1,2] The automobile industry is a client for such materials with high strength and sufficient ductility. The use of materials with high specific strength helps in reducing the weight of automobiles, while higher formability aids in achieving complex shapes. In this context, high-manganese austenitic steel shows great potential to meet criterion of both high strength and sufficient formability.[3–5] Depending on the manganese (Mn) content of the steel, low stacking fault energy (SFE), transformation-induced plasticity (TRIP), and twinninginduced plasticity (TWIP) have been developed. The deformation behaviors of TRIP and TWIP steel are very different from each other. It is reported that very low SFE (cfcc

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