Mechanical Properties and Applications of a New Stainless TWIP Steel

  • P. E. Di NunzioEmail author
  • F. Ruffini
  • R. Guerra
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


A new austenitic stainless steel, Fe–18Cr–Mn–Ni–Cu deforming by mechanical twinning, has been developed to improve the mechanical properties of low-Ni stainless steels of the series 200. The steel is intended to be produced by a conventional industrial route as cold-rolled sheets. Its chemical composition has been designed by considering all the relevant issues for industrial manufacturing (i.e., residual delta ferrite content, typical amount of tramp elements), while keeping the stacking fault energy within the range for achieving the TWIP effect. Tensile tests have shown R p02 > 300 MPa, R m > 1000 MPa, and El > 80% in annealed conditions. Its good resistance to delayed cracking makes it suitable for deep drawing applications as an alternative to AISI 304 in mild environment and high-Mn TWIP steels in the automotive industry.


Stacking fault energy TWIP Austenitic stainless steel Mechanical twin Annealing twin 


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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.RINA Consulting - Centro Sviluppo MaterialiRomeItaly
  2. 2.RINA Consulting - Centro Sviluppo Materiali S.p.A.TerniItaly

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