Stability of martensite with pulsed electric current in dual-phase steels

Lu, Wenjun and Qin, Rongshan (2016). Stability of martensite with pulsed electric current in dual-phase steels. Materials Science and Engineering A, 677 pp. 252–258.

DOI: https://doi.org/10.1016/j.msea.2016.08.123

URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Softening frequently occurs in dual-phase steels under isothermal tempering of martensite. Recently, non-isothermal tempering is implemented to decrease the softening process in dual-phase steels. Here, we have discovered using high power electropulsing treatment can significantly enhance the strengthening effects via the formation of ultrafine-grained ferrite with nano-cementite particles in tempered martensitic-ferritic steels. To the best our knowledge, electropulsing treatment is a proper candidate to retard even to recovery the softening problems in the tempering of martensite in comparison with other isothermal and non-isothermal tempering methods.

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