4.7 Article

Transmission X ray diffraction characterization of deformation induced martensite in 301 and 304 stainless steels rolled at 77K: Role of grain size

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2020.139984

Keywords

Iron alloys; Phase transformation; Transmission X-ray diffraction; Processing and interfaces; Steels; Ultrafine grains

Funding

  1. Council for Science, Technology and Innovation (CSTI)
  2. Cross-ministerial Strategic Innovation Promotion Program (SIP)
  3. 'Materials Integration for Revolutionary Design System of Structural Materials' (Funding agency: JST)

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In the present study, transmission X ray diffraction characterization of volume fraction of deformation induced martensite in metastable austenitic stainless steels viz. 301 and 304 SS, as a function of rolling reductions at 77 K has been reported. Coarser grained microstructures are found to promote deformation-induced martensitic transformations as compared to fine and ultra-fine grained microstructures.

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