An EBSD Study of Orientation Relationships during Phase Transformations in Ultra High Performance Steels

Abstract:

The orientation relationships that apply to phase transformations in high-performance TRIP and TWIP steels were characterised by orientation imaging and EBSD techniques. The results are presented in the fundamental zones of Rodrigues-Frank space that correspond to the specific phase transformation under consideration (cubic to cubic or cubic to hexagonal). The use of Rodrigues-Frank space enables straightforward comparison to be made with orientation relationships proposed in the literature. The observations indicate that the active slip systems in the parent phase play important roles in variant selection.

• Periodical: Materials Science Forum (Volumes 539-543)
• Pages: 4614-4619
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.539-543.4614
• Online since: March 2007
• Authors: Stéphane Godet, You Liang He, John J. Jonas, Pascal J. Jacques
• Keywords: Electron Backscatter Diffraction (EBSD), Orientation Relationship, Rodrigues-Frank Space, TRIP, TWIP

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