4.6 Article

Deformation Microstructure and Deformation-Induced Martensite in Austenitic Fe-Cr-Ni Alloys Depending on Stacking Fault Energy

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SPRINGER
DOI: 10.1007/s11661-016-3839-2

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  1. VINNOVA, the Swedish Government Agency of Innovation Systems
  2. Swedish Industry
  3. KTH
  4. CSC (China Scholarship Council)
  5. Jernkontoret (Swedish Steel Producers' association)
  6. Swedish Research Council (VR) [2015-05538]
  7. European Research Council
  8. Austrian Federal Government
  9. Swedish Research Council [2015-05538] Funding Source: Swedish Research Council

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The deformation microstructure of austenitic Fe-18Cr-(10-12)Ni (wt pct) alloys with low stacking fault energies, estimated by first-principles calculations, was investigated after cold rolling. The E >-martensite was found to play a key role in the nucleation of alpha'-martensite, and at low SFE, E > formation is frequent and facilitates nucleation of alpha' at individual shear bands, whereas shear band intersections become the dominant nucleation sites for alpha' when SFE increases and mechanical twinning becomes frequent. (C) The Author(s) 2016. This article is published with open access at Springerlink.com

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