Microstructure and mechanical properties of ODS Fe14Cr model alloy processed by equal channel angular pressing Articles uri icon

publication date

  • November 2014

start page

  • 1704

end page

  • 1708

issue

  • 13b

volume

  • 30

international standard serial number (ISSN)

  • 0267-0836

electronic international standard serial number (EISSN)

  • 1743-2847

abstract

  • A nanograin sized model oxide dispersion strengthened (ODS) ferritic steel with nominal composition Fe-14Cr-0.3Y2O3 (wt-%) was produced by mechanical alloying and consolidated by hot isostatic pressing. The alloy was submitted to severe plastic deformation by equal channel angular pressing (ECAP). Microstructural and mechanical characterisation was performed before and after ECAP. It was found that ECAP decreases and homogenises grain size without altering the nanoparticle dispersion, in addition to enhancing ductility and shifting the strength drop at high temperatures.

keywords

  • ecap; hot isostatic pressing; mechanical properties; nanoparticles; ods steels; reduced activation ferritic steels; mechanical properties; nanoparticles; ecap; microstructure and mechanical properties; model alloys; ods steels; reduced activation ferritic steels; hot isostatic pressing