The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials

Microstructure characterization and strengthening mechanisms of oxide dispersion strengthened (ODS) Fe-9%Cr and Fe-14%Cr extruded bars

Microstructure characteristic and mechanical property of transformable 9Cr-ODS steel fabricated by spark plasma sintering

Microstructure and property of a selective laser melting process induced oxide dispersion strengthened 17-4 PH stainless steel

The microstructure and tensile property of Al0.2Co1.5CrFeNi1.5Ti0.3 high entropy alloy (HEA) processed by selective laser melting (SLM) have been studied in comparisons to that fabricated by traditional cast & wrought (CW the result was a microstructure with not only L12 particles dispersion, but also L21 phase was formed at subgrain boundaries, nano oxides and dislocations were present in the matrix. The tensile properties of this HEA were significantly enhanced by the SLM and direct ageing process; the room temperature yield strength (1235 MPa) and ultimate tensile strength (1550 MPa) achieved in this work are the highest to-date for HEAs subjected to laser additive manufacturing processes. Comparing to those of CW detailed analysis on microstructure evolution and strengthening factors are presented and discussed in this article.

F. Barcelo

Papers

Influence of microstructural parameters on the mechanical properties of oxide dispersion strengthened Fe-14Cr steels

Influence of temperature and strain rate on the deformation and damage mechanisms of oxide dispersion strengthened ferritic steels