Web2 Mar 2024 · 1. Introduction. Ultrafine-grained (UFG) metals always exhibit very high strength but low tensile ductility at room temperatures (strength-ductility trade-off), which … Web23 May 2008 · Bulk UFG Cu–Al alloys have been fabricated by using equal channel angular pressing technique. Its ductility was improved to exceed the criteria for structural utility …
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WebIn the billets processed by equal-channel angular pressing (ECAP), the presence of anisotropy of ultimate tensile strength (UTS) and ductility was observed, conditioned by the formation of a metallographic and crystallographic texture. At the same time, the ECAP-processed UFG alloy exhibited satisfactory values of impact toughness, ~0.42 MJ/m 2. WebExcellent thermal stability combined with high strength-ductility synergy is observed during isochronous annealing of the UFG material. Accelerated recovery consumes the thermal … qpushbutton python
Ultrafine-grained Al–La–Mg–Mn alloy with superior thermal …
Web8 Apr 2024 · Balanced strength and ductility were achieved in trimodal coarse grain (CG)/ fine grain (FG)/ ultrafine grain (UFG) structure, which exhibited yield strength of 616.7 ± 8.1 MPa, ultimate tensile strength of 714.6 ± 2.1 MPa and fracture elongation of 2.68 ± 0.12% with a comparable strength but doubled ductility as that in unimodal UFG structure. WebPurpose: The aim of the paper is to describe crystallographic and morphological features of retained austenite in thermomechanically processed bainite-martensite multiphase steels … WebMeasures of Ductility for UFG Materials Obtained by SPD Abstract: It is shown that for ultrafine grained materials obtained with severe plastic deformation methods, the value of … qpv forbach