%0 Journal Article
%A Rabelo Coutinho Saraiva, Breno
%A da Silva, Carlos Samuel Alves
%A Herculano, Luis Flávio Gaspar
%A Sarvezuk, Paulo Willian Carvalho
%A Novotný, Ladislav
%A Silva, Cleiton Carvalho
%A Keller, Thomas F.
%A Masoumi, Mohammad
%A de Abreu, Hamilton Ferreira Gomes
%A Beres, Miloslav
%T Effect of cyclic loading on microstructure and plastic deformation in heat-treated Co–28Cr–6Mo alloy fabricated via laser powder bed fusion: An in situ synchrotron X-ray diffraction study
%J Materials science & engineering / A
%V 920
%@ 0921-5093
%C Amsterdam
%I Elsevier
%M PUBDB-2024-07893
%P 147493
%D 2025
%X We present a systematic microstructure-oriented plasticity investigation of an additively manufactured cobaltbasedalloy aiming to relate microstructural changes to the fatigue resistance. A load-controlled cyclic test inthe low-cycle fatigue regime was utilized to study mechanical response and microstructural changes in the alloyafter reverse phase transformation heat treatment. Deformation-induced FCC → HCP phase transformation wasfollowed using in situ synchrotron X-ray diffraction combined with ex situ electron backscatter diffraction andscanning electron microscopy. Scanning transmission electron microscopy provided experimental evidence of thepresence of precipitates in the solution annealed sample. It was found, that a stepwise increase in plasticdeformation is attributed to nucleation and growth of different martensitic crystallographic variants. These insightsinto plasticity and microstructural changes suggest that the reverse phase transformation heat treatment isan effective approach for improving the fatigue resistance of low stacking fault energy alloys, that are susceptibleto deformation-induced martensitic transformation.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001362355200001
%R 10.1016/j.msea.2024.147493
%U https://bib-pubdb1.desy.de/record/619758