Publication: Surface texturing of steel by femtosecond laser and accompanying structure/phase transformations
Дата
2020
Авторы
Zhidkov, M. V.
Vershinina, T. N.
Golosova, O. A.
Ionin, A. A.
Kudryashov, S. I.
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Аннотация
© 2020 Elsevier LtdTopography, structure, and phase composition of surface layers of AISI 321 stainless steel textured by 1030-nm 320-fs-laser pulses were studied by scanning electron microscopy and X-ray diffraction analysis. Variation in single-pulse fluence and the number of pulses was found to change the laser-produced surface texture from one-dimensional quasi-periodic nanograting to microrelief of various roughness. It was shown that the nanograting formed in the spallation regime contained austenite, just as a non-irradiated steel surface, and ferrite. The redeposited oxide layers on the grating surface produced in the phase explosion regime with a thickness increasing versus single-pulse fluence were found to consist of austenite, ferrite, and Fe3O4. In case of high-fluence mode, the two-layer microporous oxide coating, consisting of Fe3O4 and Fe2O3 in addition to conventional phases, was detected. SEM studies showed that the submicrocrystalline structure of nano- and microsized ridges was preserved, except for the high-fluence mode.
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Surface texturing of steel by femtosecond laser and accompanying structure/phase transformations / Zhidkov, M.V. [et al.] // Optics and Laser Technology. - 2020. - 131. - 10.1016/j.optlastec.2020.106370
URI
https://www.doi.org/10.1016/j.optlastec.2020.106370
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85085986088&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000564301000003
https://openrepository.mephi.ru/handle/123456789/21872