The Stability of Laser Hardening Structures to Softening During Heating

Structural and phase changes occurring in laser-hardened steels after tempering at different temperatures are considered. It is shown that the optimization of laser processing and subsequent tempering allows to increase the heat resistance of steels 50-120°C by maintaining a high density of defects...

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Autores principales:	Brover Andrey, Brover Galina, Moysova Olga, Yankovskaya Valeriya
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/78aaaf8a570840ddbe718a4c85a7ff85
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id	oai:doaj.org-article:78aaaf8a570840ddbe718a4c85a7ff85
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spelling	oai:doaj.org-article:78aaaf8a570840ddbe718a4c85a7ff852021-11-08T15:20:43ZThe Stability of Laser Hardening Structures to Softening During Heating2261-236X10.1051/matecconf/202134602002https://doaj.org/article/78aaaf8a570840ddbe718a4c85a7ff852021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/15/matecconf_icmtmte2021_02002.pdfhttps://doaj.org/toc/2261-236XStructural and phase changes occurring in laser-hardened steels after tempering at different temperatures are considered. It is shown that the optimization of laser processing and subsequent tempering allows to increase the heat resistance of steels 50-120°C by maintaining a high density of defects in the crystal structure and appearance of the uniform allocation of dispersed carbide particles. It is established that for the laser-irradiated metal, from the energy point of view, it is not the formation of ε-carbide during tempering, but the deposition of carbon atoms and alloying elements on structural imperfections with further formation of carbides according to the scheme: carbon in solid solution → carbon associated with defects → carbide on defects of the crystal structure.Brover AndreyBrover GalinaMoysova OlgaYankovskaya ValeriyaEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 346, p 02002 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Brover Andrey Brover Galina Moysova Olga Yankovskaya Valeriya The Stability of Laser Hardening Structures to Softening During Heating
description	Structural and phase changes occurring in laser-hardened steels after tempering at different temperatures are considered. It is shown that the optimization of laser processing and subsequent tempering allows to increase the heat resistance of steels 50-120°C by maintaining a high density of defects in the crystal structure and appearance of the uniform allocation of dispersed carbide particles. It is established that for the laser-irradiated metal, from the energy point of view, it is not the formation of ε-carbide during tempering, but the deposition of carbon atoms and alloying elements on structural imperfections with further formation of carbides according to the scheme: carbon in solid solution → carbon associated with defects → carbide on defects of the crystal structure.
format	article
author	Brover Andrey Brover Galina Moysova Olga Yankovskaya Valeriya
author_facet	Brover Andrey Brover Galina Moysova Olga Yankovskaya Valeriya
author_sort	Brover Andrey
title	The Stability of Laser Hardening Structures to Softening During Heating
title_short	The Stability of Laser Hardening Structures to Softening During Heating
title_full	The Stability of Laser Hardening Structures to Softening During Heating
title_fullStr	The Stability of Laser Hardening Structures to Softening During Heating
title_full_unstemmed	The Stability of Laser Hardening Structures to Softening During Heating
title_sort	stability of laser hardening structures to softening during heating
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/78aaaf8a570840ddbe718a4c85a7ff85
work_keys_str_mv	AT broverandrey thestabilityoflaserhardeningstructurestosofteningduringheating AT brovergalina thestabilityoflaserhardeningstructurestosofteningduringheating AT moysovaolga thestabilityoflaserhardeningstructurestosofteningduringheating AT yankovskayavaleriya thestabilityoflaserhardeningstructurestosofteningduringheating AT broverandrey stabilityoflaserhardeningstructurestosofteningduringheating AT brovergalina stabilityoflaserhardeningstructurestosofteningduringheating AT moysovaolga stabilityoflaserhardeningstructurestosofteningduringheating AT yankovskayavaleriya stabilityoflaserhardeningstructurestosofteningduringheating
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The Stability of Laser Hardening Structures to Softening During Heating

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