The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing

The paper was investigated the effect of preliminary multiple martensitic transformations on the microstructure and mechanical and functional stability during subsequent annealing in the range of aging temperatures of the Ti49.051.0 alloy in the coarse-grained state. The structure in the initial sta...

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Autores principales:	Churakova Anna, Kayumova Elina, Gunderov Dmitry
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/0c3d40289c6f40a0adeb0c5ef9f9d2aa
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spelling	oai:doaj.org-article:0c3d40289c6f40a0adeb0c5ef9f9d2aa2021-11-08T15:20:32ZThe Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing2261-236X10.1051/matecconf/202134602011https://doaj.org/article/0c3d40289c6f40a0adeb0c5ef9f9d2aa2021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/15/matecconf_icmtmte2021_02011.pdfhttps://doaj.org/toc/2261-236XThe paper was investigated the effect of preliminary multiple martensitic transformations on the microstructure and mechanical and functional stability during subsequent annealing in the range of aging temperatures of the Ti49.051.0 alloy in the coarse-grained state. The structure in the initial state has an austenitic structure with a grain size of 30 ± 5 μm; after TC, the structure is martensite with a grain size of 30 ± 5 μm. According to the results of mechanical tensile tests, thermal cycling leads to an increase in the yield stress, which is associated with the generation and accumulation of dislocations. An increase in the number of cycles to n = 100 led to a slight decrease in the yield stress, which may be due to the saturation effect during thermal cycling. Subsequent aging at T=400 °C after thermal cycling showed that the yield stress increases. At the same time, the results of mechanical tests showed that, in general, the preliminary TC (n = 100) with subsequent aging contributes to an increase in the yield strength and strength. The structure revealed after thermal cycling and subsequent low-temperature annealing confirms the precipitation of aging strengthening particles Ti3Ni4.Churakova AnnaKayumova ElinaGunderov DmitryEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 346, p 02011 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Churakova Anna Kayumova Elina Gunderov Dmitry The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
description	The paper was investigated the effect of preliminary multiple martensitic transformations on the microstructure and mechanical and functional stability during subsequent annealing in the range of aging temperatures of the Ti49.051.0 alloy in the coarse-grained state. The structure in the initial state has an austenitic structure with a grain size of 30 ± 5 μm; after TC, the structure is martensite with a grain size of 30 ± 5 μm. According to the results of mechanical tensile tests, thermal cycling leads to an increase in the yield stress, which is associated with the generation and accumulation of dislocations. An increase in the number of cycles to n = 100 led to a slight decrease in the yield stress, which may be due to the saturation effect during thermal cycling. Subsequent aging at T=400 °C after thermal cycling showed that the yield stress increases. At the same time, the results of mechanical tests showed that, in general, the preliminary TC (n = 100) with subsequent aging contributes to an increase in the yield strength and strength. The structure revealed after thermal cycling and subsequent low-temperature annealing confirms the precipitation of aging strengthening particles Ti3Ni4.
format	article
author	Churakova Anna Kayumova Elina Gunderov Dmitry
author_facet	Churakova Anna Kayumova Elina Gunderov Dmitry
author_sort	Churakova Anna
title	The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
title_short	The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
title_full	The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
title_fullStr	The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
title_full_unstemmed	The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing
title_sort	investigation of mechanical and functional properties and microstructural features of coarse-grained sme ti49.0ni51.0 alloy during multiple martensitic transformations and annealing
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/0c3d40289c6f40a0adeb0c5ef9f9d2aa
work_keys_str_mv	AT churakovaanna theinvestigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing AT kayumovaelina theinvestigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing AT gunderovdmitry theinvestigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing AT churakovaanna investigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing AT kayumovaelina investigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing AT gunderovdmitry investigationofmechanicalandfunctionalpropertiesandmicrostructuralfeaturesofcoarsegrainedsmeti490ni510alloyduringmultiplemartensitictransformationsandannealing
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The Investigation of Mechanical and Functional Properties and Microstructural Features of Coarse-Grained SME Ti49.0Ni51.0 Alloy during Multiple Martensitic Transformations and Annealing

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