Positron Annihilation Spectroscopy Study of Metallic Materials after High-Speed Cutting; Materials; Vol. 15, iss. 3

Positron Annihilation Spectroscopy Study of Metallic Materials after High-Speed Cutting; Materials; Vol. 15, iss. 3

Bibliografiska uppgifter
Parent link:	Materials Vol. 15, iss. 3.— 2022.— [1017, 13 p.]
Institutionell upphovsman:	Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
Övriga upphovsmän:	Li Jinquan, Laptev R. S. Roman Sergeevich, Bordulev Yu. S. Yuri Sergeevich, Semek K. Kshishtof, Horodek P. Pawel, Shen H. Haolun, Lomygin A. D. Anton Dmitrievich, Cui Jian
Sammanfattning:	Title screen During high-speed cutting, a white layer is often produced on the machined surfaces after mechanical machining, seriously affecting the mechanical properties. These properties are related to the material structure and the defects induced by cutting. However, there is a lack of research on the atomic-scale defects of the white layer. This paper studied the influence of cutting parameters, namely the feed rate, cutting speed and cutting depth, on atomic-scale defects induced by high-speed cutting in GCr15 steel. Positron annihilation studies showed typical plastically deformed or tempered carbon steel defects with additional vacancy cluster components. The quantity of these clusters changed with cutting parameters. Furthermore, significant changes were observed in the subsurface region up to 1 µm, occurring as a result of simultaneous phase transformations, deformation and thermal impacts. The predominant accumulation of only one type of atomic-scale defect was not observed.
Språk:	engelska
Publicerad:	2022
Ämnen:	электронный ресурс труды учёных ТПУ positron annihilation metals high-speed cutting white layer microstructure defects аннигиляция позитроны металлы высокоскоростная резка слои микроструктуры дефекты
Länkar:	http://earchive.tpu.ru/handle/11683/70716 https://doi.org/10.3390/ma15031017
Materialtyp:	Elektronisk Bokavsnitt
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667428

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