A combined method for increasing wear resistance of Ti-6Al-4V parts fabricated by additive manufacturing

E. A. Sinyakova, S. A. Martynov, S. V. Panin, D. G. Buslovich

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The effect of a complex hardening treatment consisting of a preliminary electron-beam irradiation and subsequent thermal oxidation on the microstructure, hardness, and wear resistance of Ti-6Al-4V titanium alloy parts fabricated by additive manufacturing has been studied. It was shown that the electron beam treatment of the Ti-6Al- 4V samples gave rise to significant increase of surface roughness. The electron-beam treatment ensured decreasing both the size of primary beta grains and α' martensitic lamellae. This structure was characterized by the presence of extended grain boundaries and high density of dislocations. The observed microstructure modification that took place at the electron beam irradiation resulted in increasing the surface layer hardness up to 8 GPa. Thermal air oxidation of the as-built SLM Ti-6Al-4V samples gave rise to the formation of a thin, high-strength oxide surface layer 3 μm thick. The latter ensured the significant increase of their wear resistance. A more pronounced increase in the surface layer hardness as well as the depth of the oxidized layer, and as a result, the wear resistance of the SLM Ti-6Al-4V samples occurred at employing the combined treatment by the proposed regime.

Язык оригиналаАнглийский
Название основной публикацииOil and Gas Engineering, OGE 2020
РедакторыAlexander V. Myshlyavtsev, Vladimir A. Likholobov, Vladimir L. Yusha
ИздательAmerican Institute of Physics Inc.
ISBN (электронное издание)9780735440159
DOI
СостояниеОпубликовано - 16 ноя 2020
Событие2020 Oil and Gas Engineering Conference, OGE 2020 - Omsk, Российская Федерация
Продолжительность: 26 фев 202029 фев 2020

Серия публикаций

НазваниеAIP Conference Proceedings
Том2285
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

Конференция

Конференция2020 Oil and Gas Engineering Conference, OGE 2020
СтранаРоссийская Федерация
ГородOmsk
Период26.2.2029.2.20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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