Synchrotron X-ray diffraction analysis of the microstructure of the Ti-6Al-V-Mo-Zr/Al-Cu-Li dissimilar joints produced by CO2 laser welding

Synchrotron X-ray diffraction analysis of the microstructure of the Ti-6Al-V-Mo-Zr/Al-Cu-Li dissimilar joints produced by CO2 laser welding Full article

Journal

Materials Characterization
ISSN: 1044-5803

Output data

Year: 2023, Volume: 198, Article number : 112750, Pages count : 1 DOI: 10.1016/j.matchar.2023.112750

Authors

I. E. Vitoshkin ¹ , А. Г. Маликов ¹ , А. И. Анчаров ^2,3 , Artyom Filippov ¹ , Е. В. Карпов ⁴

Affiliations

1	Khristianovich Institute of Theoretical and Applied Mechanics Siberian Branch Russian Academy of Sciences, Institutskaya Str. 4/1, Novosibirsk 630090, Russia
2	Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences, Acad. Lavrentieva Pr. 11, 630090, Russia
3	Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch Russian Academy of Sciences, Kutateladze Str. 18, Novosibirsk 630128, Russia
4	Lavrentyev Institute of Hydrodynamics Siberian Branch Russian Academy of Sciences, Lavrentyev Ave. 15, Novosibirsk 630090, Russia

Funding (1)

Министерство науки и высшего образования Российской Федерации

FWGG-2022-0001

The paper presents the results of both microscopic and synchrotron X-ray diffraction analysis of the microstructure of the dissimilar Ti-6Al-V-Mo-Zr/Al-Cu-Li butt laser welds, as well as their mechanical properties. While the thickness of the welded plates (2 mm), the power (1.2 kW) and velocity (1 m/min) were constant, the variable parameter has been the laser beam offset towards the titanium alloy plate (from 0 to 1 mm). The offset has replaced a conventional joining process (via mixing both molten base metals) into a welding-brazing. The conventional joints have consisted of a separate aluminium melting zone (Al FZ) and a mixing zone (MZ). The Al FZ has contained typical secondary aluminium alloy phases and the TiAl3 intermetallic particles, while the α2Ti3Al, β2-Ti and γTiAl compounds have been found in the MZs. With rising the beam offset value, mechanical tests have shown an increase in the ultimate tensile strength of the welded joints from 74 up to 168 MPa.

I. E. Vitoshkin , А. Г. Маликов , А. И. Анчаров , Artyom Filippov , Е. В. Карпов
Synchrotron X-ray diffraction analysis of the microstructure of the Ti-6Al-V-Mo-Zr/Al-Cu-Li dissimilar joints produced by CO2 laser welding
Materials Characterization. 2023. V.198. 112750 :1-1. DOI: 10.1016/j.matchar.2023.112750 WOS Scopus РИНЦ OpenAlex

Web of science:	WOS:000949051700001
Scopus:	2-s2.0-85148687586
Elibrary:	50498127
OpenAlex:	W4321439219

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