Structure of Ti-6Al-4V nanostructured titanium alloy joint obtained by resistance spot welding

Journal Article · Fri Jan 15 00:00:00 EST 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4937829· OSTI ID:22494431

Klimenov, V. A., E-mail: [e-mail] ^[1]; National Research Tomsk Polytechnic University, 30 Lenin Av., Tomsk, 634050 ^[2]; Kurgan, K. A., E-mail: [e-mail] ^[1]; Chumaevskii, A. V., E-mail: [e-mail] ^[3]; Klopotov, A. A., E-mail: [e-mail] ^[1]; National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050 ^[2]; Gnyusov, S. F., E-mail: [e-mail] ^[4]

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1. Tomsk State University of Architecture and Building, 2 Solyanaya Sq, Tomsk, 634003 (Russian Federation)
2. (Russian Federation)
3. Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii pr., Tomsk, 634021 (Russian Federation)
4. National Research Tomsk Polytechnic University, 30 Lenin Av., Tomsk, 634050 (Russian Federation)

The structure of weld joints of the titanium alloy Ti-6Al-4V in the initial ultrafine-grained state, obtained by resistance spot welding, is studied using the optical and scanning electron microscopy method and the X-ray structure analysis. The carried out studies show the relationship of the metal structure in the weld zone with main joint zones. The structure in the core zone and the heat affected zone is represented by finely dispersed grains of needle-shaped martensite, differently oriented in these zones. The change in the microhardness in the longitudinal section of the weld joint clearly correlates with structural changes during welding.

• OSTI ID: 22494431
• Journal Information: AIP Conference Proceedings, Vol. 1698, Issue 1; Conference: AMTC-2015: 2. all-Russian scientific conference of young scientists on advanced materials in technology and construction, Tomsk (Russian Federation), 6-9 Oct 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
HEAT AFFECTED ZONE
MARTENSITE
MICROHARDNESS
NANOSTRUCTURES
OPTICAL MICROSCOPY
SCANNING ELECTRON MICROSCOPY
TITANIUM BASE ALLOYS
VANADIUM ALLOYS
WELDED JOINTS
WELDING
X RADIATION