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

Journal Article · Thu Jan 14 23:00:00 EST 2016 · AIP Conference Proceedings

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

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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1698; ISSN APCPCS; 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