The influence of the structure and phase condition on the mechanical properties of weld joints of pseudo-?-titanium alloys

Khorev, M. A.

doi:10.1007/bf00732711

Cited by 1 publication

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“…Currently, titanium alloys are widely used for such systems [1,2]; they are used in high-pressure pipelines, where aluminum alloys become inoperable, and steels cannot compete due to the lower specific strength characteristics, or pipelines operating with corrosive media [3]. Titanium alloys have better specific strength characteristics in comparison with aluminum alloys and steels, high corrosion resistance and fatigue resistance, and can be used at elevated temperatures, at which the use of aluminum alloys is impossible or impractical [4,5].…”

Section: Introductionmentioning

confidence: 99%

A Study of the Influence of Local Heat Treatment on the Structure of Welded Titanium Pipelines

Astafeva

Balanovskiy

Pershina

2021

DDF

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The article analyzes the results of a study of the influence of zonal heat treatment on the structure of welded joints of pipeline elements made of titanium alloys Ti-3.5Al-1.5Mn. In the manufacture of such structures, the TIG welding method is used to join pipe elements, after which the heat treatment method can be used to relieve residual stresses. The experiments have confirmed the effectiveness of zonal heat treatment preceded by welding. It was revealed that for welded joints made of titanium alloys, heat treatment can stabilize the structure. In experiments conducted by the method of optical metallography, the structure of heat treated and untreated welded joints was investigated. The influence of heat treatment on the weld structure and heat-affected zone was identified.

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