Thermocyclic high frequency treatment of welded joints in VT22 titanium alloy

Lyasotskaya, V. S.; Shakurov, Yu. M.; Kulikov, F R; Knyazeva, S. I.; Zvonova, L. N.

doi:10.1080/09507119109446757

Cited by 6 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2, b). The metastable β phase that is detected during welding, is thermally and mechanically unstable [1].…”

Section: Resultsmentioning

confidence: 99%

“…According to publications [1,12,13,14,15], an attempt was made to use a sufficiently simple technological process of HT of welded joints, welded with filler wire PPT-22 -stepped annealing in different modes (Table 1). Mode #1.…”

Section: Resultsmentioning

confidence: 99%

“…Heat treatment allows to get the best combination of physical and mechanical properties out of titanium alloys [1]. The main purpose of HT is by heating up to certain temperatures and then cooling down to cause some changes in the structure of metal and obtain the desired properties.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Heat Treatment on the Structure and Properties of Titanium Alloy VT22 Welded Joints Produced by TIG-Welding with Flux-Cored Wire

Prilutsky

Akhonin

Schwab

et al. 2018

MSF

View full text Add to dashboard Cite

An important part in affecting the properties of the titanium alloy VT22 is a heat treatment (HT). Annealing of welded joints of the alloy also works as strengthening HT. Depending on the heating temperature, duration of annealing and the cooling rate, different combinations of strength and ductility could be obtained. Annealing is carried out in the VT22 alloy two-phase region (750 - 850 °C) followed by direct or stepwise cooling. This heat treatment results in a maximum heterogeneity of the structure with nearly an equal amount of α and β phases. It also provides a tensile strength of 1100 - 1300 MPa.

show abstract

“…2, b). The metastable β phase that is detected during welding, is thermally and mechanically unstable [1].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Heat Treatment on the Structure and Properties of Titanium Alloy VT22 Welded Joints Produced by TIG-Welding with Flux-Cored Wire

Prilutsky

Akhonin

Schwab

et al. 2018

MSF

View full text Add to dashboard Cite

show abstract

“…The obtained data of X-ray diffraction studies reflect the ability of titanium alloys to form metastable phases as a result of the mechanical and thermal treatment [8]. According to the published data, the weld zone and the heat-affected zone in titanium alloys have a different number of characteristic sections that reflect different limiting heating temperatures and different cooling rates [9]. The presence of a temperature gradient and different cooling rates in different local regions in the weld zone results in a structural-kinetic step-like transformation β→α in titanium alloys.…”

Section: X-ray Diffraction Study Datamentioning

confidence: 93%

Electron-Beam Welding - Structural-Phase State and Microhardnes in the Weld Zone in a Submicrocrystalline Titanium Alloy Grade2

Клименов

Klopotov

Abzaev

et al. 2017

MSF

View full text Add to dashboard Cite

The paper presents the results of the X-ray diffraction analysis of structural-phase states in the weld zone of a titanium alloy Grade2 in micro-and submicrocrystalline states. It is established that the structural-phase state in the weld zone and in the heat-affected zone depends on the state of samples of the alloy Grade2 before welding. It is shown that formation process of metastable phases ω-Ti and α′′-Ti occurs in the submicrocrystalline state in the alloy Grade2 in the weld zone and in the heat-affected zone. Investigations of the features of the microhardness distribution in the weld zone in alloys Grade2 in micro-and submicrocrystalline states are carried out. Different character of microhardness distributions in the weld zone in the samples depending on the structural-phase state of welded plates made of alloy Grade2 is determined.

show abstract

“…1. The nal stage plays a role of post-weld heat treatment (PHWT), minimizing both quenching structures and residual stresses by reducing cooling rates, which is especially important for titanium and its alloys [45]. For SSRSW, it has been recommended to combine all these pulses into single current pro les considering low thermal capacities of the joined parts [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effects of preheating and slow cooling stages in small-scale resistance spot welding of the Ti-2Al-1Mn alloy

Буцыкин

Slobodyan

Strelkova

et al. 2023

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The aim of this study was to improve the controllability of the resistance spot welding process for parts with a thickness of 0.5 mm from the Ti-2%Al-1%Mn alloy. It was found that the weld lobe was within the ranges of current amplitudes from 3.3 up to 4.8 kA and pulse durations from 8 up to 16 ms. After applying such parameters, nuggets were characterized by acceptable diameters without expulsions in most cases. The preheating stage (a preliminary pulse with an amplitude of about 1 kA and a duration of 3-4 ms) had a positive effect on the stability of the mechanical properties of the joints. Upon solidi cation, a decrease in the cooling rate (by a prolonged down slope) also slightly improved them, despite the absence of fundamental variations in the microstructure and phase composition of the nuggets. The supposed reason was a reduction of residual stresses. The reported data can be used as a basis for developing similar welding procedures for various parts of comparable thicknesses from other titanium-based alloys, taking into account the ratio of their physical properties, dimensions and deployed equipment. 57. Kislyuk FI (1950) Electric Contact Welding. Oborongiz, Moscow.

show abstract

Thermocyclic high frequency treatment of welded joints in VT22 titanium alloy

Cited by 6 publications

References 0 publications

Effect of Heat Treatment on the Structure and Properties of Titanium Alloy VT22 Welded Joints Produced by TIG-Welding with Flux-Cored Wire

Effect of Heat Treatment on the Structure and Properties of Titanium Alloy VT22 Welded Joints Produced by TIG-Welding with Flux-Cored Wire

Electron-Beam Welding - Structural-Phase State and Microhardnes in the Weld Zone in a Submicrocrystalline Titanium Alloy Grade2

Effects of preheating and slow cooling stages in small-scale resistance spot welding of the Ti-2Al-1Mn alloy

Contact Info

Product

Resources

About