Wear of ZhS6U Nickel Superalloy Tool in Friction Stir Processing on Commercially Pure Titanium

Amirov, Alihan; Елисеев, А. А.; Колубаев, Е. А.; Filippov, Andrey; Рубцов, В. Е.

doi:10.3390/met10060799

Cited by 15 publications

(23 citation statements)

References 44 publications

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“…Все это требует поиска новых инструментальных материалов для сварки титановых сплавов. В этом качестве перспективным представляется жаропрочный сплав на основе никеля ЖС6У, который зарекомендовал себя при сварке высокопластичных (ВТ1-0, ОТ4-1) и среднепрочных (ВТ6) титановых сплавов [22,23].…”

Section: обработка металловunclassified

Formation features of a welding joint of alloy Ti-5Al-3Mo-1V by the friction stir welding using heat-resistant tool from ZhS6 alloy

Amirov¹,

Moskvichev²,

Иванов³

et al. 2022

Metal Working and Material Science

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Introduction. The technological process of fabrication products from titanium alloys is often complicated by low quality of welded joints during electric arc or gas-flame welding operations due to high residual stresses and deformations. An example of a successful solution to this problem is the development and implementation of such high-tech processes of metal joining as friction stir welding, which does not refer to the methods of fusion joining. Friction stir welding as an advanced technology is used to obtain joints of “soft” metallic materials, such as aluminum. For “hard” metallic materials, friction stir welding has been limited due to the high demands on welding tools. The aim of this work is investigation of the possibility of using a tool made of the nickel-based heat-resistant alloy ZhS6U in friction stir welding of the titanium alloy Ti-5Al-3Mo-1V. Results and discussion. Optical and scanning electron microscopy results revealed that the structure of the weld is typical of this type of welding, gradient, consisting of a heat-affected zone, thermo-mechanical affected zone and a stir zone with a fragmented structure. When varying welding parameters, it is shown that the defectiveness of the weld is affected to a greater extent by the axial load on the tool, which is caused by a significant difference in the thermal effect on the material. Metallographic analysis methods revealed dissolution of welding tool material fragments in the stir zone of the non-detachable joint. Fractographic analysis of the fracture surface shows that the fracture in the weld zone is ductile, although in this case there are brittle bridges. Varying the parameters of friction stir welding made it possible to obtain an indissoluble joint with at least 90 % of the strength of the base metal.

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Section: обработка металловunclassified

Formation features of a welding joint of alloy Ti-5Al-3Mo-1V by the friction stir welding using heat-resistant tool from ZhS6 alloy

Amirov¹,

Moskvichev²,

Иванов³

et al. 2022

Metal Working and Material Science

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“…The first type is a product of mutual diffusion of the tool with the workpiece material, as evidenced by the nickel distribution map over the image area (Figure 7c). This type of inclusion is formed because, during the welding process, the tool quickly wears out and mixes into the stir zone [32]. The second type of inclusion is shown in Figure 8.…”

Section: Microstructure and Chemical Analysismentioning

confidence: 99%

Friction Stir Processing of Additively Manufactured Ti-6Al-4V Alloy: Structure Modification and Mechanical Properties

Калашников

Чумаевский

Калашникова

et al. 2021

Metals

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This work explores the possibility of using friction stir processing to harden the Ti-6Al-4V titanium alloy material produced by wire-feed electron beam additive manufacturing. For this purpose, thin-walled workpieces of titanium alloy with a height of 30 cm were printed and, after preparation, processed with an FSW-tool made of heat-resistant nickel-based superalloy ZhS6U according to four modes. Studies have shown that the material structure and properties are sensitive to changes in the tool loading force. In contrast, the additive material’s processing direction, relative to the columnar grain growth direction, has no effect. It is shown that increasing the axial load leads to forming a 𝛽-transformed structure and deteriorates the material strength. At the same time, compared to the additive material, the ultimate tensile strength increase during friction stir processing can achieve 34–69%.

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“…A study of the process of treating commercially pure titanium by friction with stirring using a tool made of a nickel-based superalloy ZhS6U was presented in [9]. It was found that the transfer layer in titanium contained chemical elements of the ZhS6U alloy.…”

Section: Contributionsmentioning

confidence: 99%

Casting and Solidification of Light Alloys

Vorozhtsov

2020

Metals

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Wear of ZhS6U Nickel Superalloy Tool in Friction Stir Processing on Commercially Pure Titanium

Cited by 15 publications

References 44 publications

Formation features of a welding joint of alloy Ti-5Al-3Mo-1V by the friction stir welding using heat-resistant tool from ZhS6 alloy

Formation features of a welding joint of alloy Ti-5Al-3Mo-1V by the friction stir welding using heat-resistant tool from ZhS6 alloy

Friction Stir Processing of Additively Manufactured Ti-6Al-4V Alloy: Structure Modification and Mechanical Properties

Casting and Solidification of Light Alloys

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