Formation of vortices during explosion welding (titanium-orthorhombic titanium aluminide)

Рыбин, В. В.; Greenberg, B. A.; Antonova, O. V.; Elkina, O. A.; Иванов, М. А.; Inozemtsev, A. V.; Пацелов, А. М.; Sidorov, I. I.

doi:10.1134/s0031918x09100056

Cited by 15 publications

(14 citation statements)

References 3 publications

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“…8c repre sents an image of a rotational mode of plastic defor mation. Earlier [10], macrorotations were found in the aluminide zone in the titanium-titanium aluminide joint. Figure 9 displays a longitudinal section of the inter face (OM) (panorama).…”

Section: Copper-tantalum (Wavy Interface)mentioning

confidence: 97%

“…Titanium-Orthorhombic Titanium Aluminide [5][6][7][8][9][10][11][12][13][14] In both orthorhombic alloys under different regimes of explosive welding there were observed interfaces of different types: almost flat boundaries, along which melting occurred [12]; and wavy bound aries, which will be considered further (A, B). Figure 1 shows the optical images (OM) of the investigated interfaces (transverse sections) in the VTI 1-titanium joint (Figs.…”

Section: Transition Zone Of Welded Jointsmentioning

confidence: 99%

“…The internal structure of the zones of local melting was discussed in detail in [8][9][10][11][12][13][14]. The electron probe analysis (EMA) of the chemical composition showed that these regions represent a Ti based solid solution.…”

Section: Transition Zone Of Welded Jointsmentioning

confidence: 99%

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Inhomogeneities of the interface produced by explosive welding

Greenberg

Ivanov

Рыбин

et al. 2012

Phys. Metals Metallogr.

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Results of studying structure of the transition zone for a number of joints produced by explosive welding are presented. The joints of dissimilar metals (titanium-orthorhombic titanium aluminide, coppertantalum, and others) have been investigated. The welded pairs of metals differ from each other in mutual sol ubility; moreover, some pairs (copper-tantalum) virtually lack it. The interface was found to be uneven; it contains inhomogeneities, irrespective of whether it is flat or wavy. It is shown that the formation of interfacial protrusions determines the adhesion of materials. A granulating fragmentation has been found near the pro trusions. The role of various processes in explosive welding has been discussed. The formation of protrusions does not depend on whether the metals of a pair have mutual solubility or not. However, this factor affects the structure of zones of local melting. The metals that have mutual solubility form true solutions; in the absence of solubility, these zones represent colloidal solutions. It is shown that sometimes the local melting zones do not present a real danger for the strength of the joint. A hypothesis is proposed that the formation of a wavy surface is possible through the self organization of the previously formed protrusions.

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Section: Copper-tantalum (Wavy Interface)mentioning

confidence: 97%

Section: Transition Zone Of Welded Jointsmentioning

confidence: 99%

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Inhomogeneities of the interface produced by explosive welding

Greenberg

Ivanov

Рыбин

et al. 2012

Phys. Metals Metallogr.

Self Cite

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“…Исследо-вание поперечного сечения сварного шва методом оп-тической микроскопии показало, что в результате ЛСТ произошло формирование зоны сплошного прилегания материала без несплошностей и трещин как в централь-ной (рис.1b), так и в периферийной области (рис.1c). Развитая волнообразная контактная поверхность явля-ется критерием качественной сварки поверхности [16]. На рис.1b овалом показан участок пластического дефор-мирования магнита.…”

Section: экспериментальные результаты и их обсуждениеunclassified

The microstructure and mechanical properties of the welded joint of 25Х15К magnetic alloy and 10880 steel obtained by means of linear friction welding

Абрамова¹,

Korznikova²,

Корзников³

et al. 2015

LoM

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The paper reports a promising process of jointing magnetic alloy and electrical steel by means of linear friction welding. Linear friction welding method allows to create a precise connection of magnetic 25Х15К alloy and 10880 steel specimens providing vales of strength σ 0,2 =880 MPa and plasticity δ = 3 ± 1 % in the joint zone. Friction welding treatment results in formation of a solid connection without the diffusion zone due to short time of welding process. Mechanical testing at room temperature have shown that the compound demonstrates the values of strength and ductility comparable to ones of bulk 25Х15К alloy.

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“…More urgently the question rises when we are talking about materials that possess no mutual solubility, even in the liquid state. Welded joints of metal-intermetallic possessing a normal mutual solubility in both liquid and solid states had been investigated previously [4][5][6][7]. Commercially pure titanium was chosen as a metal, and orthorhombic titanium aluminide based alloys ("aluminide" for short) were selected as an intermetallic compound.…”

Section: Introductionmentioning

confidence: 99%