The Paton Welding Journal, 2000, №01

2000 №01 (03)

2000 №01 (05)

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The Paton Welding Journal, 2000, #1, 23-26 pages

Adhesion of titanium parts to steel fixture during diffusion bonding

S.N. Fyodorov¹, A.V. Bondar¹, V.V. Peshkov², V.V. Shurupov²

¹Mechanical Engineering Plant, Voronezh, Russia
²State Technical University, Voronezh, Russia

Abstract
The influence of temperature and welding time on the strength of adhesion of steel 20 and 12Kh18N10T to VT6 titanium alloy is considered. Comparison of the results of static rupture tests with the topography of the fracture surface of the adhesion regions and their phase composition allows stating that in contact interaction of VT6 alloy with steel 20 the titanium surface is blocked by carbide-containing films, which prevents development of the adhesion process. Therefore, in diffusion bonding of titanium structures, it is recommended that fixture should be made from low-carbon steels.
Keywords: adhesion, steel fixture, thin-walled titanium structures, diffusion bonding, mechanical tests, fractography, intermetallic phases, carbides

References

1. Bondar, A.V., Peshkov, V.V., Kireev, L.S., Shurupov, V.V. (1998) Diffusion bonding of titanium and its alloys. Voronezh: The Voronezh State University.
2. Peshkov, V.V., Gusev, S.I. (1984) Technological parameters of the process of diffusion bonding of honeycomb structures from titanium alloys. Svarochnoye Proizvodstvo, 10, 12-14.
3. Kolachev, B.A., Malkov, A.V. (1983) Physical principles of fracture of titanium. Moscow: Metallurgiya.
4. Milyutin, V.I., Peshkov, V.V., Kolachev, B.A., Rodionov, V.N. (1988) Detection of oxides on the surface of titanium by scanning electron microscopy. Svarochnoye Proizvodstvo, 11,37-39.

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Suggested Citation

S.N. Fyodorov, A.V. Bondar, V.V. Peshkov, V.V. Shurupov (2000) Adhesion of titanium parts to steel fixture during diffusion bonding. The Paton Welding J., 01, 23-26.

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