Bimetallic junctions of orthorhombic titanium aluminide with a titanium alloy / Rybin VV,Semenov VA,Semenov AN,Sidorov II,Greenberg BA,Antonova OV,Elkina OA,Kar'kina LE,Patselov AM,Volkov AY,Inozemtsev AV,Salishchev GA,Popov AA,Illarionov AG // PHYSICS OF METALS AND METALLOGRAPHY. - 2005. - V. 99, l. 2. - P. 194-203.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Bimetallic junctions composed of orthorhombic titanium aluminide and a titanium alloy have been obtained by diffusive and implosive welding. Their phase composition and microstructure have been studied using X-ray diffraction, metallography, electron microprobe, and scanning and transmission electron microscopy. After diffusion welding, the titanium alloy was found to return into the initial state, whereas the aluminide was found to transform into a disordered bcc phase. A multilayer character of the diffusion zone has been revealed, and the phases that form the layers have been identified. With approaching the contact surface from both sides, corresponding bcc phases are found to arise. The mutual adjustment of their bcc lattices occurring in the course of diffusion welding is a factor that favors good quality of the bimetallic junctions to be formed. Another important factor is the absence of a continuous intermetallic layer (its presence could lead to embrittlement of the structure) near the contact surface. It is shown that after implosive welding the phase composition of the materials studied mainly remains unaltered. However, their structure changes dramatically. On both sides of the contact surface, structure elements typical of heavily deformed materials are observed. The simultaneous observation of a cellular structure, banded structure, and new grains indicates the occurrence of various stages of fragmentation caused by the nonuniformity of plastic deformation over the bulk of the plates.

Author keywords:

TRANSFORMATIONS; MICROSTRUCTURE

DOI:

нет данных

Web of Science ID:

ISI:000227815200012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Keywords-Plus	TRANSFORMATIONS; MICROSTRUCTURE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Popov, Artemiy/G-3947-2016 Inozemtsev, Alexey/K-7108-2013 Antonova, Olga/K-4548-2013 Greenberg, Bella/K-6538-2013 Elkina, Olga/J-5157-2013 Salishchev, Gennady/G-4767-2016 Patselov, Alexander/K-2945-2013 Karkina, Lidia/J-5994-2013 Volkov, Alexey/K-2865-2013
ORCID-Numbers	Popov, Artemiy/0000-0001-6171-1701 Inozemtsev, Alexey/0000-0002-1737-6050 Antonova, Olga/0000-0002-0908-0575 Greenberg, Bella/0000-0002-4803-5750 Elkina, Olga/0000-0001-9222-6653 Salishchev, Gennady/0000-0002-0815-3525 Patselov, Alexander/0000-0001-6438-0725 Karkina, Lidia/0000-0002-4083-4048 Volkov, Alexey/0000-0002-0636-6623
Number-of-Cited-References	16
Usage-Count-Since-2013	3
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	908UH