Are you interested in heat treatment, annealing, and hardening of tantalum? We offer to buy tantalum from the specialized warehouses of the supplier Evek GmbH with delivery to any city. Full compliance with modern quality standards. Supplier Evek GmbH offers to buy rare-earth metals, the price is optimal in this segment of rolled metal products.

Heat treatment features

Tantalum is highly reactive to gases like hydrogen, nitrogen and oxygen. It can also react with hydrocarbons. Its recrystallization temperature ranges from 900° C to 1,450° C. Vacuum and dry inert gases are most suitable as heat treatment atmospheres. The duration of heat treating may depend on the equipment, but the lubricants must be completely removed before heat treating. Otherwise they can react with tantalum and cause embrittlement of the material.

Control

During the thermo-mechanical treatment process, careful control is necessary. In this study, X-ray rocking curves were used to control the microstructure. Plate material derived from alloyed tantalum showed an annealing stage at 300° C higher than that of pure tantalum. The activation energies determined from the rocking curve data ranged from one-half to one-third of the self-diffusion activation energy. Evek GmbH offers to buy any rare-earth metals at manufacturer's price. The supplier guarantees product delivery to any destination.

Structural changes during heat treatment

Sources of heterogeneous structure are impurities in the chemical composition of ingots, ingot grain size and machining. The introduction of high levels of plastic deformation by rolling and forging before annealing only partially homogenizes the grain structure. Heterogeneous grain structures in components give rise to local changes in mechanical properties and are potential sources of unforeseen failures.

Annealing

Annealing of wrought tantalum billets shows that there are significant differences in grain size and morphology of the microstructure obtained after annealing of wrought tantalum. In evaluating the effect of the intermediate annealing cycle (before forging) on the texture and microstructure formation in wrought and annealed tantalum plates, X-ray diffraction analysis methods are used. The influence of annealing modes was carried out on tantalum with an admixture of 2.5% tungsten. The alloy was obtained by vacuum arc remelting of electron beam ingots.

Temperature range.

During the initial annealing of pure tantalum in the temperature range of 750 to 900 °C, the texturing of the structure is reduced. However, at annealing temperatures above 1100° C, there is marked grain growth, which impairs the subsequent machinability of the tantalum workpiece.

Percentage composition of technical tantalum

Cast ingots after heat treatment were subjected to cold rolling on a multi-stand mill with lubricated working rolls.

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Are you interested in heat treatment, annealing, and hardening of tantalum? We offer to buy tantalum, the price - determined by the technological features of production without including additional costs. The website of Evek GmbH displays information on the latest arrivals of products. It is possible to order rolled tantalum of any metal. We invite to partner cooperation.