Features of Titanium Structure Formation During Thermal Diffusion Saturation with Hydrogen

The article reveals some aspects of structure formation between cuprum fibers and Zn in fluidized powder mixture. It was established that diffusion saturation of cuprum fibers with Zn leads to formation of diffusion layer with decreased melting temperature. The presence of high concentrated Zn zones on the top of the each separate fiber results in improved compactability and sintering temperature in that of high importance in production of porous filter materials.

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Mechanism of carbooxidation of titanium by thermal diffusion saturation

Metal Science and Heat Treatment ◽

10.1007/s11041-006-0067-1 ◽

2006 ◽

Vol 48 (3-4) ◽

pp. 181-184

Author(s):

S. V. Guryn ◽

I. N. Pogrelyuk ◽

V. N. Fedirko

Keyword(s):

Thermal Diffusion ◽

Diffusion Saturation

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Investigation of the variation in the size of samples made of 5СNM steel under thermal diffusion saturation with powder mixtures containing boron and copper

10.36652/1813-1336-2021-17-11-498-502 ◽

2021 ◽

pp. 498-502

Author(s):

S.A. Lysykh ◽

V.N. Kornopol’tsev ◽

U.L. Mishigdorzhiyn ◽

Yu.P. Kharaev ◽

D.E. Dasheev

Keyword(s):

Thermal Diffusion ◽

Powder Mixture ◽

Chemical Elements ◽

Alloyed Steel ◽

Diffusion Saturation ◽

Powder Mixtures ◽

Copper Diffusion ◽

Diffusion Layers ◽

Acicular Structure ◽

Steel 5Khnm

The change in the dimensions of parts after diffusion saturation of alloyed steel 5KhNM with boron and copper is investigated. Diffusion layers obtained on samples with different compositions of the saturating mixture are described. It is shown that when carrying out experiments on saturation of samples in a medium of powders with boron and copper, diffusion layers with an acicular structure with a thickness of 220...330 μm are obtained, and the increase in the observed size was from 44 to 135 μm, depending on the composition of the powder mixture. The properties of diffusion layers have been studied, including the distribution of microhardness and chemical elements at different distances from the surface.

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Analysis of methods for obtaining zinc-containing coatings using hot-dip galvanizing production waste

Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY) ◽

10.21122/1683-6065-2021-2-87-93 ◽

2021 ◽

pp. 87-93

Author(s):

N. I. Urbanovich ◽

K. E. Baranovsky ◽

E. V. Rozenberg ◽

V. A. Ashuiko ◽

V. G. Matys ◽

...

Keyword(s):

Thermal Diffusion ◽

Superheated Steam ◽

Fractional Composition ◽

Zinc Powder ◽

Diffusion Saturation ◽

Production Waste ◽

High Quality ◽

Zinc Coatings ◽

Range Of Values

The article presents the waste generated during the production of hot-dip galvanizing. The analysis of the proposed methods of using these wastes in the production of zinc-containing coatings is carried out. It is shown that hard zinc can be successfully used in the compositions of saturating mixtures during thermal diffusion galvanizing of steel products and obtain high-quality coatings. The disadvantages include the need for grinding hard zinc.The dispersed waste of hot-dip galvanizing production, which is formed as a result of blowing pipes with superheated steam, can be used as a cheap substitute for expensive zinc powder in the compositions of zinc-filled paints. For paints, a fraction of 2–15 microns is used, which is 27 % of the total fractional composition. Therefore, in order to use a wider range of values of the fractional composition of dispersed waste to obtain zinc coatings and thus ensure the recycling of zinc into industrial circulation, the authors of this article plan to optimize and develop the compositions of powder compositions and the technology of thermal diffusion saturation of steel products based on zinc-containing waste.

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