The XXI international scientific and practical conference “Metallurgy: technologies, innovations, quality”

Results of the XXI International scientific and practical conference “Metallurgy: technologies, innovations, quality” presented, devoted to the 90-th anniversary of SibGIU, which took place on October 23–24, 2019, at the SibGIU site (Novokuznetsk). The work of the conference was organized in the frame of plenary session and sessions of the following sections: fundamental research; theory, simulation and technology of metallurgical processes; theory and technology of metal materials processing; foundry; metal forming; thermal treatment; theory and technology of welding processes; powder metallurgy and composition materials and coatings; heat- and mass-transfer in metallurgical processes and facilities; resources- and energy saving; ecology and wastes utilization. Scientists-metallurgists and specialists took part in the conference, representing 80 education and research organizations, industrial plants from 40 cities of Russia, China, Japan, Great Britain, Germany, Brazil, Austria, Israel, Poland, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Ukraine, Belarus, Latvia. 160 reports were received by the organization committee of the conference. The review of the reports, devoted to solving of scientific and application tasks in the area of ferrous metallurgy that arose the highest attention of the conference participants.

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Determination of the formability of stainless steel sheets using the technological proofing method

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1243/095440503322420179 ◽

2003 ◽

Vol 217 (9) ◽

pp. 1253-1257

Author(s):

R Hennig ◽

N V Malveira ◽

R S Crivellaro ◽

S E Silveria Netto ◽

C A Borsoi ◽

...

Keyword(s):

Stainless Steel ◽

Industrial Practice ◽

Practice Test ◽

Industrial Plants ◽

Steel Sheets ◽

Drawing Test ◽

Stretch Formability ◽

Metal Materials ◽

Cup Drawing

This paper shows the proofing of the formability of stainless steel materials with a new technological testing method to determine differences in their forming behaviours. The new method uses different round punch forms in the cup-drawing test to cause ruptures and to combine systematic rising stretch-forming division ranges with the deep-drawing process, as described by Hennig. In this way the deep-drawability as well as the stretch-formability of sheet metal materials are tested simultaneously. Through this increase in the proofing conditions, the broad demands in manufacturing complicated panels are greater than had so far been considered in an experiment. In the tests, only small differences could be shown in the forming behaviours of the different stainless steel materials, and they form industrial plants. However, this depends on the change in the load between the industrial practice test and the current experiments. On the other hand, the results could show the improvement in the material from a supplier only by attaining nearly the same or better results with these sheets, which has to be proved once again in practice.

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The Development of Large Pressurized Fluid Bed Steam Dryers from Fundamental Research to Industrial Plants

Drying Technology ◽

10.1080/07373937.2015.1064944 ◽

2015 ◽

Vol 33 (13) ◽

pp. 1631-1643 ◽

Cited By ~ 7

Author(s):

Arne Sloth Jensen ◽

Kasper Larsen

Keyword(s):

Industrial Plants ◽

Fluid Bed ◽

Fundamental Research

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Fundamental Research into Thin Films in a Developing Country

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095753 ◽

1972 ◽

Vol 30 ◽

pp. 500-501

Author(s):

J.A. Eades ◽

E. Grünbaum

Keyword(s):

Thin Films ◽

Growth Process ◽

Empirical Process ◽

Nucleation And Growth ◽

Research Groups ◽

Film Research ◽

Fundamental Research ◽

Controlled Deposition ◽

The One ◽

The University

In the last decade and a half, thin film research, particularly research into problems associated with epitaxy, has developed from a simple empirical process of determining the conditions for epitaxy into a complex analytical and experimental study of the nucleation and growth process on the one hand and a technology of very great importance on the other. During this period the thin films group of the University of Chile has studied the epitaxy of metals on metal and insulating substrates. The development of the group, one of the first research groups in physics to be established in the country, has parallelled the increasing complexity of the field.The elaborate techniques and equipment now needed for research into thin films may be illustrated by considering the plant and facilities of this group as characteristic of a good system for the controlled deposition and study of thin films.

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Microstructure of resistance spot welding of maraging steels

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100177635 ◽

1990 ◽

Vol 48 (4) ◽

pp. 900-901

Author(s):

I. Neuman ◽

S.F. Dirnfeld ◽

I. Minkoff

Keyword(s):

Maraging Steel ◽

Spot Welding ◽

Lath Martensite ◽

Base Material ◽

Aging Treatment ◽

High Strength ◽

Maraging Steels ◽

Heat Treated ◽

Current Cycle ◽

Welding Processes

Experimental work on the spot welding of Maraging Steels revealed a surprisingly low level of strength - both in the as welded and in aged conditions. This appeared unusual since in the welding of these materials by other welding processes (TIG,MIG) the strength level is almost that of the base material. The maraging steel C250 investigated had the composition: 18wt%Ni, 8wt%Co, 5wt%Mo and additions of Al and Ti. It has a nominal tensile strength of 250 KSI. The heat treated structure of maraging steel is lath martensite the final high strength is reached by aging treatment at 485°C for 3-4 hours. During the aging process precipitation takes place of Ni3Mo and Ni3Ti and an ordered solid solution containing Co is formed.Three types of spot welding cycles were investigated: multi-pulse current cycle, bi-pulse cycle and single pulsle cycle. TIG welded samples were also tested for comparison.The microstructure investigations were carried out by SEM and EDS as well as by fractography. For multicycle spot welded maraging C250 (without aging), the dendrites start from the fusion line towards the nugget centre with an epitaxial growth region of various widths, as seen in Figure 1.

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