1. Annotation

Designing group of mining engineering department of the NTU Dnipro University of Technology, which specializes at development and implementation of high-energy metal processing has developed the innovative technique of structural steel hardening. Usage of given technology allows to rise the productivity of hardening technology at 2 – 2,5 times, to rise the detail resource at 1,5 – 2 times and to reduce power inputs at 2 times.

Composite author looks for partners to implement given technique in production.


2. Description of proposition

Innovation technique of structural steel hardening using high-density energy consists in application of preliminary shock-wave load for the first time for power inputs reduce and rise of chemico-thermal processing productivity.

Research results showed the effectiveness of previous shock wave processing for formation of doped layers in structural steels, which exceed traditional strengthening technology derived layers by number of parameters.

Given technology allows to get:

  • diffusion layer thickness - 0,85 мм.
  • homogeneous doped layer
  • existence of solid phase FeBwhich influences at rise of face coat’s wear-resistance


3. Innovative aspect and technological suggestions

While development of innovative hardening technology of structural steels for the first time ever shock wave load as stimulant of diffusion processes while chemico-thermal processing was used to upgrade the productivity of saturation process.


  • Rise of chemico-thermal processing productivity at 2 – 2,5 times;
  • Working resource increase at 2 – 2,5 times;
  • Power inputs reduce for 30 – 35%;
  • Doped layer growth at 2 – 2,5 times;
  • Process time reduce at 2 – 2,5 times.


4. Technological keywords

High-energy processing, Structural steel, Hardening, Innovation technique, Wear resistance,Chemico-thermal processing


5. Developmental stage

Current developmental stage:

Research development, laboratory examinations

Incorporeal rights:

Protected with the patents of Ukraine №№ 7803, 27961, 83769. Declarant and patentee – the NTU Dnipro University of Technology.


6. Field of application

The given technology can be used:

Atmachine-building enterprises while production different machine elements

At agriculture for hardening of working elements of cultivation equipment

At mining-metallurgical complex


7. Cooperation

Technical cooperation

  • Further codesign
  • Testing of new ways of application

Production agreement

Technology adaptation for new materials

Change of existing technology of potential partner

Financial resources


8. Contact information

Organization: NTU Dnipro University of Technology”

Address: Ukraine, 49600, Dnipro, D. Yavornytskyi av., 19

Department: mining engineering

Phone: (0562)47-14-43

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.