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Development and application of new hardfacing composite materials for abrasive and hydro-abrasive conditions

Development of new materials for hardfacing against abrasion
and hydro-abrasion with longer life and better environmental
conditions than those of currently used materials.

Objectives: The development of new technologies and surfacing materials for abrasive, hydro-abrasive wear and corrosive environments. New materials are to have a lower degree of alloying with the same or longer life as currently used materials with a lower ecological loading of the welding and with new technological procedures. The aim of the study: The primary scientific aim of the study is to develop new chemical compositions of the hardfacing layers and understand the behaviour of improved abrasion wear- resistant hardfacing layers under various environmental conditions. The primary technological aim of this project is to apply these materials to industrial situations for various machine parts to achieve improved performance and thus a commercial advantage. The proposed research is devoted to the creation of a new generation of filler materials and technologies for abrasive and hydroabrasive conditions for future industrial applications. The proposed project is devoted to the creation and production of new composite highly wear-resistant deposited materials, increase the level of commercial analogue by 2-4 times, that is determined by the properties of the diborides, matrix quantity and the alloying of their phases. The laboratory wear tests will provide new information on the behaviour of hardfacing layers for this purpose and it will be possible to propose a new design for abrasive and hydroabrasive-resistant materials. New data sheets for industrial applications will help welding technologists to prepare a new design for machine spare parts. The practical value of the project: We have many examples of industrial applications where the results of the project will prolong spare part life. These are: * tools for the mining industry * crusher hammers * exacavator teeth * buckets. There are many applications in metallurgy as well as agricultural and civil engineering. The potential economic benefits for each medium-sized metallurgical plant would be approximately 2 MECU/p.a. Plan of research: 1. Development of new composite materials (electrodes, tubular wires, powders) with optimal chemical compositions for hydroabrasive and abrasive conditions (2 years): - Professor N. A. Grinberg, Dr. Sc., VNIIST, Moscow RUSSIAN FEDERATION (+ 3 technicians). 2. Development of the production technology of boride powders by self-spreading high temperature synthesis (1 year). - Professor N. A. Grinberg (as above) - Dr. V. Uhvid, Research Institute for Microcinetics (+ 2 technicians), ACADEMY OF SCIENCES, Moscow. 3. Development of the technology for hardfacing the new composite materials and optimization of the hardfacing regime for real machine parts (2 years) - Associate Professor Pavel Blaskovic, Dr. Sc., (+ 2 technicians), VUZ (WELDING RESEARCH INSTITUTE), Bratislava, SLOVAK REPUBLIC. 4. Investigation into the friction and wear behaviour of the new composite hardfacing materials and a comparison with currently used materials (six months) - Associate Professor Pavel Blaskovic Dr. Sc. (+ 1 technician) VUZ (as above). - Dr. Jan Suchanek + 1 technician, RESEARCH INSTITUTE FOR MATERIALS, Prague, CZECH REPUBLIC. 5. Practical industrial tests and comparison with currently used materials as regards long life and cost (1 year) Dr. Helena Gouveia ISQ, Oeiras, PORTUGAL + 2 technicians. All the research activities are concerned with the filler materials by various techniques of hardfacing and the choice of these hardfacing materials using wear tests, field tests and material characterisation techniques, namely formation of carbides, borides, their distribution and matrix characterisation. Competence of the laboratory: (To be written separately by each participant). Cooperation: There is strong synergy between the five projects. The groups will meet once or twice a year to refer and describe their results and develop joint subprojects. Partners will prepare brief reports for each joint meeting. The first occasion we will have will be at the international conference to be held in April, 1996 in the SLOVAK REPUBLIC ("INTERTRIBO' 96). The second occasion will be the international EUROMETALWORKING '96 conference to be held in Bratislava (September, 1996). Proposed subcontractors: (To be written separately by each participant). Dissemination of results: This project will involve industrial partners who will exploit the results. The SLOVAK REPUBLIC has workshop centres in metallurgy for the industrial production of spare parts by hardfacing technologies. There it is very simple to apply new materials and technologies. It serves as a good example to other countries. Presentation: All results will be presented at the international tribology symposium INTERTRIBO '96 to be held in the SLOVAK REPUBLIC.
Acronym: 
EXCOAT
Project ID: 
1 486
Start date: 
01-07-1996
Project Duration: 
78months
Project costs: 
500 000.00€
Technological Area: 
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.