Loading...
Projects / Programmes source: ARIS

Technologies of metastable metallic based materials

Periods
Research activity

Code Science Field Subfield
2.04.02  Engineering sciences and technologies  Materials science and technology  Metallic materials 
2.10.02  Engineering sciences and technologies  Manufacturing technologies and systems  Manufacturing technology 

Code Science Field
T150  Technological sciences  Material technology 

Code Science Field
2.05  Engineering and Technology  Materials engineering 
2.03  Engineering and Technology  Mechanical engineering 
Evaluation (rules)
source: COBISS
Researchers (18)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  10369  PhD Ivan Anžel  Materials science and technology  Head  2013 - 2016  711 
2.  20229  PhD Mihael Brunčko  Materials science and technology  Researcher  2013 - 2016  249 
3.  33259  PhD Janko Ferčec  Materials science and technology  Junior researcher  2013 - 2014  45 
4.  05168  PhD Vladimir Gliha  Manufacturing technologies and systems  Researcher  2013  338 
5.  16185  PhD Leo Gusel  Manufacturing technologies and systems  Researcher  2013 - 2016  153 
6.  39336  Andraž Jug  Materials science and technology  Junior researcher  2016 
7.  01375  PhD Janez Kramberger  Mechanical design  Researcher  2013  527 
8.  11951  PhD Gorazd Lojen  Materials science and technology  Researcher  2013 - 2016  253 
9.  35509  PhD Peter Majerič  Manufacturing technologies and systems  Researcher  2014 - 2016  188 
10.  30499  Igor Orožim    Technical associate  2013  42 
11.  19268  PhD Zdenka Peršin Fratnik  Materials science and technology  Researcher  2013 - 2016  225 
12.  34919  Ida Rajić Kranjac    Technical associate  2013 - 2015 
13.  14335  PhD Rebeka Rudolf  Manufacturing technologies and systems  Researcher  2013 - 2016  1,084 
14.  31992  PhD Matej Steinacher  Materials science and technology  Researcher  2014 - 2016  61 
15.  09376  Viljem Šprah    Technical associate  2016  46 
16.  17123  Rok Šulek    Technical associate  2016  71 
17.  15682  PhD Tomaž Vuherer  Manufacturing technologies and systems  Researcher  2013 - 2016  512 
18.  12295  PhD Franc Zupanič  Materials science and technology  Researcher  2013 - 2016  483 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0795  University ob Maribor, Faculty of mechanical engineering  Maribor  5089638010  23,840 
Abstract
The main topic of the research program with the title ˝Technologies of metastabile metallic based materials˝ is development of new materials based on thermodynamically metastable states. The challenge of development of these materials is based on the facts, that materials in thermodynamically metastable state do not have the same mechanical, physical and chemical properties as in the stable state. The rapidly solidified materials, quasicrystals and nanostructural materials are the examles of metastable materials that will be treated in the proposed research project. The development of these materials is mainly connected with explorations of the process technologies, microstructural examination, characterizations of stability of metastable phases at different conditions and with study of influences of aging on mechanical, physical, chemical and functional properties. For production of thermodynamically metastabile materials different technologies will be used and developed, as for instance: diverse rapid solidification procedures and castings forming technologies including severe plastic deformation, heat and thermomechanical treatments and ultrasonic spray pyrolysis. The programme group will also transfer the findings and knowledge about the influences of the rapid solidification on the evolution of metastable states to the field of welding technologies of high-strength metallic materials used for special applications. Materials that will be made with abovementioned technologies belong to the group of biomedical functional nanostructural materials or high strength thermodynamically metastabile materials, respectively. The materials from the first group are specific due to their response on the environmental changes and for those from the second group the specific combination of mechanical properties is characteristic. In the field of biomedical functional nonstructural materials the research will be focused on the examinations of gold nanoparticles and shape memory alloys (SMA) based on gold and titanium alloys. The functionality of the gold nanoparticles is in the fact that they are able to trigger the specific cell reactions or they show the capability of binding with biomolecules which have the affinity for variety of bacteria. On the other side, the functionality of SMA-s is indicated in pseudoplasticity superelasticity, one-way shape memory effect and two-way shape memory effect. The aluminium quasicrystalline alloys will play the important role in the field of high-strength thermodynamically metastable materials. These alloys were already developed during the previous research program. Further research work will be focused on development of new technologies which will enable transfer of metastable materials in the industrial practice.
Significance for science
Investigation of production and characterization of materials in metastable states are of great importance for the fields of technical and natural sciences. The research value of performed program in the period 2013-2016 is primarily in explaining the mechanisms of nanoparticles and nanostructural materials formation, in evaluating of their applicability in medicine and in gaining new knowledge on mutual dependence of the chemical composition, purity of the alloys, grain refining alloying elements, parameters of rapid solidification, microstructure, heat treatments, mechanical treatments, training and fatigue parameters, mechanical and functional properties. Because of limited knowledge in the field of technologies of gold nanoparticles and their biocompatibility, offers the realized research work in the frame of the program a lot of original experimental results and scientific contributions. Explorations of synthesis of nanostructural particles, characterization of their microstructure and studies of the properties of nanostructural metastable materials are interdisciplinary and important for different fields of sciences. The program group has succeeded with the results of the research work in the framework of this program to give the answers on some open scientific questions that clarify first of all the mechanisms of certain processes and phenomena in the process of arising nanostructural Au particles. Results of the program indicate the way for development of new technologies and materials. In the field of development of functional nanostructural materials are essential the obtained new knowledges on usability of the methods of ultrasonic spray pyrolysis for the production and synthesis of gold nanoparticles for biomedical applications and explanations of the influence of decreasing size of microstructural elements and dimensions of produced components on their functional properties. For the science are important also the additional explorations and new findings about the influence of lattice-defects in the crystal structure of metastable materials on the course of chemical reactions and phase transformatios in solid state. Namely, the results of already performed research work has been confirmed. They show that in the metastable microstructures of pure metals with an increased concentration of defects, the chemical reactions occur, which cannot be expected or anticipated in the thermodynamically stable states. The knowledge about the interaction of dislocations with quasicrystalline particles, understanding of the quasicrystals behaviour during plastic deformation and developing of the models of hardening the alloys by a combination of coherent and incoherent crystalline particles as well as quasicrystalline particles in the metal matrices are essential for the development of science in the field of quasicrystalline metastable materials. The explanations of mechanisms of transformation and precipitations of phases in the alloys which in the initial state contain the metastable quasicrystals enable further development of these alloys.
Significance for the country
Different procedures of rapid solidification and casting processes, the various technologies of forming including the technology of extreme plastic deformation, the procedures of heat and thermomechanical treatments and the method of nanoparticles production by ultrasonic spray pyrolysis have been used and developed for the production of metastable nanostructural materials in the programme of our programme group. Development of new technologies or innovative combination of existing already known procedures for the manufacture of metastable nanostructural materials has been one of the central and original research activities of our programme team and represents the potential for technological development in Slovenia. Such an example is the injection moulding. The process belongs to the group of environmentally-friendly technologies, since the subsequent treatment of the products is eliminated to a large extent and by the correct design of the tools the scrap of material is minimal. Injection moulded products can be recycled. The technology of the injection moulding of biomedical shape memory alloys could be relatively quickly introduced into the Slovenian economic environment. The price of gold particles of nano-size compared with micro particles of gold is at least five times higher. Even greater difference occurs in the nanostructural materials that are made with traditional methods. The results of the programme group present therefore an excellent opportunity for new investments in cooperation with the Slovenian industrial partners. Slovenia has a lot of successful companies, dealing with the production and processing of aluminium and precious metals. These companies are familiar with the technologies of established alloys, but most of them achieve proportionally low added value. If they want to remain competitive in the future they have to be qualified for technologies, which enable the production of advanced materials and products. The results of our research programme give some of those fundamental knowledges that are necessary for high-tech breakthrough in the industrial field of metallic materials. With deepening of the theoretical knowledge about the materials and technologies and with development and management of modern technologies, the support and fundamentals for continuing development of Slovene metal industry is being supplemented and broadened
Most important scientific results Annual report 2013, 2014, 2015, final report
Most important socioeconomically and culturally relevant results Annual report 2013, 2014, 2015, final report
Views history
Favourite