Optimisation and Modelling of Thermal Processes of Materials (OMOTPOM)
Funded by: Croatian Science Foundation - project 5371
Activities and selected results
Second project year
In the second year of research, main focus was on heat treatment, casting and welding. Extensive research has been done regarding the mentioned thermal processes. Computer models and programs for simulation of mechanical properties and microstructure distribution after thermal processing have been developed.
Besides computer modelling of mentioned thermal processes, great effort was put into developing and improving the thermal process for increasing the adhesiveness of electroless Ni-P coatings on substrates made of stainless steel. Processing parameters for application of coatings on stainless steel have been defined regarding to results of testing of adhesiveness.
Selected results
Accomplished results have been published in the following book chapter:
- B. Smoljan; Quench Processing: Multiple. In Encyclopedia of Iron, Steel, and Their Alloys; Taylor and Francis: New York, 31 March 2016; 2683-2705,
in the following scientific journal:
- B. Smoljan, D. Iljkić, G. E. Totten; Mathematical Modelling and Simulation of Hardness of Quenched and Tempered Steel; Metallurgical and Materials Transactions B (46) 6; Springer, USA; 2015.; 2666-2673,
as well as on 10 conferences and their proceedings. Some of them are:
- B. Smoljan; D. Iljkić; L. Štic; L. Pomenić; S. Smokvina Hanza; Numerical modelling of case hardening of steel; Proceedings of the International Conference MTSM 2016; Split, Croatia,
- B. Smoljan; D. Iljkić; L. Štic; Computer modelling of quenching of steel die for industrial purpose; Proceedings of the International Conference HTDC 2016., Venice, Italy,
- B. Smoljan; D. Iljkić; L. Štic; N. Tomašić; S. Smokvina Hanza; Mathematical modelling of mechanical properties and microstructure of welded joint; Proceedings of the 41st International Conference WELDING 2016; Opatija, Croatia,
- B. Smoljan; D. Iljkić; L. Štic; Mathematical Modeling and Computer Simulation of Non-monotonic Quenching; Proceedings of the 23rd IFHTSE Congress; Savannah, USA.
Project summary
Thermal processing of materials is one of the most important factors in production and reliability of engineering components. All varieties of material thermal processing technology, from heat treatment, casting and hot metal forming, to the welding, not only manufactures workpieces of required shapes but also optimizes their final properties. Objective of the optimisation of thermal processes of materials is development of models and computer simulations of thermal processes of materials and study of optimizing the application of tools and dies in thermal processing of materials.
During the thermal processing, physical processes and material properties such as: heat transfer, microstructure transformations, mechanical properties and distortions and residual stresses will be studied primarily. To solve these tasks, joined thermo-mechanic-metallurgical approach will be required. The computer program for simulation of heat transfer, microstructure transformations, mechanical properties, distortions and residual stresses during the thermal processes will be analyzed.
To meet the needs of industry to control and optimize the thermal process parameters, developed computer programs for simulation of the thermal processes will be accomplished by considering the achievement of:
- Required workpiece shape,
- Desired mechanical property distribution,
- Desired microstructure distribution by avoidance of cracking as well as reduction of distortion and residual stresses.
Principal investigator
Prof. Božo Smoljan, D. Sc., Faculty of Engineering, University of Rijeka
Team members
Prof. Dražen Živković, D. Sc., Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split;
Prof. Domagoj Rubeša, D. Sc., Faculty of Engineering, University of Rijeka;
Assist. Prof. Branimir Lela, D. Sc., Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split;
Prof. Loreta Pomenić, D. Sc., Faculty of Engineering, University of Rijeka;
Prof. Zvonimir Kolumbić, D. Sc., Faculty of Humanities and Social Science, Rijeka;
Assist. Prof. Dario Iljkić, D. Sc., Faculty of Engineering, University of Rijeka;
Assist. Prof. Sunčana Smokvina Hanza, D. Sc., Faculty of Engineering, University of Rijeka;
Neven Tomašić, D. Sc. Student; RENETEH Ogulin d.o.o.;
Hrvoje Novak, D. Sc. Student; NMP Produkt d.o.o.;
Mauro Maretić, D. Sc. Student, Technical High School, Pula;
Goran Salopek, D. Sc. Student, Faculty of Humanities and Social Sciences, University of Rijeka;
Zvonimir Dadić, D. Sc. Student, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split;
Nikša Čatipović, D. Sc. Student, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split;
Lovro Štic, D. Sc. Student, Faculty of Engineering, University of Rijeka;
Andrej Borić, D. Sc. Student, Faculty of Engineering, University of Rijeka