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Jožef Stefan
International
Postgraduate School

Jamova 39
SI-1000 Ljubljana
Slovenia

Phone: +386 1 477 31 00
Fax: +386 1 477 31 10
Email: info@mps.si

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Course Description

Heat Treatment and Surface Engineering of Metals

Program

Nanosciences and Nanotechnologies, third-level study programme

Lecturers:

prof. dr. Vojteh Leskovšek
prof. dr. Bojan Podgornik

Goals:

Postgraduate study of this object will be organised for scientific perfecting from field of technologies of heat treatment and surface engineering of metallic materials, modelling of processes and production management. Gained knowledge will allowed using of scientific methods for solving of complex scientifically-research tasks, of guidance of developmental and of research programmes, as also for development and use of new technology with goal of revitalisation and modernizations of production.

To educate students for understanding and planning and conducting of processes of heat treatment at which metallic parts intentionally emphasise temperature-time cycle, that we achieve desired microstructure and mechanical, physical and chemical characteristics wanted with this.

To educate students for understanding and planning and implementing of processes of surface engineering that based upon on new findings in frame of solid-state physics and of thermodynamics of processes, on development of sensors and on development and uses of mathematical models and software for direction of processes.

Namely, extensive number of existent procedures of heat treatment, modifications and coverings of surfaces, which them serve with goal to increase resistance against wear out and fatigue strength of machine elements and of tools, all are asserting oneself more in industrial practice, and new procedures also occur. Each of procedures is specific so from point of view of similarity of mechanisms and of conditions of wear out, as also from point of view of usability of treated materials and of technological specialities of use. That is why correct selection of procedure is connected with complete analysis of all influential factors always.

Doctor of this direction is trained for work: in research laboratories for materials, on institutes and centres for development of products and technology in industry, as lecturer on faculties and secondary schools, in production, in departments for characterization of materials in control of quality in industry, as businessman in establishing and direction of company based on knowledge.

Content:

1 Phases and Structures
Perlite, Ferite, and Cementite
Martesite and Bainite

2 Transformation on heating
3 Transformation γ → α
4 Heat Treatments to Produce Ferrite Pearlite
5 Hardness and Hardenability
6 Austenite in Steels
7 Tempering of Steels

8 Special Heat Treatments
Stainless Steels
Tool and HSS Steels
Cast Irons
Heat Treatment of non ferrous alloys Al, Cu, Mg, Ni and Ti

9 Modification of surfaces9
Mechanical Modification
Surface Hardening
Thermo-chemical modification

10 Surface deposition processes:
Heat deposition
Mechanical deposition
Thermo-mechanical Deposition
Chemical Deposition
Electrochemical Deposition
Vapour Deposition

11 Boundary Processes:
Ion Implantation
Anodic Oxidation
Thermo-chemical diffusion Deposition

12 Selected Chapters of Tribology

Course literature:

[1] George Krauss, Steels: Heat treatment and processing principles, ASM International,Materials park,Ohio,1997
[2] A.Constant,G.Henry,J.-C. Charbonnier, Priciples de base des tratements thermiques thermomechaniques et thermochimiques des aciers, PYC Edition, Verdun 1992
[3] Heat treating, Metals handbook, Ninth edition, Volume 4, ASM International, Materials park, Ohio, 1997
[4] K.E. Thelning, Steel and its Heat treatment, Bofors Handbook, Bofors 1974
[5] Roger Fabian, Vacuum Technology (Practical Heat treating and Brazing), ASM International Materials Park,OH 44073-0002, 1993
[6] Ray W. Reynoldson, Heat treatment in Fluidzed Bed Furnaces, ASM International Materials Park,OH 44073-0002, 1993
[7] S.Grainger, Engineering coatings – design and application, Ablington Publishing, Chambrige, 1989
[8] S. L. Semiatin and D.E. Stutz, Induction Heat Treatment of Steel,ASM American Society for Metals, Metals Park, Ohio 44073, 1986
[9] L.J. Durney, Electroplating engineering handbook, Fourth ed.,Chapman&Hall, London, 1996
[10] R.F. Bunshah, Handbook of hard coatings, Deposition technologies, properties and applications, Noyes Publications, Park Ridge, 2001
[11] Izbrana poglavja iz tribologije, sodelovanje s CTD FS UL (Horst Czichos, Trybology, Elsevier scientific publishing company, Amsterdam-Oxford-New York, 1978
[12] H.K.D.H. Bhaeshia, Steels, Microstructure and Properties, Third edition 2006 Butterworth-Heinemann, Oxford OX2 8DP, UK

Significant publications and references:

1.Kalin M, Leskovsek V, Vizintin J: Wear behavior of deep-cryogenic treated high-speed steels at different loads MATERIALS AND MANUFACTURING PROCESSES 21 (8): 741-746 NOV-DEC 2006
2. Leskovsek V, Sustarsic B: Optimizing the vacuum heat-treatment of hot-work tool steels by linear elastic fracture mechanics MATERIALS AND MANUFACTURING PROCESSES 21 (8): 819-823 NOV-DEC 2006
3. Nolan D, Leskovsek V, Jenko M: Estimation of fracture toughness of nitride compound layers on tool steel by application of the Vickers indentation method SURFACE & COATINGS TECHNOLOGY 201 (1-2): 182-188 SEP 12 2006
4. Leskovsek V, Sustarsic B, Jutrisa G: The influence of austenitizing and tempering temperature on the hardness and fracture toughness of hot-worked H11 tool steel JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 178 (1-3): 328-334 SEP 14 2006
5. Nolan D, Huang SW, Leskovsek V, et al.: Sliding wear of titanium nitride thin films deposited on Ti-6Al-4V alloy by PVD and plasma nitriding processes SURFACE & COATINGS TECHNOLOGY 200 (20-21): 5698-5705 MAY 22 2006
6. Leskovsek V, Sustarsic B, Baksa D: An assessment of vacuum-heat-treated H11 hot-work tool steel using the Klc/HRc ratio
STEEL RESEARCH INTERNATIONAL 77 (3): 218-223 MAR 2006
7. Leskovsek V, Kalin M, Vizintin J: Influence of deep-cryogenic treatment on wear resistance of vacuum heat-treated HSS
VACUUM 80 (6): 507-518 MAR 10 2006
8. Podgornik B, Hogmark S, Sandberg O, et al.: Wear resistance and anti-sticking properties of duplex treated forming tool steel WEAR 254 (11): 1113-1121 OCT 2003
9. Leskovsek V, Ule B: Influence of deep cryogenic treatment on microstructure, mechanical properties and dimensional changes of vacuum heat-treated high-speed steel HEAT TREATMENT OF METALS 29 (3): 72-76 2002
10. Leskovsek V, Ule B: Fracture toughness as a criterion for optimising the heat treatment of high-speed steel HEAT TREATMENT OF METALS 28 (2): 39-45 2001
11. Leskovsek V, Ule B, Liscic B: The influence of microstructure on the fracture toughness of AISI M2 high-speed steel STEEL RESEARCH 71 (8): 310-315 AUG 2000
12. Ule B, Leskovsek V, Tuma B: Estimation of plain strain fracture toughness of AISI M2 steel from precracked round-bar specimens ENGINEERING FRACTURE MECHANICS 65 (5): 559-572 MAR 2000
13. Podgornik B, Vizintin J, Leskovsek V: Wear properties of induction hardened, conventional plasma nitrided and pulse plasma nitrided AISI 4140 steel in dry sliding conditions WEAR 232 (2): 231-242 OCT 1999
14. Podgornik B, Vizintin J, Leskovsek V: Tribological properties of plasma and pulse plasma nitrided AISI 4140 steel SURFACE & COATINGS TECHNOLOGY 108 (1-3): 454-460 OCT 10 1998

Examination:

• seminar and oral exam

Students obligations:

• seminar and oral exam

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