Institute of Physics of Materials AS CR, v. v. i. > People > Kunz Ludvík

prof. RNDr. Ludvík Kunz, CSc., dr. h. c.

Room112
Phone number+420 532 290 379
E-mail[javascript protected email address]
Researcher IDF-7508-2014
ORCID0000-0002-7651-4513
Positionresearcher - High Cycle Fatigue Group

Scientific interest
  • Relations among material microstructure and mechanical properties
  • Fatigue of materials
  • Fatigue/creep interaction

Education
  • 1973-1977: Scientific postgraduate studies - Ústav fyzikální metalurgie ČSAV, Physical metallurgy
  • 1966-1970: Master’s degree - Univerzita J. E. Purkyně, Faculty of Natural Sciences, Solid state physics
Work experiences
  • From 2023: Researcher - High Cycle Fatigue Group, Institute of Physics of Materials, CAS
  • 2012-2022: Director - Institute of Physics of Materials, CAS
  • 2004: Professor (Žilina University)
  • 1997: Docent (Žilina University)
  • 1994-2012: Head of Scientific Department - High Cycle Fatigue Group, Institute of Physics of Materials, CAS
  • 1977-2023: Researcher - High Cycle Fatigue Group, Institute of Physics of Materials, CAS
  • 1973-1977: Scientific Aspirant - High Cycle Fatigue Group, Ústav fyzikální metalurgie ČSAV
  • 1970-1973: Professional staff member - High Cycle Fatigue Group, Ústav fyzikální metalurgie ČSAV
  • 1968-1970: Scientific assistant - High Cycle Fatigue Group, Ústav vlastností kovů ČSAV
International internships
  • 1980: Scientific stay - Institut problem pročnosti , Kijev, SSSR
  • 1984: Scientific stay - Pädagogische Hochschule Dresden, Dresden, East Germany
  • 1986: Scientific stay - Pädagogische Hochschule Dresden, Dresden, East Germany
  • 1988: Scientific stay - Technische Hochschule Karlsruhe, Karlsruhe, West Germany
Awards
  • 2025: Silver medal of Brno University of Technology
  • 2019: Silver medal of Masaryk University           
  • 2019: Czech Technology Agency Award
  • 2008: dr. h. c. degree, Žilina University

2024

Doubek P., Kozáková K., Kunz L., Seitl S.: Fatigue life of S960 high strength steel with laser cladded functional surface layers. Eng. Fail. Anal. 164 (2024) 108629


2023

Seitl S., Horník V., Lesiuk G., Kunz L.: Influence of micro-structure of selected components made from AISI 304 on the mechanical properties. Procedia Struct. Integr. 43 (2023) 113-118

Fintová S., Kunz L., Chlup Z., Kuběna I., Mertová K., Hradil D., Duchek M.: Grain refinement effect on fatigue life of two grades of commercially pure titanium. Int. J. Fatigue 176 (2023) 107883


2022

Konečná R., Nicoletto G., Kunz L., Jambor M.: Notch orientation and fatigue strength of as-built L-PBF AlSi10Mg. Procedia Struct. Integr. 42 (2022) 857-862

Beneš J., Kunz L., Liška J., Šrám J., Krbec M., Džupa V., Křivohlávek M., Návrat T.: Determination of stress and displacement on human composite pelvis under static and dynamic loading. J. Eng. in Medicine 236 (2022) 951-959


2021

Fintová S., Trško L., Chlup Z., Pastorek F., Kajánek D., Kunz L.: Fatigue Crack Initiation Change of Cast AZ91 Magnesium Alloy from Low to Very High Cycle Fatigue Region. Materials 14 (2021) 6245


2020

Fintová S., Kuběna I., Palán J., Mertová K., Duchek M., Hutař P., Pastorek F., Kunz L.: Influence of sandblasting and acid etching on fatigue properties of ultra-fine grained Ti grade 4 for dental implants. J. Mech. Behav. Biomed. Mater. 111 (2020) 104016

Fintová S., Kuběna I., Trško L., Horník V., Kunz L.: Fatigue behavior of AW7075 aluminum alloy in ultra-high cycle fatigue region. Mater. Sci. Eng. A 774 (2020) 138922

Šmíd M., Horník V., Kunz L., Hrbáček K., Hutař P.: High Cycle Fatigue Data Transferability of MAR-M 247 Superalloy from Separately Cast Specimens to Real Gas Turbine Blade. Metals 10 (2020) 1460-1476

Seitl S., Pokorný P., Miarka P., Klusák J., Kala Z., Kunz L.: Comparison of fatigue crack propagation behaviour in two steel grades S235, S355 and a steel from old crane way. MATEC Web Conf. 310 (2020) 34


2019

Kunz L., Pokorný P., Konečná R., Nicoletto G.: Propagation of long fatigue cracks in Ti6Al4V alloy produced by direct metal laser sintering. Procedia Struct. Integr. 17 (2019) 222-229

Horník V., Fintová S., Šmíd M., Hutař P., Hrbáček K., Kunz L.: Fatigue properties of B1914 superalloy at high temperatures. Procedia Struct. Integr. 23 (2019) 191-196

Horník V., Fintová S., Šmíd M., Hutař P., Hrbáček K., Kunz L.: Interaction of fatigue and creep in MAR-M 247 superalloy. Procedia Struct. Integr. 23 (2019) 197-202

Seitl S., Miarka P., Pokorný P., Fintová S., Kunz L.: COMPARISON OF MECHANICAL PROPERTIES OF OLD STEEL FROM TRUSS CRANE RUNWAY WITH S235 AND S355 GRADES. Trans. VSB TU Ostrava Ser. 19 (2019) 56-60


2018

Nicoletto G., Konečná R., Kunz L., Frkáň M.: Influence of as-built surface on fatigue strength and notch sensitivity of Ti6Al4V alloy produced by DMLS. MATEC Web Conf. 165 (2018) 02002

Seitl S., Miarka P., Klusák J., Fintová S., Kunz L.: Comparison of the Fatigue Crack Propagation Rates in S355 J0 and S355 J2 Steel Grades. Key Eng. Mater. 784 (2018) 91-96


2017

Konečná R., Kunz L., Bača A., Nicoletto G.: Resistance of direct metal laser sintered Ti6Al4V alloy against growth of fatigue cracks. Eng. Fract. Mech. 185 (2017) 82-91

Horník V., Šmíd M., Hutař P., Kunz L., Hrbáček K.: Interaction of Creep and High Cycle Fatigue of IN 713LC Superalloy. Solid State Phenom. 258 (2017) 595-598

Konečná R., Kunz L., Pokorný P., Nicoletto G.: Fatigue Crack Growth and Threshold Behavior of DMLS Ti6Al4V. Solid State Phenom. 267 (2017) 157-161

Fintová S., Arzaghi M., Kuběna I., Kunz L., Sarazin-Baudoux C.: Fatigue crack propagation in UFG Ti grade 4 processed by severe plastic deformation. Int. J. Fatigue 98 (2017) 187-194


2016

Konečná R., Nicoletto G., Kunz L., Riva E.: The role of elevated temperature exposure on structural evolution and fatigue strength of eutectic AlSi12 alloys. Int. J. Fatigue 83 (2016) 24-35

Šmíd M., Hutař P., Horník V., Hrbáček K., Kunz L.: Stage I fatigue cracking in MAR-M 247 superalloy at elevated temperatures. Procedia Struct. Integr. 2 (2016) 3585-3592

Bača A., Konečná R., Nicoletto G., Kunz L.: Influence of build direction on the fatigue behaviour of Ti6Al4V alloy produced by direct metal laser sintering. Materials Today: Proceedings 3 (2016) 921-924

Konečná R., Kunz L., Nicoletto G., Bača A.: Fatigue crack growth behavior of Inconel 718 produced by selective laser melting. Frattura ed Integrita Strutturale 10 (2016) 31-40

Konečná R., Kunz L., Nicoletto G., Bača A.: Long fatigue crack growth in Inconel 718 produced by selective laser melting. Int. J. Fatigue 92 (2016) 499-506

Šmíd M., Horník V., Hutař P., Hrbáček K., Kunz L.: High Cycle Fatigue Damage Mechanisms of MAR-M 247 Superalloy at High Temperatures. Trans. Indian Inst. Metals 69 (2016) 393-397


2015

Fintová S., Kunz L.: Fatigue properties of magnesium alloy AZ91 processed by severe plastic deformation. J. Mech. Behav. Biomed. Mater. 42 (2015) 219-228

Šmíd M., Fintová S., Kunz L., Hutař P., Hrbáček K.: Prediction of maximum casting defect size in MAR-M 247 alloy processed by hot isostatic pressing. Materials Engineering - Materialove inzinierstvo 2 (2015) 25-32


2014

Fintová S., Kunz L.: Initiation of fatigue cracks in AZ91 Mg alloy processed by ECAP. Mater. Sci. Eng. A 63 (2014) 012159

Šmíd M., Kunz L., Hutař P., Hrbáček K.: High cycle fatigue of nickel-based superalloy MAR-M 247 at high temperatures. Procedia Eng. 74 (2014) 329-332

Kunz L., Lukáš P., Navrátilová L.: Strain localization and fatigue crack initiation in ultrafine-grained copper in high- and giga-cycle region. Int. J. Fatigue 58 (2014) 202-208

Kunz L., Fintová S.: Initiation of fatigue cracks in ultrafine-grained materials in high-cycle fatigue region. Procedia Eng. 74 (2014) 2-5

Fintová S., Kunz L.: Cyclic plastic behavior and fatigue life of AZ91 alloy in as-cast and ultra-fine grained state. Materials Engineering - Materialove inzinierstvo 21 (2014) 109-115

Konečná R., Nicoletto G., Kunz L., Svoboda M., Bača A.: Fatigue strength degradation of AlSi12CuNiMg alloy due to high temperature exposure: a structural investigation. Procedia Eng. 74 (2014) 43-46

Kunz L., Fintová S.: Fatigue behaviour of AZ91 magnesium alloy in as-cast and severe plastic deformed conditions. Adv. Mater. Res. 891-892 (2014) 397-402

Fintová S., Pantělejev L., Kunz L.: Microstructure and Mechanical Properties of Ultrafine-Grained Magnesium AZ91 Alloy. Mater. Sci. Forum 782 (2014) 384-389


2012

Kunz L., Lukáš P., Klusák J.: Fatigue Strength of Weathering Steel. Mater. Sci. 18 (2012) 18-22

Kunz L., Lukáš P., Konečná R., Fintová S.: Casting defects and high temperature fatigue life of IN 713LC superalloy. Int. J. Fatigue 41 (2012) 47-51


2011

Kunz L., Lukáš P., Pantělejev L., Man O.: Stability of Microstructure of Ultrafine-Grained Copper Under Fatigue and Thermal Exposition. Strain 47 (2011) 476-482

Bubenko L., Konečná R., Kunz L., Nicoletto G.: Fatigue crack propagation within the austempered ductile iron microstructure. Acta Metall. Slovaca 17 (2011) 18-25

Kunz L., Lukáš P., Konečná R.: Combined cycle fatigue of Ni-base superalloy. Key Eng. Mater. 465 (2011) 523-526

Lukáš P., Kunz L., Navrátilová L., Bokůvka O.: Fatigue damage of ultrafine-grain copper in very-high cycle fatigue region. Mater. Sci. Eng. A 528 (2011) 7036-7040

Wang Q., Du Z., Liu X., Kunz L.: Fatigue Property and Fatigue Cracks of Ultra-fine Grained Copper. Mater. Sci. Forum 682 (2011) 231-237

Vlk M., Kunz L., Rozlívka L.: Únavové vlastnosti patinující oceli. Konstrukce 4 (2011) 75-79

Pantělejev L., Man O., Kunz L.: Microstructural stability of ultrafine grained copper at elevated temperature. Acta Metall. Slovaca 17 (2011) 158-162

Kunz L., Lukáš P., Pantělejev L., Man O.: Stability of ultrafine-grained structure of copper under fatigue. Procedia Eng. 10 (2011) 201-206


Number of ProjectName
FV30219 3D print of implants for treating of a damaged skeleton, especially the human pelvis
RVO 68081723 Long-term conceptual development of research organizations
GA ČR P108/10/2001 Cyclic plastic deformation and fatigue properties of ultrafine-grained materials
FT-TA4/023 Research and development of mechanical properties of the materials used for new types of turbochargers ...
1QS200410502 Properties of engineering materials under development applicable in the near future in traffic, medicine and power generating industry
106/05/2112 High-cycle fatigue of Ni-base superalloys at high mean stresses
1P05ME804 Fatigue behaviour of ultra fine-grained Copper and Magnesium alloy materials
IBS2041001 Degradation of properties and lifetime assessment of engineering materials under mechanical loading