Position: head
Group: Low Cycle Fatigue Group
Rooms: 111
Phone numbers: +420 532 290 366
Fax: +420 541 218 657
E-mail: polak@DELETE-THIS.CZ@DELETE-THIS.COMipm.COM.cz
         ZIZKOVA 22
616 62 Brno Czech Republic
ICO: 68081723
DIC: CZ68081723 |
prof. RNDr. Jaroslav Polák, DrSc., dr. h. c.
Position: head
Group: Low Cycle Fatigue Group Rooms: 111 Phone numbers: +420 532 290 366 Fax: +420 541 218 657 E-mail: polak@DELETE-THIS.CZ@DELETE-THIS.COMipm.COM.cz Projects Novel principles for life prediction in variable loading of components
Fatigue life and residual fatigue life assessment based on the kinetics of short crack growth
Mechanisms of fatigue damage in natural composites
Publications: 2010 POLÁK J, PETRENEC M, KRUML T: Cyclic plastic response and fatigue life in superduplex 2507 stainless steel. Int. J. Fatigue 32 (2010) 279–287.
2009 MAN J, OBRTLÍK K, POLÁK J: Extrusions and intrusions in fatigued metals. Part 1. State of the art and history. Phil. Mag. 89 (2009) 1295–1336.
MAN J, KLAPETEK P, MAN O, WEIDNER A, OBRTLÍK K, POLÁK J: Extrusions and intrusions in fatigued metals. Part 2. AFM and EBSD study of the early growth of extrusions and intrusions in 316L steel fatigued at room temperature. Phil. Mag. 89 (2009) 1337–1372.
POLÁK J, SAUZAY M: Growth of extrusions in localized cyclic plastic straining. Mater. Sci. Eng. A 500 (2009) 122–129.
POLÁK J, MAN J, VYSTAVĚL T, PETRENEC M: The shape of extrusions and intrusions and initiation of stage I fatigue cracks. Mater. Sci. Eng. A 517 (2009) 204–211.
2008 WEIDNER A, MAN J, TIRSCHLER W, KLAPETEK P, BLOCHWITZ C, POLÁK J, SKROTZKI W: The half-cycle slip activity of persistent slip bands at different stages of fatigue life of cyclically strained polycrystalline nickel. Mater. Sci. Eng. A 492 (2008) 118–127.
PETRENEC M, OBRTLÍK K, POLÁK J, MAN J: Dislocation structures in nickel based superalloy inconel 792-5A fatigued at room temperature and 700 °C. Mater. Sci. Forum 567–568 (2008) 429–432.
POLÁK J, PETRENEC M, MAN J: Cyclic stress in 316L austenitic stainless steel at low temperatures. Mater. Sci. Forum 567–568 (2008) 401–404.
2007 PETRENEC M, OBRTLÍK K, POLÁK J: High temperature low cycle fatigue of superalloys Inconel 713LC and Inconel 792-5A. Key Eng. Mater. 348–349 (2007) 101–104.
PETRENEC M, OBRTLÍK K, POLÁK J, MAN J: Effect of temperature on the low cycle fatigue of cast Inconel 792-5A. Key Eng. Mater. 345–346 (2007) 383–386.
POLÁK J, MAN J, VYSTAVĚL T, ZOUHAR L: Fatigue crack initiation in crystalline materials – experimental evidence and models. Key Eng. Mater. 345–346 (2007) 379–382.
POLÁK J: Mechanisms and kinetics of the early fatigue damage in crystalline materials. Mater. Sci. Eng. A 468-470 (2007) 33–39.
POLÁK J: Cyclic plastic response and fatigue life of materials. Key Eng. Mater. 348–349 (2007) 113–116.
KOTECKÝ O, DEGALLAIX S, POLÁK J: Growth of short fatigue cracks emanating from notches in an austenitic-ferritic stainless steel. Key Eng. Mater. 348–349 (2007) 117–120.
2006 MAN J, KLAPETEK P, OBRTLÍK K, POLÁK J: Early stages of fatigue damage in 316L steel. In: Proc. of the 16th European Conf. of Fracture (ECF 16), Fracture of Nano and Engineering Materials and Structures, E.E. Gdoutos (ed.). Dordrecht, Springer, 2006, CD ROM, paper No. 521-man.
MAN J, KLAPETEK P, MAN O, OBRTLÍK K, POLÁK J: AFM and EBSD study of the early stages of surface relief evolution in fatigued 316L steel at room temperature. In: Proc. of the 9th Int. Fatigue Congress (Fatigue 2006), CD ROM. Elsevier, 2006, paper No. FT330, 10p.
PETRENC M, OBRTLÍK K, POLÁK J, KRUML T: Fatigue behaviour of cast nickel based superalloy INCONEL 792-5A at 700 °C. Materials and Technology 40 (2006) 175–178.
PETRENEC M, POLÁK J, OBRTLÍK K, MAN J: Dislocation structures in cyclically strained X10CrAl24 ferritic steel. Acta Mater. 54 (2006) 3429–3443.
PETRENEC M, OBRTLÍK K, POLÁK J: Dislocation arrangements in cyclically strained Inconel 713LC. In: Proc. of the 16th European Conf. of Fracture (ECF 16), Fracture of Nano and Engineering Materials and Structures, E.E. Gdoutos (ed.). Dordrecht, Springer, 2006, CD ROM, paper No. 525-pet.
POLÁK J, MAN J, PETRENEC M: Mechanisms of the early fatigue damage in metallic materials. Komunikácie/ Communications 8 (4/2006) 5–9.
JENČUŠ P, POLÁK J, LUKÁŠ P, MURÁNSKY O: In situ neutron diffraction study of the low cycle fatigue of the alfa-gamma duplex stainless steel. Physica B 385–386 (2006) 597–599.
POLÁK J: Interpretation of the Coffin-Manson law in terms of short crack growth. In: Proc. of the 9th Int. Fatigue Congress (Fatigue 2006), CD ROM. Elsevier, 2006, paper No. FT 128.
2005 PETRENEC M, OBRTLÍK K, POLÁK J, MAN J, HRBÁČEK K: Fatigue behaviour of cast nicked based superalloy INCONEL 792-5A at room temperature. Materials Engineering 12 (3/2005) 21–24.
PETRENEC M, OBRTLÍK K, POLÁK J: Inhomogeneous dislocation structure in fatigued INCONEL 713 LC superalloy at room and elevated temperatures. Mater. Sci. Engng A400–401 (2005) 485–488.
PETRENEC M, OBRTLÍK K, POLÁK J, MAN J, HRBÁČEK K: Fatigue behaviour of cast nickel based superalloy INCONEL 792-5A at room temperature. Materials Engineering 12 (2005) 21–24 (in Czech).
PETRENEC M, AUBIN V, POLÁK J, DEGALLAIX S: Dislocation structures of duplex stainless steel in uniaxial and biaxial cyclic loading. Mater. Sci. Forum 482 (2005) 179–182.
LUKÁŠ P, JENČUŠ P, MURÁNSKY O, POLÁK J, ZRNÍK J: In-situ neutron diffraction studies of deformation and transformation characteristics of metals. CAMP-ISIJ Japan 18 (6/2005) 1408–1411.
POLÁK J, ZEZULKA P: Short crack growth and fatigue life in austenitic-ferritic duplex stainless steel. Fatigue Fract. Engng Mater. Struct. 28 (2005) 923-935.
POLÁK J, MAN J, OBRTLÍK K: Atomic force microscopy study of the early fatigue damage. Mater. Sci. Forum 482 (2005) 45-50.
POLÁK J, PETRENEC M, MAN J: Dislocation structure and surface relief in fatigued metals. Mater Sci. Engng A400-401 (2005) 405-408.
POLÁK J: Plastic strain controlled short crack growth and fatigue life. Int. J. Fatigue 27 (2005) 1192-2001.
POLÁK J: Cyclic plastic response and fatigue life of duplex and superduplex stainless steel, Metallic Mater. 43 (2005) 280-289.
2003 MAN J, OBRTLÍK K, POLÁK J: Study of surface relief evolution in fatigued 316L austenitic stainless steel by AFM. Mater. Sci. Engng A351 (2003) 123–132.
POLÁK J, MAN J, OBRTLÍK K: AFM evidence of surface relief formation and models of fatigue crack nucleation. Int. J. Fatigue 25 (2003) 1027–1036.
POLÁK J, MAN J, OBRTLÍK K, KRUML T: The shape of extrusions and intrusions produced by cyclic straining. Z. Metallkde. 94 (2003) 1327–1330.
POLÁK J: Cyclic Deformation, Crack Initiation, and Low Cycle Fatigue. In: Comprehensive Structural Integrity, I. Milne, R. O. Ritchie, B. Karihaloo, Eds. Vol. 4, Elsevier, Amsterdam, 2003, pp. 1–39.
2002 MAN J, OBRTLÍK K, BLOCHWITZ C, POLÁK J: Atomic Force Microscopy of surface relief in individual grains of fatigued 316L austenitic stainless steel. Acta Mater. 50 (2002) 3767–3780.
MAN J, VIČAR M, POLÁK J, OBRTLÍK K: Slip localization and surface relief evolution in fatigued ferritic X10CrAl24 stainless steel. Materials Engineering 9 (2002) 140–145 (in Czech).
PETRENEC M, OBRTLÍK K, POLÁK J: Dislocation structure in fatigued Inconel 713 LC superalloy at room and high temperature. Materials Engineering 9 (2002) 146–149 (in Czech).
POLÁK J, PETRENEC M, DEGALLAIX S: On the analysis of the hysteresis loop of ferritic steel in cyclic straining. Scripta Mater. 47 (2002) 731–736.
2001 KRUML T, POLÁK J: Fatigue softening of X10CrAl24 ferritic steel. Mater. Sci. Engng A319-321 (2001) 564–568.
POLÁK J, FARDOUN F, DEGALLAIX S: Analysis of the hysteresis loop in stainless steels, I. Austenitic and ferritic steels. Mater. Sci. Engng A297 (2001) 144–153.
POLÁK J, FARDOUN F, DEGALLAIX S: Analysis of the hysteresis loop in stainless steels, II. Austenitic-ferritic duplex steels and the effect of nitrogen. Mater. Sci. Engng A297 (2001) 154–161.
POLÁK J, KRUML T, OČENÁŠEK V: Fatigue damage in aluminium-lithium alloys, Part I. Cyclic plastic response and fatigue life. Metallic Mater. 39 (2001) 132–147 (in Czech).
POLÁK J, MAN J, OBRTLÍK K: Fatigue damage in aluminium-lithium alloys, Part II. Initiation and short crack growth. Metallic Mater. 39 (2001) 179–189 (in Czech).
2000 KRUML T, POLÁK J, DEGALLAIX S: Microstructure in 316LN stainless steel fatigued at low temperatures. Mater. Sci. Engng A293 (2000) 275–280.
MAN J, OBRTLÍK K, POLÁK J: Surface relief and its relation to the crystallographic orientation in fatigued copper single crystals. Metallic Mater. 38 (2000) 339–353 (in Czech).
POLÁK J, KRUML T: Cyclic plasticity, fatigue life and dislocation structures in ferritic stainless steel. Metallic Mater. 38 (2000) 239–252 (in Czech).
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Last update
11. 11. 2009 |