Editors and press        Scope        Editorial staff        Contact        Instructions for authors        Abstract databases        AMS online      Year 2013      Year 2012      Year 2011      Year 2010      Year 2009      Year 2008      Year 2007      Year 2006      Year 2005 1 2 3 4      Year 2004      Year 2003      Year 2002      Year 2001      Year 2000      Year 1999      Year 1998      Year 1997                Conferences        Linksd                 Visits: 85396577 AMS now reading: 1 search: by author by theme by key word Year 2005 No 3 Dobrovský Ľ., Řeháčková L., Dobrovská J., Stránský K., Dobrovská V. PREDICTION OF CARBON DISTRIBUTION IN WELDED JOINTS OF STEELS Keywords: Quasi-stationary diffusion|welded joints of steels|interstitial elements|carbon| No 3 (2005), p. 259-265   mag01.pdf (172 kB) mag01_eng.txt (2 kB)   Noga Z. LABORATORY PLASMA EQUIPMENT TO THE SEMI-CONTINUAL MATERIAL MELTING AND PROCESS Keywords: Development of research equipment|plasma torch|horizontal-vertical water cooled copper crucible|electric heating–treatment furnace|forming machines| No 3 (2005), p. 266-276   mag02.pdf (948 kB) mag02_eng.txt (3 kB)   Kocich R., Greger M. DEVELOPMENT OF STRUCTURE AND MECHANICAL PROPERTIES IN AZ91 ALLOY USING BY ARB PROCESS Abstract Accumulative rolling bonding (ARB) is a kind of severe plastic deformation process which can produce high strength metals with ultra fine (sub-micron) grained microstructure. Microstructure and mechanical properties of AZ91 alloy sheets manufactured by accumulative roll bonding (ARB) at temperature 360?C were investigated. Microstructure of rolled materials indicates formation of sub-grains inside the original grains, which show traces of deformation, which elongated them in direction of rolling. In the AZ91 sheet, the grain size was locally reduced down to 1 ?m by the ARB process and the strength increased up to 392 MPa, The strength of the AZ 91 alloy increased from 168 MPa (without deformation and after heat treatment) to 334 MPa after the 4 cycles, but during subsequent ARB processing it rose only very slightly. Experimentally was proved that the mean grain size after 5 cycles decreased from initial 120 ?m to 3,6 ?m. Typical twins, which were formed at plastic deformation in case of forging and conventional longitudinal rolling did not occur when ARB technology was used, which is probably caused by amount of deformation, which was the decisive factor already at the first pass, where it exceeded the value of 60%, while on the other hand at forging or rolling this amount of deformation was not higher than 30%. Keywords: Plastic deformation|grain size|magnesium alloy|mechanical properties| No 3 (2005), p. 277-283   mag03.pdf (735 kB) mag03_eng.txt (1 kB)   Szurman I., Kursa M. INFLUENCE OF CONDITIONS OF PREPARATION ON STRUCTURAL CHARACTERISTICS OF NI-TI ALLOYS Keywords: Ni-Ti shape memory alloys|plasma melting|vacuum induction melting| No 3 (2005), p. 284-292   mag04.pdf (539 kB) mag04_eng.txt (2 kB)   Smíšek V., Kursa M. POSSIBILITIES OF AFFECTING THE LAMELLAR MICROSTRUCTURE OF TI 46AL-5NB-1W ALLOY BY DIRECTIONAL CRYSTALLISATION Keywords: titanium aluminide|directional solidification|directional crystallisation|microstructure| No 3 (2005), p. 293-300   mag05.pdf (413 kB) mag05_eng.txt (1 kB)   Bujnošková K., Drápala J. SEGREGATION PHENOMENA IN REFRACTORY METALS DURING ZONE MELTING Keywords: Segregation|refractory metals|molybdenum|tungsten|segregation coefficient|concentration undercooling|convection| No 3 (2005), p. 301-310   mag06.pdf (308 kB) mag06_eng.txt (2 kB)   Bystrianský J., Siegl J., Haušid P., Strnadel B. THERMAL FATIGUE OF STAINLESS STEELS Keywords: Stainless steel|thermal shock|thermal fatigue|fatigue crack|thermal cycle| No 3 (2005), p. 311-322   mag07.pdf (2 MB) mag07_eng.txt (2 kB)   Bystrianský J., Siegl J., Haušid P., Strnadel B. THERMAL FATIGUE OF STAINLESS STEELS Keywords: Stainless steel|thermal shock|thermal fatigue|fatigue crack|thermal cycle| No 3 (2005), p. 311-322   mag08.pdf (2 MB) mag08_eng.txt (2 kB)   Sojka J., Jonšta P., Rytířová L., Sozańska M., Jerôme M. INFLUENCE OF MICROSTRUCTURE ON SULPHIDE STRESS CRACKING OF HOT ROLLED TUBES Keywords: Sulphide stress cracking|carbon steel|segregation bands|hydrogen permeation| No 3 (2005), p. 332-330   mag09.pdf (865 kB) mag09_eng.txt (2 kB)   Schindler I., Fiala J., Černý L., Kohut J., Kozelský P., Suchánek P. DEFORMATION BEHAVIOR AND MICROSTRUCTURE DEVELOPMENT OF 13CR25 FERRITIC STAINLESS STEEL IN HOT STRIP ROLLING Keywords: High-alloy ferritic steel|hot strip rolling|simulation|recrystallization|recovery|grain size|mean equivalent stress| No 3 (2005), p. 331-340   mag10.pdf (1 MB) mag10_eng.txt (2 kB)   Fabík R., Kliber J. INVERSE ANALYSIS CALCULATION OF HEAT TRANSFER COEFFICIENT FOR FEM SIMULATION OF RAILS HARDENING Keywords: cooling curves|inverse analysis|FEM|heat transfer coefficient| No 3 (2005), p. 341-350   mag11.pdf (1 MB) mag11_eng.txt (2 kB)   Heger M. , Schindler I., Franz J., Špička I., Turoňová P., Černý L. POSSIBILITIES OF COMPUTER ANALYSIS EXPLOITATION IN THE PROCESS OF SOLUTION SOME TASKS CONNECTED WITH MATERIAL FORMING Keywords: Rolling|equivalent strain|strain rate|computer analysis| No 3 (2005), p. 351-361   mag12.pdf (1 MB) mag12_eng.txt (2 kB)   Kubina T., Schindler I., Heger M., Plura J., Bořuta J., Dänemark J., Hadasik E. STATISTICAL COMPARISON OF DIFFERENT METHODS OF CALCULATION OF PARAMETERS DESCRIBING DYNAMIC RECRYSTALLIZATION Keywords: Activation energy|hot forming|steel|dynamic recrystallization| No 3 (2005), p. 362-368   mag13.pdf (332 kB) mag13_eng.txt (1 kB)   Lasek S., Drápala J., Urbaníková Ž., Blahetová M. COMPARISON OF ELECTROCHEMICAL CORROSION PROPERTIES OF SELECTED LEAD-FREE SOLDERS Keywords: Tin alloys|lead-free solders|electrochemical corrosion|potentiodynamic polarization method| No 3 (2005), p. 369-374   mag14.pdf (220 kB) mag14_eng.txt (2 kB)   ... © 2005 AMS HF TU Košice ALL RIGHTS RESERVED ...