"MAR-M-247; High temperature; Low cycle fatigue"@en . . "Brno" . "EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900\u00B0C" . . . . . . "Obrtl\u00EDk, Karel" . "2014-05-21+02:00"^^ . . "Hrb\u00E1\u010Dek, K." . "RIV/68081723:_____/14:00435004" . "EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900\u00B0C"@en . "\u0160kor\u00EDk, Viktor" . "I, P(EE2.3.30.0063)" . . "[032770D47EFF]" . "METAL 2014: 23rd International Conference on Metallurgy and Materials" . "978-80-87294-52-9" . . . "Polycrystalline nickel-base superalloy MAR-M247 is used for high temperature applications requiring excellent combination of fatigue properties, creep resistance and surface stability. These superior high temperature characteristics derive from the microstructure which habitually consists of face centred cubic matrix \u03B3 and precipitate \u03B3\u00B4 (L12 type ordered structure). In the present work, the high temperature low cycle fatigue behaviour of cast nickel-base superalloy MAR-M247 in as received condition and in hot isostatically pressed (HIP) condition was studied. The microstructure of the materials is characterized by dendritic grains, carbides and casting defects. Distribution and size of defects in both materials were studied. Isothermal low cycle fatigue (LCF) tests were performed on cylindrical specimens under total strain control at 900\u00B0C in air. Cyclic stress\u2013strain response and fatigue life of both materials were assessed. Beneficial effects of HIP process on cyclic stress-strain and fatigue life curves are discussed." . . . "RIV/68081723:_____/14:00435004!RIV15-AV0-68081723" . . . "\u0160ul\u00E1k, Ivo" . "Polycrystalline nickel-base superalloy MAR-M247 is used for high temperature applications requiring excellent combination of fatigue properties, creep resistance and surface stability. These superior high temperature characteristics derive from the microstructure which habitually consists of face centred cubic matrix \u03B3 and precipitate \u03B3\u00B4 (L12 type ordered structure). In the present work, the high temperature low cycle fatigue behaviour of cast nickel-base superalloy MAR-M247 in as received condition and in hot isostatically pressed (HIP) condition was studied. The microstructure of the materials is characterized by dendritic grains, carbides and casting defects. Distribution and size of defects in both materials were studied. Isothermal low cycle fatigue (LCF) tests were performed on cylindrical specimens under total strain control at 900\u00B0C in air. Cyclic stress\u2013strain response and fatigue life of both materials were assessed. Beneficial effects of HIP process on cyclic stress-strain and fatigue life curves are discussed."@en . . . "4"^^ . "6"^^ . "13330" . "3"^^ . "EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900\u00B0C" . "EFFECT OF HIP ON LOW CYCLE FATIGUE OF MAR-M247 AT 900\u00B0C"@en . . . "\u0160kor\u00EDk, Viktor" . "Ostrava" . "Tanger Ltd" .