The Creep Characteristics of Model cast Ni-Cr-W-C alloys

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Creep Characteristics of Model cast Ni-Cr-W-C alloys

Popis výsledku v původním jazyce

In this paper the creep behaviour of two model cast Ni-Cr-W-C alloys (Alloys A and B) resistant to high-temperature oxidation with different contents of Cr, W, Zr and Fe was investigated. Uniaxial tensile creep tests were carried out at temperatures from1023 to 1273 K and at the applied tensile stresses ranged from 20 to 250 MPa. Creep tests were followed by microstructural investigations by means of both transmission and scanning electron microscopy. A comparison between the creep characteristics of these model alloys under comparable creep loading conditions shows that the alloy B with higher content of tungsten and zirconium is more creep resistant as that of the Alloy A at lower temperatures. Possible reason for the different consequence of strengthening effects is discussed. However, the creep-rate controlling dislocation mechanism is most probably the same in both alloys.

Název v anglickém jazyce

The Creep Characteristics of Model cast Ni-Cr-W-C alloys

Popis výsledku anglicky

In this paper the creep behaviour of two model cast Ni-Cr-W-C alloys (Alloys A and B) resistant to high-temperature oxidation with different contents of Cr, W, Zr and Fe was investigated. Uniaxial tensile creep tests were carried out at temperatures from1023 to 1273 K and at the applied tensile stresses ranged from 20 to 250 MPa. Creep tests were followed by microstructural investigations by means of both transmission and scanning electron microscopy. A comparison between the creep characteristics of these model alloys under comparable creep loading conditions shows that the alloy B with higher content of tungsten and zirconium is more creep resistant as that of the Alloy A at lower temperatures. Possible reason for the different consequence of strengthening effects is discussed. However, the creep-rate controlling dislocation mechanism is most probably the same in both alloys.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Creep and Fracture of Engineering Materials and Structure

ISBN

978-4-88903-407-3

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

57-60

Název nakladatele

The Japan Institute of Metals

Místo vydání

Sendai

Místo konání akce

Kyoto

Datum konání akce

27. 5. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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