Viscous Creep in Metallic Wires at Elevated Temperatures and Low Stresses.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F02%3A07023038" target="_blank" >RIV/68081723:_____/02:07023038 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Viscous Creep in Metallic Wires at Elevated Temperatures and Low Stresses.

Popis výsledku v původním jazyce

Viscous creep behaviour of several metals and alloys was investigated at the temperatures close to one half of the absolute melting point and very low stresses using the technique of helicoid specimens. Due to extremely high sensitivity the technique provides a unique tool for measurement of very low creep strains in acceptable time of the experiment. Helicoid spring specimens were made of wires of either circular or square cross section. The stress distribution along the wire radius (caused by shear stress loading) and threshold stresses were taken into account, as well as the influence of the surface layer loaded by maximum stress. The experimental results were interpreted as Coble diffusional creep and/or Harper-Dorn dislocation creep. Some data arein a very good agreement with Coble theory especially those obtained on some fine grained materials. This dependence is replaced by large data scatering for coarse grained materials. Some authors dispute the role or even the very existen

Název v anglickém jazyce

Viscous Creep in Metallic Wires at Elevated Temperatures and Low Stresses.

Popis výsledku anglicky

Viscous creep behaviour of several metals and alloys was investigated at the temperatures close to one half of the absolute melting point and very low stresses using the technique of helicoid specimens. Due to extremely high sensitivity the technique provides a unique tool for measurement of very low creep strains in acceptable time of the experiment. Helicoid spring specimens were made of wires of either circular or square cross section. The stress distribution along the wire radius (caused by shear stress loading) and threshold stresses were taken into account, as well as the influence of the surface layer loaded by maximum stress. The experimental results were interpreted as Coble diffusional creep and/or Harper-Dorn dislocation creep. Some data arein a very good agreement with Coble theory especially those obtained on some fine grained materials. This dependence is replaced by large data scatering for coarse grained materials. Some authors dispute the role or even the very existen

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/IAA2041101" target="_blank" >IAA2041101: Creep apriorně křehkých materiálů pro vysokoteplotní aplikace při velmi malých rychlostech deformace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název statě ve sborníku

Thin Films: Stresses and Mechanical Properties IX.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

"X1"-"X5"

Název nakladatele

Materials Research Society

Místo vydání

Warrendale

Místo konání akce

Boston [US]

Datum konání akce

26. 11. 2001

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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