ELECTRON BEAM WELDING OF TUNGSTEN AND ODS ALLOYS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU139876" target="_blank" >RIV/00216305:26210/17:PU139876 - 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

ELECTRON BEAM WELDING OF TUNGSTEN AND ODS ALLOYS

Popis výsledku v původním jazyce

The weldability of advanced heat resistant ODS metallic materials in combination with other materials is a prior requirement for their wider use in industry energy production. A special case is formed by the requirements of the International Thermonuclear Experimental Reactor (ITER) construction, where tungsten alloy needs to be incorporated in weld joint. Due to heating during conventional welding, the microstructure and properties of the resulting weld joints are affected and the joints often become the weakest point of the structure. The electron beam welding with its reduced heat affected zone size may be an answer in this as it is one of the few techniques able to melt tungsten. The presented article is focused on thorough metallographic evaluation of the structure of heterogeneous electron beam welds which combine stabilized tungsten alloy WL10 with MA956 ferritic ODS steel. EB welded joints were evaluated by light and analytical electron microscopy including EDS analyses in the as-welded. Mechanical properties were evaluated by microhardness profiles. Achieving an appropriate structure of such welds and correct welding parameters are crucial aspects for future successful application of similar joints.

Název v anglickém jazyce

ELECTRON BEAM WELDING OF TUNGSTEN AND ODS ALLOYS

Popis výsledku anglicky

The weldability of advanced heat resistant ODS metallic materials in combination with other materials is a prior requirement for their wider use in industry energy production. A special case is formed by the requirements of the International Thermonuclear Experimental Reactor (ITER) construction, where tungsten alloy needs to be incorporated in weld joint. Due to heating during conventional welding, the microstructure and properties of the resulting weld joints are affected and the joints often become the weakest point of the structure. The electron beam welding with its reduced heat affected zone size may be an answer in this as it is one of the few techniques able to melt tungsten. The presented article is focused on thorough metallographic evaluation of the structure of heterogeneous electron beam welds which combine stabilized tungsten alloy WL10 with MA956 ferritic ODS steel. EB welded joints were evaluated by light and analytical electron microscopy including EDS analyses in the as-welded. Mechanical properties were evaluated by microhardness profiles. Achieving an appropriate structure of such welds and correct welding parameters are crucial aspects for future successful application of similar joints.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2017: 26TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS

ISBN

978-80-87294-79-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

1746-1750

Název nakladatele

TANGER LTD,

Místo vydání

KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH RE

Místo konání akce

Brno

Datum konání akce

24. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000434346900281