Tensile properties of baseline and advanced tungsten grades for fusion applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00506320" target="_blank" >RIV/61389021:_____/18:00506320 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0263436818301100?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0263436818301100?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijrmhm.2018.04.003" target="_blank" >10.1016/j.ijrmhm.2018.04.003</a>

Result language

angličtina

Original language name

Tensile properties of baseline and advanced tungsten grades for fusion applications

Original language description

This work aims to establish a mechanical reference database of tungsten materials that are currently under assessment of their susceptibility to neutron irradiation. To obtain the mechanical properties, we performed a set of parametric tests using mini-tensile sample geometry and fracture surface analysis. Six different types of tungsten-based materials were assessed: two commercial grades produced according to ITER specifications in Europe and China i.e., Plansee (IGP) and AT&M (CEFTR), and four perspective lab-scale grades. These are grades reinforced with particles of TiC, Y 2 O 3 , and ZrC (W1TiC, W2YO, and W0.5ZC, respectively) as well as fine grain structure W (FG). Tests were performed in the temperature range 150–600 °C, selected specifically to reveal the ductile to brittle transition temperature and mechanisms of full plastic deformation. Most of the materials showed onset of the ductile behavior at 300 °C, except FG and IGP (in transverse orientation) grades. High yield strength and ultimate tensile strength were recorded for CEFTR, W0.5ZC, and W1TiC at the maximum investigated temperature (600 °C), which can be considered as promising for performance in the high-temperature regime. The lowest threshold temperature for ductility was determined to be 200 °C registered for the W0.5ZC grade, CEFTR (in longitudinal orientation) grades, and IGP (in longitudinal orientation) grades, hence demonstrating its high potential for divertor applications.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

International Journal of Refractory Metals & Hard Materials

ISSN

0263-4368

e-ISSN

—

Volume of the periodical

75

Issue of the periodical within the volume

September

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

153-162

UT code for WoS article

000437362100021

EID of the result in the Scopus database

2-s2.0-85046082432