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DOI: 10.1016/j.ijrmhm.2018.04.003

Tensile properties of baseline and advanced tungsten grades for fusion applications

Yin, Chao; Terentyeva, Dmitry; Pardoen, Thomas; Bakaeva, Anastasiia; Petrov, Roumen; Antusch, Steffen; Rieth, Michael; Vilémová, Monika; Matějíček, Jiří; Zhang, Tao

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, Y2O3, 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 ... mehr

Zugehörige Institution(en) am KIT Fakultät für Maschinenbau (MACH)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 0263-4368, 0958-0611
KITopen ID: 1000082585
HGF-Programm 31.03.09; LK 01
Erschienen in International journal of refractory metals & hard materials
Band 75
Seiten 153-162
Schlagworte Tungsten Mechanical properties Uniform elongation Fusion
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