On the short time creep rupture

Pugh, J. W.

doi:10.1007/bf02648706

Cited by 34 publications

(7 citation statements)

References 10 publications

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“…Grain refining [28], work hardening [29], solid solution alloying [30,31], and dispersion strengthening [31] are known as conventional methods to improve the mechanical properties of W materials. The K-doping is one of the dispersion strengthening methods [32][33][34]. K-doped W contains nano bubbles filled with K, which are mainly dispersed at the grain boundaries [35].…”

Section: Hot-rolled Platesmentioning

confidence: 99%

A review of impact properties of tungsten materials

Nogami

Watanabe

Reiser

et al. 2018

Fusion Engineering and Design

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Section: Hot-rolled Platesmentioning

confidence: 99%

A review of impact properties of tungsten materials

Nogami

Watanabe

Reiser

et al. 2018

Fusion Engineering and Design

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“…These problems can be overcome by dispersion strengthening and precipitation hardening, Non-Sag tungsten [11,12] and W-ThO 2 (ODS-W) as examples. However, the radioactive nature of thorium has turned development efforts towards tungsten alloys strengthened by other metal oxides like La 2 O 3 , Y 2 O 3 , HfO 2 , ZrO 2 , CeO 2 [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Chemically produced nanostructured ODS–lanthanum oxide–tungsten composites sintered by spark plasma

Yar¹,

Wahlberg²,

Bergqvist³

et al. 2011

Journal of Nuclear Materials

143

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“…Doping with a small amount of Al, K, Si 1,2) or rare-earth oxides [3][4][5] resulted in development of high-ductility and highly creep-resistant Mo alloys. The origin of the improved mechanical properties in the doped-Mo alloys was related to an elongated coarsegrained microstructure induced by the additives.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Fine-Grained, Sintered Molybdenum Alloys with Dispersed Particles Developed by Mechanical Alloying

et al. 2004

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In order to develop Mo alloys with improved mechanical properties of low-temperature toughness and room-and high-temperature strengths without any plastic working after consolidation, fine-grained, particle-dispersed Mo alloys were fabricated by hot isostatic pressing (HIP) or spark plasma sintering (SPS) of mechanically alloyed powders of Mo and 0.8 mol% ZrC or TaC (designated as ZRC08 and TAC08). The fabricated Mo alloys were subjected to high-temperature annealing for 3.6 ks up to 2470 K, three-point impact bending tests at temperatures from 270 to 470 K at 5 m s À1 and static tensile tests at temperatures from 300 to 1970 K at initial strain rates from 4:2 Â 10 À5 to 8:3 Â 10 À2 s À1 . The fabricated alloys exhibited no significant grain growth even after annealing at 2470 K for 3.6 ks due to the pinning effect of the particles against grain boundary migration. The ductile-to-brittle transition temperatures (DBTT) assessed by impact bending were lower and the tensile strengths up to 1770 K were higher for the fabricated alloys than for recrystallized pure Mo. In particular, HIPed TAC08 was superior in lowtemperature toughness having the DBTT lower by 30-40 K than recrystallized Mo-La 2 O 3 (TEM) with an elongated coarse-grained microstructure. HIP-or SPS-treated ZRC08 was superior in room-and high-temperature strengths, respectively. Furthermore, HIPed ZRC08 showed a large elongation of 551% at 1770 K. These excellent mechanical properties of the fabricated Mo alloys were obtained for the first time in the as-consolidated state without subsequent plastic working, and are attributable to fine-grained microstructure and grain-boundary strengthening by the fine particles.

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On the short time creep rupture

Cited by 34 publications

References 10 publications

A review of impact properties of tungsten materials

A review of impact properties of tungsten materials

Chemically produced nanostructured ODS–lanthanum oxide–tungsten composites sintered by spark plasma

Mechanical Properties of Fine-Grained, Sintered Molybdenum Alloys with Dispersed Particles Developed by Mechanical Alloying

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