Characterization of beryllium foil produced by hot rolling

Wittenauer, Jerry; Nieh, T.G.; Waychunas, Glenn A.

doi:10.1007/bf00540685

Cited by 8 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different methods have been tried to improve the toughness of tungsten [5][6][7][8], which also requires a balance of strength and ductility. For instance, dopants such as potassium are used to increase the recrystallization temperature of the tungsten [8].…”

Section: Introductionmentioning

confidence: 99%

Temperature and deformation effect on the low and high angle grain boundary structure of a double forged pure tungsten

Sheng

Sun

Uytdenhouwen

et al. 2015

International Journal of Refractory Metals and Hard Materials

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Temperature and deformation effect on the low and high angle grain boundary structure of a double forged pure tungsten

Sheng

Sun

Uytdenhouwen

et al. 2015

International Journal of Refractory Metals and Hard Materials

View full text Add to dashboard Cite

“…In case of liquid phase sintering, a liquid phase coexists with solid particles of tungsten at the sintering temperature. The existence of liquid phase at the sintering temperature greatly enhances the rate of diffusion between contacted particles and thereby increases the interparticle bonding and densification rate during sintering [22][23][24]. The driving force for sintering is provided by a reduction in the surface energy.…”

Section: Contiguity Of Tungsten-based Alloys Vs Tungsten Contentmentioning

confidence: 99%

Liquid-Phase Sintering of Tungsten Heavy Alloys

Moustafa

Kaitbay

Abdo³

2010

DDF

View full text Add to dashboard Cite

Elemental powders of tungsten, nickel, iron and cobalt of compositions corresponding to (W-3.2Ni-0.8%Fe), (W-3.5Ni-1.5%Fe), and (W-4.5Ni-1.0Fe-1.5%Co) were mechanically alloyed in a tumbler rod mill for 2 hrs. Mechanically alloyed powders were liquid phase sintered at 1500oC for 90 min in vacuum. The sintered materials were heated up to 1150-1200oC in vacuum atmosphere, followed by quenching in water to suppress the impurity segregated at grain boundary. The sintered materials were subjected to cold-working by swaging from 8-30% reduction in area. The swaged specimens were age-hardened at 700oC. Full characterization for both the elemental powders and the sintered tungsten alloys were performed using optical microscopy, SEM analysis, EDS quantitative analysis, X-ray diffraction, hardness and compression testing. This paper will discuss the effects of the elemental powders characterization and the liquid phase sintering parameters on the microstructure and strength of these three tungsten heavy alloys.

show abstract

“…Beryllium foils can be manufactured by hot and warm rolling [5][6][7]. However, hot-rolled foils reveal brittle behavior and insufficient ductility at room temperature [5].…”

Section: Introductionmentioning

confidence: 99%

Strain and Friction Effect on the Stress-Strain State in the Deformation Zone during Cold Rolling of Thin Beryllium and Aluminum Foils

Мишин

Shishov

Paromov

2019

KEM

View full text Add to dashboard Cite

The effect of strain and the friction on the stress-strain state in the deformation zone during cold rolling of thin beryllium and aluminum foils was investigated in this work. Calculations showed that material hardening has a significant influence on the contact pressure distribution along the contact arc. Although it, the distributions of hydrostatic stress and stress triaxiality are favorable for fracture prevention both beryllium and aluminum except narrow regions near the entrance and the exit of deformation zone for all considered cases (strain up to 40%, friction coefficient in range 0.03 – 0.3). The most favorable stress state is observed during cold rolling with a high friction coefficient (rolling without lubrication).

show abstract

Characterization of beryllium foil produced by hot rolling

Cited by 8 publications

References 8 publications

Temperature and deformation effect on the low and high angle grain boundary structure of a double forged pure tungsten

Temperature and deformation effect on the low and high angle grain boundary structure of a double forged pure tungsten

Liquid-Phase Sintering of Tungsten Heavy Alloys

Strain and Friction Effect on the Stress-Strain State in the Deformation Zone during Cold Rolling of Thin Beryllium and Aluminum Foils

Contact Info

Product

Resources

About