Results 111 to 120 of about 32,890 (275)

Erosion/corrosion of turbine airfoil materials in the high-velocity effluent of a pressurized fluidized coal combustor [PDF]

open access: yes
Four candidate turbine airfoil superalloys were exposed to the effluent of a pressurized fluidized bed with a solids loading of 2 to 4 g/scm for up to 100 hours at two gas velocities, 150 and 270 m/sec, and two temperatures, 730 deg and 795 C.
Lowell, C. E.   +2 more
core   +1 more source

Development of uniform and predictable battery materials for nickel cadmium aerospace cells Quarterly report, 8 Aug. - 7 Nov. 1968 [PDF]

open access: yes
Sintering of carbonyl nickel powders for nickel cadmium batteries ...
Cattabriga, R. A.   +3 more
core   +1 more source

Superconductivity in zirconium-rhodium alloys [PDF]

open access: yes, 1969
Metallographic studies and transition temperature measurements were made with isothermally annealed and water-quenched zirconium-rhodium alloys. The results clarify both the solid-state phase relations at the Zr-rich end of the Zr-Rh alloy system and the
Zegler, S. T.
core   +1 more source

Service life of a pressure mould with heat-barrier and anti-erosion coating

open access: yesMetalurgija, 2014
The present paper deals with the issue of determination of the cause of wear of a thermally processed and nitrided pressure mould with (Ti, Al)(C, N) coating.
A. W. Orłowicz, M. Mróz, M. Tupaj
doaj  

High Velocity Oxidation and Hot Corrosion Resistance of Some ODS Alloys [PDF]

open access: yes
Several oxide dispersion strengthened (ODS) alloys were tested for cyclic, high velocity, oxidation, and hot corrosion resistance. These results were compared to the resistance of an advanced, NiCrAl coated superalloy.
Deadmore, D. L., Lowell, C. E.
core   +1 more source

Effects of surface chemistry on hot corrosion life [PDF]

open access: yes, 1984
Hot corrosion life prediction methodology based on a combination of laboratory test data and field service turbine components, which show evidence of hot corrosion, were examined.
Fryxell, R. E., Gupta, B. K.
core   +1 more source

The sword from Vlčí Pole

open access: yesArcheologické Rozhledy
Finds of early medieval Schlingen-type swords are mostly concentrated in present-day southern Germany, where they are known from a number of graves dating to the end of the late Merovingian period.
Jiří Košta   +3 more
doaj   +1 more source

Dynamic oxidation behavior at 1000 and 1100 C of four nickel-base cast alloys, NASA-TRW VIA, B-1900, 713C, and 738X [PDF]

open access: yes
The superalloys NASA-TRW VIA, B-1900, 713C, and 738X were tested cyclically and isothermally for resistance to oxidation in high velocity gas streams for 100 hours at specimen temperatures of 1000 C and 1100 C.
Sanders, W. A.
core   +1 more source

Investigation of the fracture mechanics of boride composites [PDF]

open access: yes
Processing studies designed to produce boride composites with metal additives to lower fabrication temperatures and increase the impact strength are reported.
Kaufman, L. A.
core   +1 more source

Effects of low-pressure air on oxygen contamination and lithium corrosion of a tantalum alloy, T-111, at 980 and 1260 C [PDF]

open access: yes
The effects were studied of low-pressure air on contamination and corrosion in the tantalum alloy T-111/lithium system at 980 and 1260 C. Capsules of T-111 containing lithium were exposed to six vacuum levels between 1 x 10 to the 8th power and 0.0003 ...
Gahn, R. F.
core   +1 more source

Home - About - Disclaimer - Privacy