Results 91 to 100 of about 23,345 (189)

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

Sintering of carbonyl nickel powders for nickel cadmium batteries ...
Cattabriga, R. A., Feng, H., Hurley, G. F., Parry, J. M.   +3 more
core   +1 more source

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

Metalurgija, 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  

Post test analysis of generant tank, part no. 9116270-H [PDF]

Hydrazine and gaseous nitrogen test evaluation of prototype spacecraft ...
Bayce, A. E., Martin, C. H., Muraca, R. F., Whittick, J. S.   +3 more
core   +1 more source

ART OF METALLOGRAPHY: POSSIBILITIES OF DARK-FIELD MICROSCOPY APPLICATION FOR COLORED OBJECTS STRUCTURE ANALYSIS

Литьë и металлургия, 2015
The application of the method of dark field microscopy for the study of colored objects of material technology was researched. The capability of corrosive damage analysis and determination of the thickness of the metal coating were demonstrated.
A. G. Anisovich, I. N. Rumiantsava
doaj  

The sword from Vlčí Pole

Archeologické 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, Jiří Hošek, Filip Krásný, Radek Novák   +3 more
doaj   +1 more source

INFLUENCE OF WOOTZ STEEL MICROSTRUCTURE TO FORGING

Perner’s Contacts
Cast (real) damascus steel (so-called “wootz”) is an ancient tool/weapon material. Due to relatively high carbon amounts, the wootz is hard to forge (or other hot-forming shaping). In some cases, the forging of wootz is impossible.
Pavel Švanda
doaj   +1 more source

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

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

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

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., Rowe, A. P., Zellars, G. R.   +2 more
core   +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]

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]

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