Results 81 to 90 of about 23,345 (189)

Quantification of Damage Progression in a Thermally Aged Duplex Stainless Steel

open access: yesMaterials Research, 2002
Ferrite of austeno-ferritic stainless steels maintained for a long time at temperatures in the range of 270 °C to 400 °C is embrittled like the known 475 °C embrittlement of ferritic stainless steels.
A. Hazarabedian, B. Marini
doaj   +1 more source

A brazing process for Cb-1Cr heat receiver tubes Final report [PDF]

open access: yes
Zirconium-based alloy brazing of internal fins of Cb-1Zr foil to Cb-1Zr heat receiver ...
Compton, W. A., Smeltzer, C. E.
core   +1 more source

Manufacturing, Microstructure, and Mechanics of 316L SS Biomaterials by Laser Powder Bed Fusion

open access: yesJournal of Functional Biomaterials
Laser powder bed fusion (LPBF) is an advanced additive manufacturing technology that is gaining increasing interest for biomedical implants because it can produce dense, patient-specific metallic components with controlled microstructures.
Zhizhou Zhang   +2 more
doaj   +1 more source

High gas velocity burner tests on silicon carbide and silicon nitride at 1200 C [PDF]

open access: yes
Specimens of silicon carbide and silicon nitride were exposed to a Mach one gas velocity burner simulating a turbine engine environment. Cyclic tests up to 100 hour duration were conducted at specimen temperatures of 1200 C.
Probst, H. B., Sanders, W. A.
core   +1 more source

Using size distributions for determining growth mechanisms of grain boundary precipitates [PDF]

open access: yes, 2010
In the past various single parameters such as the mean, mode or maximum of the precipitate size distribution have been used in experiments to determine growth mechanisms.
Northover, S. M.
core  

Thermomechanical testing techniques for high-temparature composites: TMF behavior of SiC(SCS-6)/Ti-15-3 [PDF]

open access: yes
Thermomechanical testing techniques recently developed for monolithic structural alloys were successfully extended to continuous fiber reinforced composite materials in plate form.
Bartolotta, Paul A.   +2 more
core   +1 more source

The perimeter of large planar Voronoi cells: a double-stranded random walk

open access: yes, 2005
Let $p\_n$ be the probability for a planar Poisson-Voronoi cell to have exactly $n$ sides. We construct the asymptotic expansion of $\log p\_n$ up to terms that vanish as $n\to\infty$.
Chiu S N   +14 more
core   +3 more sources

High temperature mechanical properties of a zirconium-modified, precipitation- strengthened nickel, 30 percent copper alloy [PDF]

open access: yes
A precipitation-strengthened Monel-type alloy has been developed through minor alloying additions of zirconium to a base Ni-30Cu alloy. The results of this exploratory study indicate that thermomechanical processing of a solution-treated Ni-30Cu-0.2Zr ...
Whittenberger, J. D.
core   +1 more source

Staroegyptské měděné a bronzové artefakty v Egyptském muzeu Lipské univerzity. Průběžná zpráva o projektu // Ancient Egyptian copper and bronze artefacts in the Egyptian Museum of Leipzig University. Preliminary report on the project [PDF]

open access: yesPražské Egyptologické Studie, 2018
This article presents a preliminary report on the first results of the interdisciplinary project Early copper metallurgy in Ancient Egypt- a case study of the material from Agyptisches Museum - Georg Steindorff - der Universitat Leipzig, in ...
Martin Odler   +5 more
doaj  

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

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