Results 41 to 50 of about 32,890 (275)

Casting techniques of cannonballs from the Akko 1 shipwreck: Archaeometallurgical investigation [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2013
Eleven cannonballs were found in the Akko 1 shipwreck; two of them, a 9-pdr and a 24-pdr, were retrieved and studied using archaeometallurgical methods. Findings are reported in the present work. The aim of this research was to study the manufacturing
Cvikel D., Mentovich E.D., Ashkenazi D., Kahanov Y.   +3 more
doaj   +1 more source

Microstructures and mechanical properties of pure tantalum processed by high-pressure torsion

, 2014
A body-centred cubic (BCC) structure metal, tantalum, was processed by high- pressure torsion (HPT) at room temperature with different numbers of rotations. The microstructural evolution was studied by electron backscatter diffraction (EBSD).
Huang, Yi, Langdon, Terence G., Maury, Nicolas, Zhang, Nian Xian   +3 more
core   +1 more source

Sum rules for X-ray magnetic circular dichroism spectra in strongly correlated ferromagnets [PDF]

, 2005
It is proven that the sum rules for X-ray magnetic dichroism (XMCD) spectra that are used to separate spin and orbital contributions to the magnetic moment are formally correct for an arbitrary strength of electron-electron interactions.
Ankudinov, Brewer, Carra, Chioncel, Ebert, Gambardella, Huang, Hubbard, Hubbard, Imada, Irkhin, Irkhin, Irkhin, Irkhin, Irkhin, Laan, Lichtenstein, M. I. Katsnelson, Nolting, Teramura, Thole, V. Yu. Irkhin, Vonsovsky, Wessely, Zubarev   +24 more
core   +3 more sources

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Production of arsenical bronze using speiss on the Elephantine Island (Aswan, Egypt) during the Middle Kingdom (Middle Bronze Age) (c.2000–1650 BCE)

Archaeometry, EarlyView.
Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
wiley   +1 more source

Dynamic Scenarios of the Formation of Martensite with the {110} Habits in the Ni50Mn50 Alloy [PDF]

, 2019
Martensitic transformation B2–L10 in the ordered alloy Ni50Mn50, which occurs at comparatively high temperatures (980–920 K), is discussed with the use of dynamic concepts of the wave control of the threshold deformation.
Belosludtseva, E. S., Chashchina, V. G., Kashchenko, M. P., Kashchenko, N. M., Pushin, V. G., Uksusnikov A. N.   +5 more
core  

Controlling the Microstructure of Arc Sprayed Shells [PDF]

, 1991
Techniques for controlling the microstructure of sprayed steel structures are discussed in this paper. Steel is arc sprayed onto shaped substrates to form tooling.
Fussell, P.S., Kirchner, H.O.K, Prinz, F.B., Weiss, L.E.   +3 more
core   +1 more source

An Archaeometallurgical Investigation on Some Archaeological Metal Finds From the Sasanian Site of Jahāngir, Western Iran

Archaeometry, EarlyView.
ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi, Leila Khosravi, Morteza Habibzadeh   +2 more
wiley   +1 more source

Overview: Machine Learning for Segmentation and Classification of Complex Steel Microstructures

Metals
The foundation of materials science and engineering is the establishment of process–microstructure–property links, which in turn form the basis for materials and process development and optimization.
Martin Müller, Marie Stiefel, Björn-Ivo Bachmann, Dominik Britz, Frank Mücklich   +4 more
doaj   +1 more source