Results 21 to 30 of about 23,345 (189)

Accuracy of Marginal and Internal Adaptation of Advanced Lithium Disilicate Crowns Using Different Margin Designs (In Vitro Study). [PDF]

open access: yesInt J Dent
Background Advanced lithium disilicate glass ceramics offer excellent esthetics, but conservative crown preparations are not always the preferred choice. Various margin designs are available; however, more conservative vertical preparations (vertipreps) have less scientific evidence supporting their esthetic outcomes compared to shoulder or chamfer ...
Mohamed HA, Azer A, AboElHassan RG.
europepmc   +2 more sources

The Olokun head reconsidered

open access: yesAfrique Archéologie Arts, 2013
The opportunity was taken in 2010 to carry out a full scientific and technical examination of the brass head from Ife, popularly known as the Olokun head, first published in 1912 by Leo Frobenius, together with a selection of other Ife heads that came to
Paul T. Craddock   +6 more
doaj   +1 more source

Microstructure and Failure Processes of Reactor Pressure Vessel Austenitic Cladding

open access: yesMetals, 2021
This paper is dedicated to an experimental program focused on the evaluation of microstructure and failure mechanisms of WWER 440 type nuclear reactor pressure vessel cladding made from Sv 08Kh19N10G2B stainless steel.
Jan Štefan   +4 more
doaj   +1 more source

A super-ductile alloy for the die-casting of aluminium automotive body structural components [PDF]

open access: yes, 2014
Super-ductile die-cast aluminium alloys are critical to future light-weighting of automotive body structures. This paper introduces a die-cast aluminium alloy that can satisfy the requirements of these applications.
Fan, Z, Ji, S, Watson, D
core   +1 more source

Classification and Rating of Inclusions in Steel Using an Image Analysis Software

open access: yesHittite Journal of Science and Engineering, 2016
Inclusions play an important role in the performance of steel products. In this respect, they should be accurately characterized in steels. Developing computer technology and softwares have been allowed to evaluate the inclusion content of a steel ...
Oktay Elkoca
doaj   +1 more source

Clinching of High-Strength Steel Sheets with Local Preheating

open access: yesApplied Sciences, 2023
Clinching is a manufacturing method of mechanically joining two or more materials without the use of heat or additional components. This process relies on high plastic deformation to create a secure bond.
Miroslav Džupon   +5 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann   +4 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

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

open access: yes, 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.   +5 more
core  

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