Results 61 to 70 of about 362,174 (286)

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May   +9 more
wiley   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

σ-phase precipitation in weld metal of austenitic stainless steels and its effect on properties

open access: yesHanjie xuebao
Low-temperature conditions necessitate high toughness in the welded joints of austenitic stainless steel structures. However, the impact toughness of the weld metal decreases significantly when using electrodes developed for SMAW under such conditions ...
Xuegang ZHANG   +6 more
doaj   +1 more source

Interplay between Loewner and Dirichlet energies via conformal welding and flow-lines

open access: yes, 2020
The Loewner energy of a Jordan curve is the Dirichlet energy of its Loewner driving term. It is finite if and only if the curve is a Weil-Petersson quasicircle.
Viklund, Fredrik, Wang, Yilin
core   +1 more source

Control of welding residual stress for dissimilar laser welded materials [PDF]

open access: yes, 2008
The most common problem of welding dissimilar metals (DMWs) with respect to residual stresses is the differences in the coefficient of thermal expansion and heat conductivity of the two welded metals.
A.G. Olabi   +15 more
core   +1 more source

Rapid Sintering of Porous Organic Polymer Powders Into Mechanically Strong Monoliths for Efficient CO2 Capture

open access: yesAdvanced Functional Materials, EarlyView.
Spark plasma sintering enables rapid processing of porous organic polymer (POP) from fine powders to a freestanding and mechanically robust monolith. The sintering process retains the CO2 adsorption capacity and CO2/N2 selectivity, making the monolith more suitable as a solid sorbent for practical carbon capture applications.
Duan Li   +4 more
wiley   +1 more source

Effect of tempering treatment on microstructure and properties of supermartensitic stainless steel deposited metal

open access: yesHanjie xuebao
The welding of large-scale impluse turbine runners is a significant engineering challenge that needs urgent resolution in China. This presents elevated demands for the impact performance of supermartensitic stainless steel welding materials.
Shuaijie JIAO   +6 more
doaj   +1 more source

Influence of Cu Content on Microstructure and Corrosion Behavior of Flux-Cored Arc-Welded Metal with 10CrNi3MoV Steel

open access: yesInternational Journal of Electrochemical Science, 2019
This study aimed to investigate the effects of Cu addition on the properties of the 10CrNi3MoV steel weld metals prepared in the laboratory according to the flux-cored arc welding (FCAW) method.
Jianglong Yi   +5 more
doaj   +1 more source

Closed circuit TV system automatically guides welding arc [PDF]

open access: yes, 1968
Closed circuit television /CCTV/ system automatically guides a welding torch to position the welding arc accurately along weld seams.
Stephans, D. L., Wall, W. A., Jr.
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

Home - About - Disclaimer - Privacy