Results 61 to 70 of about 10,092 (225)
Influence of the Addition of Strontium on Eutectic Aluminium Alloys
This paper studies the effect of strontium on eutectic aluminium alloy (LM6) and its mechanical properties, with the aim of impacting high strength and ductility. Four alloy samples of LM6 with varying amounts (0%–0.1%) of strontium were cast. Universal tensile and Micro Vickers hardness testing machines were used to determine the alloy’s mechanical ...
Adebayo Felix Owa +3 more
wiley +1 more source
Extraction of Chromium from Carbon Ferrochromium Residual Wastes [PDF]
This work reports the problem of processing residual wastes after producing carbon ferrochrome by recycling dust using a hydrometallurgical method with the purpose of extracting the basic component - chromium.
P P Lazarevskiy +13 more
core +2 more sources
The influence of casting position and depth of concrete pour on bond strength
Abstract Bond strength of steel bars cast near the top of a concrete pour may be lower than that of bars cast close to the bottom due to an increase in water content, to consolidation of fluid concrete below the bar, or to both. Current design codes typically require increases of 20%–40% in anchorage and lap lengths in “poor” bond conditions to allow ...
Benny Suryanto +3 more
wiley +1 more source
Abstract Long‐term tephrostratigraphies of volcanic islands such as the Azores are often limited to young and incomplete subaerial records. Here, we present a Pleistocene‐Holocene marine tephra archive around the eastern islands of the Azores based on 22 marine gravity cores.
J. C. Schindlbeck‐Belo +8 more
wiley +1 more source
Effect of nonmetallic inclusions on steel welds metal hot cracking
Intercrystally distributed nonmetallic inclusions greatly increase weld susceptibility to hot cracking. Oxide and sulphide inclusions are the result of contaminated base material or its highly oxidised surfaces and they can be a consequence of ...
B. Zorc +6 more
doaj
Underwater Wet Repair Welding of API 5L X65M Pipeline Steel
This paper presents results of the research of effect of polymer insulation of pipeline made of API 5L X65M steel as well as underwater wet welding parameters on properties of joints made by covered electrodes.
Rogalski Grzegorz +2 more
doaj +1 more source
ABSTRACT We describe engineering geological characteristics and failure mechanisms of shallow soil landslides activated on Maungakiekie/One Tree Hill in central Auckland, New Zealand on 27 January 2023. The hill is a scoria cone in the young Auckland Volcanic Field (AVF), and formed ∼60 ka BP.
Gabriel Abazu +4 more
wiley +1 more source
Computational Thermodynamics and Kinetics in Materials Modelling and Simulations [PDF]
Over the past two decades, Computational Thermodynamics and Kinetics have been tremendously contributed to materials modeling and simulations and the demands on quantitative conceptual design and processing of various advanced materials arisen from ...
Agren, John +6 more
core +2 more sources
The submerged arc welding (SAW) process is complex because multi-phase reactions occur simultaneously across a large temperature interval from 2500 °C in the arc cavity, down to the weld pool liquidus temperare at the slag-weld pool interface.
Theresa Coetsee +1 more
doaj +1 more source
Transforming submerged-arc welding slags into magnetic glass-ceramics
AbstractSubmerged-arc welding slag (SAWS) and rice husk (RH) wastes represent two particularly abundant metallurgical and agricultural wastes. This work focusses on the feasibility of SAWS, together with glass cullet and RHs, to develop lightweight porous glass–ceramics that could be useful for technical purposes. Effects of temperatures and amounts of
A. A. Francis, M. K. Abdel Rahman
openaire +1 more source

