Results 61 to 70 of about 114,205 (309)
Ultrasound effect on the mechanical properties of parts loaded by welding
Metalurgija, 2013 The reconditioning problem by loading parts through welding is a special one because with this operation is desired in addition to a recovery of the initial size of the piece and also an increasement of resistance to fatigue and wear by erosion and/or ...
Gh. Amza, D. Dobrotă
doaj
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Influence of Ultrasonic Cavitation on Botryococcus Braunii Growth
Archives of AcousticsThis study investigates ultrasonic energy’s impact on enhancing the growth of Botryococcus braunii (B. braunii) microalgae. Microalgae, known for their advantages in greenhouse gas mitigation and biomass conversion, were subjected to various stressors ...
Asleena SALAEH
doaj +1 more source
Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Sample preparation for atomic spectroscopy: evolution and future trends
Journal of the Brazilian Chemical Society, 2003 Sample preparation is the critical step of any analytical protocol, and involves steps from simple dilution to partial or total dissolution. The methods include dry or wet decomposition of the samples in open or closed systems, using thermal, ultrasonic ...
Oliveira Elisabeth de
doaj
The Application of Ultrasonic Energy into Liquid Mediums to Increase Effectiveness
, 1979 The use of high frequency or ultrasonic vibrations transmitted into and through a suitable medium can increase solution effectiveness. This means that in a continuous cleaning process, ultrasonic activation of the cleaning solution can increase ...
Goodman, M. A.
core
Thermal response of DP600 dual-phase steel under ultrasonic fatigue loading [PDF]
, 2016 The present work employed in situ infrared thermography to investigate the thermal response and dissipative mechanisms of a dual-phase steel under ultrasonic tension-compression fatigue testing. A classical thermal response occurred for stress amplitudes
RANC, Nicolas +5 more
core +1 more source
Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
Metalurgija, 2015 Plating by welding in an ultrasonic field represents a technological solution to increase resistance to corrosion and / or wear of pieces of the machinery industry.
Gh. Amza +4 more
doaj
Ultrasonic Welding of Thermoplastic Composites
Frontiers in Materials, 2019 Ultrasonic welding is a very fast and energy-efficient technique for the joining of thermoplastic composites. This article looks into main aspects of ultrasonic welding of continuous fiber-reinforced thermoplastic composites, namely energy directors ...
Irene Fernandez Villegas
doaj +1 more source