Results 111 to 120 of about 122,922 (297)

Strengthening rectangular beams with NSM steel bars and externally bonded GFRP

Master of ScienceDepartment of Civil EngineeringHayder A. RasheedThe technology of FRP strengthening has matured to a great extent. However, there is always room for performance improvements.
Wuertz, Augustine F.
core  

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

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

Advanced 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, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Study on Ultrasonic Rolling Enhancement of TC4 and Its Tribological Characteristics Under Seawater Lubrication

Lubricants
To enhance the abrasion resistance of TC4 titanium alloy and meet the demand for wear-resistant and corrosion-resistant friction pair materials for water-hydraulic components of marine equipment, the tribological properties of the material subsequent to ...
Shuaihui Wang, Xianshuai Ma, Donglin Li, Yong Tang, Feng Zhao, Yan Lu, Xiaoqiang Wang   +6 more
doaj   +1 more source

New technological potentialities of finish-strengthening by surface plastic deformation

, 2017
The paper reports the results of the strengthening simulation process. A new kinematics of deforming rollers ensuring a surface plastic deformation of shafts of low rigidity was considered.
Као Нго, Semen Zaides, Семен Зайдес, Сao Ngo   +3 more
core   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

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, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Alternative technology of surface strengthening of internal surfaces of durable parts

Central Ukrainian Scientific Bulletin. Technical Sciences
Barrel survivability is the main indicator of tank guns. In order to ensure the competitiveness of Ukrainian armored vehicles on the foreign arms market, there was a need to ensure the survivability of the barrels of domestic tank guns at the level of the best world samples.
Boris Lyashenko, Larysa Lopata, Vitalii Lopata, Natalia Zaboykina   +3 more
openaire   +1 more source

Improvement of Surface Properties of 30CrNi2MoVA Steel with Ultrasonic Composite Strengthening Modification

The surface roughness, surface hardness, tensile properties and friction-wear properties were characterized, in comparison with those of the traditional turned cutting, electropulsing treatment (EP) and ultrasonic surface-rolling process (USRP) sample ...
Yinglin Ke, Changsheng Tan, Dan Liu, Hongsheng Huang, Huanbin Li, Qiang Xu   +5 more
core   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Optimization of technological parameters at discrete strengthening of steel cylindrical surfaces

Проблеми трибології
The technologies of continuous strengthening of technological surfaces have practically exhausted their capabilities, which calls for the creation of fundamentally new approaches.
O. Dykha, V. Dytyniuk, N. Hrypynska, A. Vychavka   +3 more
doaj   +1 more source