Results 51 to 60 of about 1,823 (196)

Improving Processes of Mechanized Pulsed Arc Welding of Low-Frequency Range Variation of Mode Parameters [PDF]

, 2016
A new technology of low-frequency modulation of the arc current in MAG and MIG welding is presented. The technology provides control of thermal and crystallization processes, stabilizes the time of formation and crystallization of the weld pool ...
Saraev, Yu. N., Solodsky, Sergey Anatolievich, Uljyanova, Olga Viktorovna   +2 more
core   +1 more source

One-step annealing optimizes strength-ductility tradeoff in pearlitic steel wires [PDF]

Materials Science and Engineering: A, 2019
Abstract In this paper, the mechanical properties of a cold-drawn wire ( e = 2.43 ) are modulated by simple annealing and the variation of its microstructure is characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and molecular dynamics (MD) simulation.
L. Xiang, L.W. Liang, Y.J. Wang, Y. Chen, H.Y. Wang, L.H. Dai   +5 more
openaire   +1 more source

Anchorage System Contribution to Post‐Tensioned Bridge Collapse

Engineering Reports, Volume 8, Issue 5, May 2026.
This paper presents an experimental investigation of a 1960s precast post‐tensioned girder bridge in Trstena, Slovakia, revealing severe corrosion and anchorage degradation that ultimately led to its collapse. The findings highlight critical vulnerabilities in obsolete anchorage systems and emphasize the need for proactive assessment and maintenance of
Petra Bujnakova, Jakub Kralovanec, Martin Moravcik, Frantisek Bahleda   +3 more
wiley   +1 more source

Influence of coiling on the stress relaxation of prestressing steel wires [PDF]

, 2011
The possible deleterious effects of coiling and long-term storage of coiled wires on the stress relaxation behaviour of prestressing steel wires has been checked by means of experimental work and a simple analytical model.
Atienza Riera, José Miguel, Cendón Franco, David Ángel, Elices Calafat, Manuel, Gálvez Ruiz, Jaime, Suárez Guerra, Fernando   +4 more
core   +3 more sources

Linking Heat Treatment to Plastic Deformation in Pearlitic Steels Through Mesoscale Modeling

Advanced Engineering Materials, Volume 27, Issue 21, November 2025.
Surface wear on rail and wheel steels results from surface deformation during use. This research uses mathematical models to forecast the plastic behavior of pearlitic steels, connected to the microstructure formed during heat treatment. While the cooling rate impacts the steels’ strength, the size of prior austenite grains and blocks does not ...
Saham Sadat Sharifi, Hamed Davoodi Jooneghani, Maria Domankova, Klaus Six, Gerald Trummer, Maria Cecilia Poletti   +5 more
wiley   +1 more source

INFLUENCE OF DEFORMATION IN THE LINE OF WIRE MILL 150 ON DISPERSION OF PEARLITE OF STEEL 80K

Литьë и металлургия, 2014
Peculiarities of formation and distribution of pearlitic structure of steel 80K in a blank and after deformation in various areas of wire mill (in semi-finished rolled products and rolled wire) are established.
V. A. Lutsenko, P. A. Bobkov, O. V. Lutsenko, T. N. Golubenko, V. V. Gordiyenko   +4 more
doaj  

Microstructural Evolution, Performance, and Triboelectric Response of Cu–Fe Composites Processed via Deformation‐Driven Metallurgy

Engineering Reports, Volume 7, Issue 10, October 2025.
Microhardness reached a maximum of 158.5 ± 3.9 HV at 4 wt.% Fe, with tensile strength peaking at 331.9 ± 9.9 MPa, whereas higher Fe addition (6 wt.%) caused microhardness and tensile strength to decline to 142.4 ± 4.8 HV and 294.7 ± 9.2 MPa, respectively, due to particle clustering and thermal softening.
Zahra Sakhaei, Hamed Jamshidi Aval, Roohollah Jamaati   +2 more
wiley   +1 more source

Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.
ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England, Yevgen Gorash, Athanasios Toumpis   +2 more
wiley   +1 more source

Non-Destructive Investigation of Microstructural Transformations and Mechanical Hardening by Electromagnetic Techniques in Cold-Rolled Ferritic-Pearlitic Steel Wire of Flexible Pipelines [PDF]

Materials Research
Offshore oil and gas exploration in deep areas raises the need to develop equipment monitoring techniques to detect possible defects and prevent catastrophic failures.
Samille Kricia B. de Lima, Juan Manuel Pardal, Leosdan Figueredo Noris, Rodrigo de Carvalho P. Loureiro, Hamilton Ferreira G. de Abreu   +4 more
doaj   +1 more source

Comparative Fatigue Analysis of Structural Steels Considering Welding and Surface Effects

Strain, Volume 61, Issue 2, April 2025.
ABSTRACT There are limited data on the very high‐cycle fatigue for structural steel welds for over 10 million cycles. The purpose of this research is a fatigue performance comparison of the welds made of steels S355JR+AR and S275JR+AR. The goal of reaching the gigacycle fatigue domain is achieved using the ultrasonic fatigue testing at 20 kHz.
Yevgen Gorash, Tugrul Comlekci, Carl Walker, Athanasios Toumpis, James Kelly, Andrew England, Lewis Milne   +6 more
wiley   +1 more source