Results 31 to 40 of about 706,935 (403)

Tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr with gradient structure

open access: yesMaterials & Design, 2020
We investigated the tensile and superelastic behaviors of Ti-35Nb-2Ta-3Zr processed by double-faced friction stir processing that results in a roughly 2 times higher yield strength with an elongation of 37%.
Liqiang Wang   +8 more
doaj   +1 more source

Numerical study of the plastic behaviour in tension of welds in high strength steels [PDF]

open access: yes, 2004
The influence of the mismatch between material properties and constraint on the plastic deformation behaviour of the heat affected zone of welds in high strength steels is investigated in this study, using finite element simulations.
Fernandes, J. V.   +3 more
core   +1 more source

Contribution to the study of toughness in creep resistant steel welded joint [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy
Steel P91 is widely used in power stations due to its goоd creep resistance and predictable performance. The aim of this work was to compare the toughness values of different zones in the weld joint with a sample subjected to a simulated thermal cycle ...
Ahmed E.A.S.   +5 more
doaj   +1 more source

Optimization of Processing Parameters for Picosecond Laser Cutting of Carbon Fiber Reinforced Polymers [PDF]

open access: yesMATEC Web of Conferences, 2022
With the increasingly widespread use of carbon fiber reinforced polymer in aerospace and automotive fields, the problem of difficult processing of carbon fiber reinforced polymer has become more prominent. Although laser processing can achieve more ideal
Ren Xingfei, Fan Jinwei, Wang Peitong
doaj   +1 more source

Physical Nature of the Processes in Structure Forming, Phase and Chemical Composition of pipe Permanent Joints when MMA Welding [PDF]

open access: yes, 2016
The paper outlines peculiarities of structure formation, phase and chemical composition in regard to heat content in molten electrode metal beads when pipe steel (steel 09G2S) welding using power sources with various energy characteristics.
Chinakhov, Dmitriy Anatol'evich   +3 more
core   +1 more source

A microstructural evaluation of friction stir welded 7075 aluminum rolled plate heat treated to the semi-solid state [PDF]

open access: yes, 2018
Two rolled plates of 7075 aluminum alloy were used as starting material. The plates were welded using a simultaneous double-sided friction stir welding (FSW) process.
Azadi Chegeni, A., Kapranos, P.
core   +2 more sources

Fracture properties and crack tip constraint quantification of 321/690 dissimilar metal girth welded joints by using miniature SENB specimens

open access: yesNuclear Engineering and Technology, 2021
By using miniature SENB specimens, the fracture properties of the materials in the region of welded metal, 321 stainless steel heat affected zone, 690 alloy heat affected zone of 321/690 dissimilar metal girth welded joints were tested.
Bao Chen   +5 more
doaj   +1 more source

Numerical Verification of Tests on the Influence of the Imposed Thermal Cycles on the Structure and Properties of the S700MC Heat-Affected Zone

open access: yesMetals, 2020
The article presents the results of studies on the influence of simulated thermal cycles parameters on the structure and properties of the heat-affected zone (HAZ) of thermo-mechanically rolled S700MC steel.
T. Kik   +3 more
semanticscholar   +1 more source

Investigation on shearing strength of resistance spot-welded joints of dissimilar steel plates with varying welding current and time

open access: yesJournal of Materials Research and Technology, 2022
The present research investigated the effects of welding current and welding time on the shearing strength of resistance spot-welded joints of low carbon steel and stainless steel plates.
Lei Chen   +7 more
doaj   +1 more source

Effect of the morphology of the martensite-austenite phase on fracture of the weld heat affected zone in vanadium and niobium microalloyed steels [PDF]

open access: yes, 2010
In multipass welding, the intercritically reheated coarse grained heat affected zone demonstrates the worst toughness in welded joint, since it contains a high-carbon martensite with some retained austenite, known as M-A phase, which is brittle and ...
Baker, T.N., Li, Y.
core   +1 more source

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