Results 11 to 20 of about 511,940 (310)

Hardening Embrittlement and Non-Hardening Embrittlement of Welding-Heat-Affected Zones in a Cr-Mo Low Alloy Steel

open access: yesMetals, 2018
The embrittlement of heat affected zones (HAZs) resulting from the welding of a P-doped 2.25Cr-1Mo steel was studied by the analysis of the fracture appearance transition temperatures (FATTs) of the HAZs simulated under a heat input of 45 kJ/cm with ...
Yu Zhao, Qing Ma, Shenhua Song
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

Experimental investigation on laser cutting of PMMA sheets: Effects of process factors on kerf characteristics

open access: yesJournal of Materials Research and Technology, 2021
This paper reports an experimental investigation on continuous CO2 laser cutting of polymethylmethacrylate (PMMA) sheet. The influence of four process factors (laser power, cutting speed, assisting gas pressure and sheet thickness) on five process ...
Ahmed B. Khoshaim   +4 more
doaj   +1 more source

Change of mechanical properties in substrate during rewelding deposit

open access: yesResearch in Agricultural Engineering, 2011
A study was carried out to examine the influence of rewelding deposit of structural low carbon steel and also the changes which occur in heat-affected zone and subcritical zone during rewelding.
R. Chotěborský, P. Hrabě, A. Kabutey
doaj   +1 more source

Optimising the laser-welded butt-joints of medium carbon steel using RSM [PDF]

open access: yes, 2005
The optimization capabilities in design-expert software were used to optimise the keyhole parameters (i.e. maximize penetration (P) and minimise the heat input, width of welded zone, (W) and width of heat affected zone (WHAZ)) in CW CO2 laser butt ...
Benyounis, Khaled   +2 more
core   +1 more source

A Demonstration Of Heat Affected Zone From Welding [PDF]

open access: yes2005 Annual Conference Proceedings, 2020
Comment: 9 ...
David Johnson   +2 more
openaire   +2 more sources

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

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

Influence of Post-Welding Heat Treatment on the Corrosion Behavior of a 2050-T3 Aluminum-Copper-Lithium Alloy Friction Stir Welding Joint [PDF]

open access: yes, 2011
The corrosion behavior of a Friction Stir Welding joint in 2050-T3 Al-Cu-Li alloy was studied in 1 M NaCl solution and the influence of T8 post-welding heat treatment on its corrosion susceptibility was analyzed.
Cassada   +10 more
core   +2 more sources

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

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