Results 11 to 20 of about 66,661 (295)

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

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

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

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

SIMULATED HEAT AFFECTED ZONE IN WELDED STAINLESS STEEL 304L

open access: yesActa Metallurgica Slovaca, 2019
This work is a contribution study of the heat-affected zone in the real welded joint of stainless steel 304L. This zone was compared to the heat-affected zone obtained by using a thermal cycle simulation of welding.
Soumia Hamza   +3 more
doaj   +1 more source

Heat-Affected Zone of Plasma of Laser Cut Materials [PDF]

open access: yesManufacturing Technology, 2014
Permanent evolution of new high-strength and difficult-to-machine materials as well as production of precise and shaped products have made the engineering practice to advance towards development of technologies to allow such materials to be machined without major difficulties.
Dana Stančeková   +3 more
openaire   +2 more sources

Assessment of the Heat Input Effect on the Distribution of Temperature Cycles in the HAZ of S460MC Welds in MAG Welding

open access: yesMetals, 2021
Temperature cycles generated during welding have a significant effect on the changes in the HAZ of welds, regardless of whether these are changes in structure or mechanical properties; however, it is problematic to obtain temperature cycles with ...
Jaromír Moravec   +3 more
doaj   +1 more source

Investigation of Micro Hardness, Cooling Rate and Microstructure of ATIG Welded samples of Al-SiC composite

open access: yesMATEC Web of Conferences, 2018
Activated TIG welding has been performed on Al – 8% SiC composite 5mm plate with various fluxes such as Al2O3, MnO2, CaO, MgO, SiO2 & TiO2, to study & analyze the Microstructure, Micro hardness and cooling rate.
Pichumani Sivachidambaram   +2 more
doaj   +1 more source

The technology of thermal welding of the circulation piping of NPPS containing the influence of ultrasound

open access: yesNuclear Energy and Technology, 2017
The authors propose a thermal welding technology with ultrasound treatment for NPP circulation pipe-lines. This technology can significantly increase the strength of welded connections by reducing residual stresses, grain size and welded joint degassing.
S.I. Minin, A.I. Trofimov, M.A. Trofimov
doaj   +1 more source

Heat affected zone in surfacing chromium ledeburitic steel [PDF]

open access: yesMetalurgija, 2010
Tools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG ...
M. Tonkovič Prijanovič, L. Kosec
doaj  

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