Results 41 to 50 of about 1,433 (216)

Microstructure and mechanical properties in dissimilar friction stir welded AA2024/7075 joints at high heat input: effect of post-weld heat treatment

open access: yesJournal of Materials Research and Technology, 2020
In this research, dissimilar AA2024-T351 to AA7075-T651 joints manufactured at high heat input by friction stir welding has been studied to analyze the microstructure and mechanical properties by employing post-weld heat treatment (PWHT, solution and ...
Chenghang Zhang   +4 more
doaj   +1 more source

Semi in-situ local structure observation during PWHT of Cr–Mo weldments extent of the PWHT on local structure changes in heat affected zone microstructure

open access: yesJournal of Materials Research and Technology, 2021
Soft zone formation in dissimilar Cr–Mo welding occurs during post weld heat treatment that could compromise the integrity of the weldment. The decomposition of martensite could cause this formation at the weld heat affected zone adjacent to the fusion boundary. There could not yet determine the actual width of this zone.
I. Phung-on, C. Saiyasombat
openaire   +2 more sources

Perbandingan PWHT dan Non PWHT pada Pengelasan Material SA-213 Grade T91 dengan SA-213 Grade T22 terhadap Struktur Mikro dan Kekerasan

open access: yes, 2023
Superheater adalah salah satu komponen boiler yang berfungsi untuk memanaskan uap jenuh yang keluar dari steam drum, material yang sering digunakan pada superheater adalah SA-213 grade T91 dan SA-213 grade T22, pada penelitian ini menggunakan proses ...
Kurniyanto, Hendri Budi   +5 more
core  

Welding Cylinder Head: The Effect of Filler Variations and Post Weld Heat Treatment (PWHT) on Microstructure and Mechanical Properties on TIG Welded Cast Iron FC 250 [PDF]

open access: yesMATEC Web of Conferences, 2019
Cylinder head made from grey cast iron, is one of critical engine part which work on high temperature and pressure. The condition which occurs continuously during engine operation causes wear which identified as a fretting failure.
Jatimurti Wikan   +3 more
doaj   +1 more source

Effect of PWHT on the dissolution of δ-ferrite in the welded joint of 12Cr–1Mo steels for steam turbines

open access: yesJournal of Materials Research and Technology, 2021
In this research work, the optimal parameters of post welding heat treatment (PWHT) for 12Cr–1Mo Steel in the welding condition are determined. The PWHT aims to decrease δ-ferrite percentage in the interface of the heat-affected zone (HAZ) and partially ...
N. Alcantar-Mondragón   +4 more
doaj   +1 more source

PENGARUH PWHT TERHADAP SIFAT MEKANIK BAJA HASIL PROSES MMAW DENGAN AWS A.51 E 7018/6013

open access: yes, 2018
Penelitian ini bertujuan untuk mengetahui pengaruh PWHT terhadap sifat mekanik baja karbon rendah yang menyangkut kekuatan tarik, serta nilai kekerasan. Prosedur penelitian ini di awali dengan mengelas spesimen dengan MMAW.
Marsulan, Duti   +3 more
core   +1 more source

Influence of heat treatments on microstructure, mechanical properties and corrosion resistance of Inconel 625 overlay cladded using PTIG

open access: yesMaterials Research Express, 2020
The influence of post-weld heat treatment (PWHT) temperatures on the microstructure, mechanical properties and corrosion resistance of Inconel 625 overlay cladded using pulsed tungsten insert gas (PTIG) was studied.
Longlong Guo   +5 more
doaj   +1 more source

Quantification of CTOD fracture toughness in welded joints to evaluate the efficacy of vibration stress relief compared to thermal stress relief [PDF]

open access: yesMaterials Research, 2020
Resonant vibration residual stress relief (R-VSR) is an alternative method to post-weld heat treatments (PWHT) which is said to lead to less distortion and lower costs.
Amauri Gomes de Moraes   +2 more
doaj   +1 more source

Effect of post-weld heat treatment on the microstructure and mechanical properties of SSFSW HVDC AlSiMgMnCu alloy

open access: yesJournal of Materials Research and Technology, 2022
The high vacuum die casting (HVDC) AlSiMgMnCu alloy sheets were successfully welded by stationary shoulder friction stir welding (SSFSW) technique, and a post-weld heat treatment (PWHT) was also performed to enhance the mechanical properties of the ...
Fei Liu, Haidong Zhao, Zeqing Xu
doaj   +1 more source

Effect of post-weld heat treatment on microstructure, hardness and low-temperature impact toughness of electron beam welds of NIFS-HEAT-2 and CEA-J57 heats of V–4Ti–4Cr alloy

open access: yesNuclear Materials and Energy, 2016
Bead-on-plate electron beam welding in high vacuum atmosphere was applied to the plates of NIFS-HEAT-2 and CEA-J57 heats of V–4Ti–4Cr alloy. Effect of post-weld heat treatment (PWHT) in the temperature range 673–1273K on the hardness, impact toughness at
V. Tsisar   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy