Results 31 to 40 of about 34,463 (271)
The repair of foundry defects in steel castings using welding technology [PDF]
, 2018 Use of welding technology for the repair of steel castings is particularly common in two areas. These include weld surfacing of protrusions that remained incomplete after casting, or filling the surface defects (cavities).
Gucwa, Marek +4 more
core +1 more source
Teshugang, 2020 The microstructure and properties of the heat affected coarse grain zone of steel 07MnCrMoVR with post¬weld heat treated at 460 ~ 660 °C for 2 h are analyzed by means of optical microscope, scanning microscope, transmission electron microscope and impact
冯路路, 乔文玮, 鲁修宇, 周峰
doaj
Effect of Shortened Post Weld Heat Treatment on the Laser Welded AA7075 Alloy
Metals, 2022 The present study provides an overview of previous studies on the welding of the AA7075-T6 aluminum alloy, followed by an investigation of the influence of short-time solution annealing on the mechanical properties of the weld. Conventional laser welding
Timon Suckow +5 more
doaj +1 more source
Precipitate stability and recrystallisation in the weld nuggets of friction stir welded Al-Mg-Si and Al-Mg-Sc alloys [PDF]
, 2008 Two different precipitate hardening aluminium alloys processed by friction stir welding were investigated. The microstructure and the hardness of the as delivered materials were compared to that of the weld nugget.
A. Cabello Muñoz +31 more
core +5 more sources
Forces in Mechanics, 2022 To improve the mechanical properties in supermartensitic stainless steel weld deposits, suitable post weld heat treatments (PWHT) are required, since these properties are controlled by the resulting microstructure.
S. Zappa +3 more
doaj +1 more source
Post welding heat treatment improving mechanical properties on Ti-6Al-4V
Procedia Structural Integrity, 2020 Abstract Ti-6Al-4V can be easily welded by tungsten inert gas (TIG) welding process. However, the parent material properties tend to worsen because of microstructural changes and residual stresses. Post welding heat treatments (PWHT) are used to restore the mechanical properties of the joints. In this work, automotive components made out of Ti-6Al-4V
Ferro, Paolo +4 more
openaire +3 more sources
Review on the prediction of residual stress in welded steel components [PDF]
, 2020 Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd +2 more
core +1 more source
Characterization of weld fusion zone for TIG welded P91and P92 steels [PDF]
Archives of Metallurgy and Materials, 2018 The welding of nuclear grade P91 and P92 steel plate of thickness 5.2 mm were performed using the autogenous tungsten inert gas (TIG) welding process.
C. Pandey +4 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 The heat input is the most critical factor in pulsed Nd:YAG laser welding and affects the microstructure and mechanical behavior of the welded alloys. NiTi alloy has been used for various applications such as medical equipment and MEMS due to its unique ...
Ali Rasouli, Homam Naffakh-Moosavy
doaj +1 more source
Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steel [PDF]
, 2016 Multi-pass fusion welding by a filler material (wire) is normally carried out to join thick steel sections used in most engineering applications. Multiple thermal cycles from a multi-pass weld resulted in a variable distribution of residual stress field ...
Ganguly, Supriyo +3 more
core +2 more sources