Results 131 to 140 of about 4,894 (287)

Failure Investigation of Alloy 625 Sockolets After Prolonged Service in an Ammonia Cracker Unit

Materials and Corrosion, EarlyView.
The failure of the sockolets was caused by intergranular cracking and fracture. The thick and highly brittle nitrided layer formed intergranular surface cracks, which propagated along grain boundaries into the base alloy substrate due to the presence of brittle Cr‐rich carbides. ABSTRACT Several sockolets of Alloy 625 operating at 540°C in contact with
Kamlesh Chandra, N. Naveen Kumar, Niraj Kumar   +2 more
wiley   +1 more source

Evaluating Genetic Algorithms on welding sequence optimization with respect to dimensional variation and cycle time

, 2022
S.697-704Spot welding is the predominant joining method in car body assembly. Spot welding sequences have a significant influence on the dimensional variation of resulting assemblies and ultimately on overall product quality.
Segeborn, J., Carlson, J.S., Wärmefjord, K., Söderberg, R.   +3 more
core  

Experimental and Comparative Study of the Corrosion Behavior of Lean Duplex Stainless Steel in Seawater

Materials and Corrosion, EarlyView.
The localized corrosion behavior of lean duplex stainless steel EN 1.4062 is systematically compared with austenitic and higher‐alloyed duplex grades in natural seawater. A clear resistance ranking is established, highlighting EN 1.4062 as a cost‐effective alternative for limited marine exposure.
Mohammad Hassanzadeh, Nicolas Larché, Audrey Allion‐Maurer, Raf Dewil, Barbara Rossi   +4 more
wiley   +1 more source

Numerical Simulation to Investigate the Influence of Welding Sequences and Boundary Conditions on the Mechanical Behaviour of Gusset Joints

Polish Maritime Research
Welding is one of the most widely used joining processes for the fabrication of steel parts. Consequently, it is commonly used in the shipbuilding industry for the fabrication of structural T-stiffeners.
Caballero Eric, Ruiz Hector, Blandon Juan   +2 more
doaj   +1 more source

Effect of Welding Sequence on Deposition Geometry Control in GMAW Remanufacturing

, 2010
GMAW welding remanufacturing is the process to form part layer by layer, that it is typical nonlinear transient heat conduction. During remanufacturing, parts undergo heating time after time that the thermal cycle fluctuates acutely and the distribution ...
Sheng Zhu, Yuan Yuan Liang, Qi Wei Wang
core   +1 more source

Chromium Salt: A Review of Salt Formation, Hygroscopic Properties, and Impact on 316 L Corrosion in Hydrochloric Acid

Materials and Corrosion, EarlyView.
This article examines the impact of externally introduced chromium compounds on the localized corrosion of 316 L stainless steel in acidic chloride environments such as hydrochloric acid. While the corrosion resistance of 316 L relies on the formation of a chromium‐rich passive oxide layer, industrial conditions may expose the steel to various chromium
Florence Lequien
wiley   +1 more source

Experimental and numerical study of welding-induced deformation and residual stress in 6082 aluminum: Model validation and process design guidance

Materials & Design
This study presents an integrated numerical and experimental investigation into the effects of welding parameters on deformation and residual stress in butt-welded joints made of 6082 aluminum alloy.
Hamidreza Rohani Raftar, Amir Khodabakhshi, Juho Havia, Antti Ahola, Tuomas Skriko   +4 more
doaj   +1 more source

Thermomechanical Validation of an Additively Manufactured Test Chamber for Sustainable Aviation Fuel Atomization in Jet‐In‐Crossflow Conditions

Macromolecular Symposia, EarlyView.
ABSTRACT This study aims to validate the structural and thermomechanical reliability of an additively manufactured test chamber specifically designed for the experimental investigation of sustainable aviation fuel (SAF) atomization under jet‐in‐crossflow (JICF) conditions representative of gas turbine afterburners. The proposed test chamber is designed
Valerio Acanfora, Giancarlo Sorrentino, Giovanni Battista Ariemma, Raffaele Ragucci, Aniello Riccio   +4 more
wiley   +1 more source

Analytical Methodology Obtaining an Optimal Welding Sequence for Least Distortion of Welded Structure

Journal of the Korean Welding and Joining Society, 2013
Abstract Several methodologies analyzing welding distortions of large shell structures like ship blocks have been developed and utilized in shipyards for a long times ago. In general, one of objects of thermal distortion analysis is to find welding sequence making least-deformation without any suppliance, and it can be solved easily and rapidly by EP ...
openaire   +2 more sources

Strategies for Optimization of Spot Welding Sequence with Respect to Geometrical Variation in Sheet Metal Assemblies

, 2010
During the assembly process of sheet metal parts, a lot of factors affect the final geometrical quality. It is important to have knowledge about the characteristics of as many as possible of those factors, not only to be able to reduce their effect, but ...
Rikard So¨derberg, Wärmefjord, Kristina,, Wärmefjord, Kristina, Söderberg, Rikard, Lindkvist, Lars, Söderberg, Rikard,, Lindkvist, Lars,, W\ue4rmefjord, Kristina, S\uf6derberg, Rikard, Kristina Wa¨rmefjord, Lars Lindkvist   +10 more
core   +1 more source