Results 81 to 90 of about 14,168 (256)

Microstructural Classification of Bainitic Subclasses in Low-Carbon Multi-Phase Steels Using Machine Learning Techniques

Metals, 2021
With its excellent property combinations and ability to specifically adjust tailor-made microstructures, steel is still the world’s most important engineering and construction material. To fulfill ever-increasing demands and tighter tolerances in today’s
Martin Müller, Dominik Britz, Thorsten Staudt, Frank Mücklich   +3 more
doaj   +1 more source

Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.
ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England, Yevgen Gorash, Athanasios Toumpis   +2 more
wiley   +1 more source

Comparative Fatigue Analysis of Structural Steels Considering Welding and Surface Effects

Strain, Volume 61, Issue 2, April 2025.
ABSTRACT There are limited data on the very high‐cycle fatigue for structural steel welds for over 10 million cycles. The purpose of this research is a fatigue performance comparison of the welds made of steels S355JR+AR and S275JR+AR. The goal of reaching the gigacycle fatigue domain is achieved using the ultrasonic fatigue testing at 20 kHz.
Yevgen Gorash, Tugrul Comlekci, Carl Walker, Athanasios Toumpis, James Kelly, Andrew England, Lewis Milne   +6 more
wiley   +1 more source

Deformation of inclusions in rail steel due to rolling contact [PDF]

, 2012
Rolling contact fatigue (RCF) is a significant problem in the rail industry as it causes rapid and difficult to detect cracks. Inclusions present in the material can have an adverse effect on the RCF life of rails.
Chard, Alison Elizabeth
core  

Transformation diagrams of selected steel grades with consideration of deformation effect [PDF]

, 2018
The aim of this article was to assess the effect of previous plastic deformation on the transformation kinetics of selected steels with a wide range of chemical composition.
Kawulok, Petr, Kawulok, Rostislav, Mališ, Michael, Mizera, Jarosław, Opěla, Petr, Podolinský, Petr, Rusz, Stanislav, Schindler, Ivo, Čmiel, Karel Milan   +8 more
core   +1 more source

Slow Bainite: an Opportunity to Determine the Carbon Content of the Bainitic Ferrite during Growth

Solid State Phenomena, 2011
The amount of carbon in solid solution in bainitic ferrite at the early stage of transformation has been directly determined by atom probe tomography at 200 °C, taking advantage of the extremely slow transformation kinetics of a novel nanocrystalline steel.
Francisca G. Caballero, Michael K. Miller, Carlos Garcia-Mateo   +2 more
openaire   +3 more sources

The role of physical metallurgical relationships in enhancing alloy properties prediction and design: A case study on Q&P steel

Materials Genome Engineering Advances, Volume 3, Issue 1, March 2025.
This work presents a novel framework that combines physical metallurgical knowledge graphs with graph neural networks and genetic algorithms for dual‐objective optimization. It improves the accuracy of predicting the tensile properties of quench and partitioning steels compared to traditional AI models, and the designed alloys have been shown to be in ...
Yong Li, Hua Li, Chenchong Wang, Pedro Eduardo Jose Rivera‐Diaz‐del‐Castillo   +3 more
wiley   +1 more source

Transformation kinetics of carbide-free bainitic steels during isothermal holding above and below MS

Journal of Materials Research and Technology, 2020
The transformation kinetics of a low carbon bainitic steel was investigated using in situ confocal microscopy and dilatometry for isothermal treatments above and below the martensite start (MS) temperature.
Junyu Tian, Dr., Guang Xu, Dr., Haijiang Hu, Dr., Xiang Wang, Dr., Hatem Zurob, Dr.   +4 more
doaj  

The Effect of Ni on the Formation of Bainite in Fe-Ni Lateritic Steels through Semi-continuous Cooling Method

International Journal of Technology, 2020
The formation of bainite in steel alloys is affected not only by temperature, holding time, and cooling method but also by steel alloy’s main alloying element. In iron-nickel (Fe-Ni) lateritic steels, the steelmaking process from nickel pig iron (NPI)
Fatayalkadri Citrawati, Robby Dwiwandono, Leksono Firmansyah   +2 more
doaj   +1 more source

Comparison of Novel 1 GPa Low‐Carbon, Low‐Alloyed Steel Produced with Simulated and Laboratory‐Scale Thermomechanical Controlled Processes

steel research international, Volume 96, Issue 3, March 2025.
A laboratory‐scale hot‐rolled Ti–Mo–V–Nb steel with 1 GPa tensile strength is produced, and its microstructure and tensile properties are characterized using advanced analysis techniques and tensile testing. A Gleeble 3800 thermomechanical simulator is used to determine a process window. Results show significant differences in mechanical properties and
Olli Nousiainen, Jaakko Hannula, Sami Saukko, Antti Kaijalainen, Jukka Kömi   +4 more
wiley   +1 more source