Results 41 to 50 of about 1,996 (186)
Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova +5 more
wiley +1 more source
Upper to Lower Bainite Transition in a High-Carbon Low Alloy Steel: Linking Overall Transformation Kinetics, Microstructure and Microhardness [PDF]
The transition from upper-to-lower bainite in carbon steels is a complex process yet not fully explored. This study examines such transition in a 0.7C, 0.74Mn, 0.61Si, 0.2Cr (wt%) low-alloy steel using a comprehensive approach that integrates dilatometry,
Samuel da Silva de Souza +4 more
doaj +2 more sources
Calculation of heat transfer during the manufacture of railway wheels of increased hardness
The article is devoted to the study of temperature conditions in the tread of a railway wheel during the production of wheels with increased hardness of the rolling surface.
A. M. Lykov, V. P. Ivanov, D. D. Lykov
doaj +1 more source
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra +7 more
wiley +1 more source
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi +3 more
wiley +1 more source
This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley +1 more source
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König +2 more
wiley +1 more source
The progress of research on Mn, Si, Cr, Mo and Al content in high carbon chromium bearing steel, and heat treatment process including martensite quenching-tempering, bainite austempering, bainite-martensite and martensitebainite quenching, as well as ...
张国宏, 张志成, 吴开明
doaj
ABSTRACT Spring steels are widely used in automotive and railway systems, in which service reliability is strongly affected by the yield strength ratio (YSR). However, accurate YSR prediction remains challenging because of the nonlinear coupling between alloy composition and heat‐treatment parameters, particularly when limited data are available.
Yingdong Fu +9 more
wiley +1 more source
Effect of Tempering on Size and Orientation of Grain in Ultra-Fine Grain Bainite Steel
With 50 kg vacuum induction furnace melted ingot,breakdown at 1150 ℃ and two stage control rolling, 12 mm plate finishing rolling at 830 ℃,then relaxation for 27 s,water cooling at 720 ℃ with cooling rate 30~35 ℃/s, the ultra-low-carbon bainite ...
陈庆丰 +5 more
doaj

