Results 71 to 80 of about 791 (183)

Effect of the welding technique and post-welding heat treatments on the microstructure and mechanical properties of a high silicon nanostructured carbide-free bainitic steel

open access: yesJournal of Materials Research and Technology
Recently carbide free bainitic steels, with microstructure consisting in nanoscaled bainitic ferrite plates and high carbon-enriched austenite, have been developed.
Mattia Franceschi   +7 more
doaj   +1 more source

Microstructural design of retained austenite and bainitic variants for improved ductility–toughness synergy in a low-carbon railway steel

open access: yesJournal of Materials Research and Technology
Pearlitic steels are widely employed in high-speed railway rails but suffer from an inadequate strength-toughness balance and fatigue-related defects.
Ao Liu   +7 more
doaj   +1 more source

Optimization of alloying element types and contents in high strength and high toughness bainitic steels

open access: yesJournal of Materials Research and Technology
Currently, the high alloy content of bainitic steels imparts excellent properties but also leads to problems such as high cost of production and difficulties in recycling and reuse.
Ranran Zhu   +6 more
doaj   +1 more source

Combined Effects of Deformation and Undercooling on Isothermal Bainitic Transformation in an Fe-C-Mn-Si Alloy

open access: yesMetals, 2019
Both ausforming and transformation temperature affect the successive bainitic transformation and microstructure. The individual influence of each case is clear, whereas the combined effects are still unknown. Thermomechanical simulation and metallography
Hang Zou   +4 more
doaj   +1 more source

Evaluation of Shear-Punched Surface Layer Damage in Ultrahigh-Strength TRIP-Aided Steels with Bainitic Ferrite and/or Martensite Matrix Structure

open access: yesMetals
The damage to the shear-punched surface layers such as strain-hardening, strain-induced martensite transformation, and micro-void initiation behaviors was evaluated in the third-generation low-carbon advanced ultrahigh-strength TRIP-aided bainitic ...
Koh-ichi Sugimoto   +3 more
doaj   +1 more source

Improving strength and ductility via ausforming combined with austempering through deformation-induced bainite refinement

open access: yesJournal of Materials Research and Technology
The refinement of bainitic ferrite laths is one of the most critical ways to improve the combination of strength and ductility. However, low-temperature bainitic transformations in the microstructural evolution of carbide-free bainite in high-carbon ...
Jianhua Li   +5 more
doaj   +1 more source

The effect of microstructure on the initial corrosion behavior of low carbon steel in simulated coal solution

open access: yesMaterials Research Express
The service life of weathering steels in wagon body was determined by their corrosion resistance directly. This study investigated the influence of microstructure on the initial corrosion behavior of low carbon steels, systematically.
Chunyu He, Wei Yu, Di Tang
doaj   +1 more source

Design of novel bainitic steels

open access: yes, 2002
En los últimos años se han diseñado aceros con microestmcturas formadas por placas de ferrita bainítica superior y finas regiones de austenita retenida que, por su excelente combinación de propiedades de resistencia y tenacidad, han sido empleados para numerosas aplicaciones. Aunque en estas microestructuras puede haber algo de martensita, su formación
Caballero, F. G.   +4 more
openaire   +1 more source

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