Results 31 to 40 of about 297 (137)
Adjusting Mechanical Properties of Forging Dies Produced by Ausforming
Due to high thermo-mechanical loads, tools used in hot forming operations need a high resistance to different damage phenomena, such as deformation, cracking and abrasion.
Behrens, Bernd-Arno +4 more
core +1 more source
Ausforming treatments at different temperatures were applied to a medium C[sbnd]Si rich carbide free bainitic steel, and the role of transformation plasticity on the evolution of the microstructure is discussed.
García Mateo, Carlos +2 more
core +1 more source
Effect of Ausforming on the Macro- and Micro-texture of Bainitic Microstructures [PDF]
The reason why variant selection phenomena occur in ausforming treatments is still not known. For that reason, in this work, the effect of compressive deformation on the macro and micro-texture of a bainitic microstructure was analyzed in a medium-carbon
Adriana Eres-Castellanos +11 more
core +1 more source
The mechanisms driving variant selection phenomena in ausformed bainitic microstructures are not fully controlled yet. Previous results are not congruent among them, as they cannot be explained by the same rule.
Adriana Eres-Castellanos +4 more
doaj +1 more source
The influence of tempering at 400 and 500 °C on two bainitic ferrite microstructures obtained via pure isothermal transformation and ausforming followed by the isothermal transformation was studied in a medium C-Si rich bainitic steel.
M. Zorgani, C. Garcia-Mateo, M. Jahazi
doaj +1 more source
Effect of ausforming strain on martensite start temperature
Ausforming is generally believed to decrease the martensite start (Ms) temperature. However, the present experiment found that Ms temperature firstly increased at small strain and then decreased at large strain. This interesting finding may be explained by the competing role of dislocation played in martensitic transformation.
Huang, M, He, B, Xu, W
openaire +2 more sources
Carbide-free bainitic (CFB) steel has become a new forefront of advanced high-strength steels owing to their outstanding balance in mechanical properties.
Kumnorkaew, Theerawat
core +1 more source
Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective
The major strengthening mechanisms in bainitic steels arise from the bainitic ferrite plate thickness rather than the length, which primarily determines the mean free slip distance.
Carlos Garcia-Mateo +7 more
doaj +1 more source
The bainitic ferrite plate thickness is the main parameter that controls the strength of this type of microstructures. Such thickness has been proved to mainly depend on the austenite yield strength, the driving force for the transformation and the ...
Adriana Eres-Castellanos +6 more
doaj +1 more source
Kinetic Model of Isothermal Bainitic Transformation of Low Carbon Steels under Ausforming Conditions
Carbide-free bainitic steels show attractive mechanical properties but are difficult to process because of the sluggish phase transformation kinetics. A macroscopic model based on the classical nucleation theory in conjunction with the modified Koistinen&
Junhe Lian +3 more
core +1 more source

