Results 101 to 110 of about 6,016 (227)

Formation of bainite below martensite start temperature in quenching low carbon steel

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics
According to the phase transformation kinetics that we recorded by dilatometry in rapid cooling of low carbon steel, some amount of isothermal bainite appeared in the middle of martensitic temperature range.
Zolotorevsky Nikolay   +3 more
doaj   +1 more source

Bainite Transformation Kinetics-Microstructure Characterization of Austempered 4140/4150 Steel

open access: yes, 2019
Bainite transformation in steel involves understanding of its kinetics, morphology, and the activation energy. This research studied the characteristics of all three of these aspects for 4140/4150 steel in a wide range of austempring processes, in which ...
Zhu, Jian G.
core  

Effect of Cooling Rate on Structure Evolution of Hot Deformed Ferrite-Bainite Micro Alloying Steel

open access: yesTeshugang, 2007
Ferrite-bainite(F+B)microalloying  steel0.06C-1.08Si- 1.64Mn-0.30Mo-0.039Nb-0.01Ti  has   been  developed;  continuous  cooling  transformation(CCT)diagram  of  50%  deformed  test  steel  at  900  ℃  and  with  cooling  rate 0.5~40  ℃/s  was  obtained ...
管丽, 刘雅政, 周乐育, 宋仁伯
doaj  

Development of Hard Bainite

open access: yes, 2003
6 páginas, 8 figuras, 2 tablas.It is demonstrated that in a high-carbon steel where carbide precipitation is suppressed, bainite can be obtained by isothermal transformation at temperatures as low as 200°C.
García Mateo, Carlos   +2 more
core  

Kinetics of bainite transformation in steels

open access: yes, 2012
The main kinetic features of the formation of bainite are discussed, firstly in relation to two incompatible hypotheses for the growth mechanism of bainitic ferrite.
Hillert, Mats,   +3 more
core   +1 more source

Microstructure Evolution of Cold-Rolled Carbide-Free Bainite Steel Sheets During Continuous Annealing Process

open access: yesMetals
A modified carbide-free bainite (CFB) steel has been developed, building on existing alloys for compatibility with commercial continuous annealing lines (CALs), featuring a low austenitization temperature and short overaging time.
Bahareh Mobedpour   +2 more
doaj   +1 more source

The Effect of Prior Ferrite on Bainite Transformation Kinetics

open access: yes, 2020
In this work the effect of ferrite on the formation of bainite is studied. Different ferrite fraction of up to 25% were obtained through the application of three different intercritical annealing treatments to an Fe-0.2C-3Mn-2Si (wt%) steel.
Uittenbroek, Lennard (author)
core  

The mechanism of bainite transformation

open access: yes, 2003
Ultra-fine structures of bainite and its surface relief, and carbide nucleation inside austenite at the interface of ferrite/austenite are studied in this paper.
B.-Z. Bai   +5 more
core   +1 more source

Knowledge Integration in Steel Microstructure Analysis Using Unsupervised Image Segmentation and Supervised Machine Learning Techniques

open access: yesApplied Sciences
This study presents a methodology for analyzing bainitic microstructures in steel using image segmentation techniques and machine learning methods. Images of steel microstructures were processed using a superpixel segmentation algorithm, which generated ...
Tomasz Jażdżewski   +3 more
doaj   +1 more source

Critical Assessment of Bainite Models for Advanced High Strength Steels

open access: yes, 2011
Bainite is an essential constituent in the microstructure of many advanced high strength steels, e.g. ferrite-bainite dual-phase, transformation induced-plasticity (TRIP) and complex phase (CP) steels.
Matthias Militzer, Fateh Fazeli, Tao Jia
core   +1 more source

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