Results 71 to 80 of about 1,130 (182)

Study of bainitic transformation kinetics in SAE 52100 steel

open access: yesJournal of Materials Research and Technology, 2019
The objective of this research was to investigate the bainitic formation in austempered SAE 52100 steel. The original microstructure of SAE 52100 steel consisted of spheroidized pearlite.
Yuming Pan, Bingxu Wang, Gary C. Barber
doaj   +1 more source

BAINITE : OVERALL TRANSFORMATION KINETICS

open access: yesLe Journal de Physique Colloques, 1982
New experimental results on the overall transformation kinetics of the bainite reaction (in three different steels) are interpreted in terms of recent work on the transformation mechanism of bainite. The analysis is shown to be consistent with (a) a linear dependence of the activation energy for isothermal nucleation, on the transformation free energy ...
openaire   +2 more sources

Influence of Mn on nanobainite formation kinetics and austenite retention in Al-added medium-Mn steels subjected to hybrid isothermal annealing

open access: yesJournal of Materials Research and Technology
This study investigates the bainite transformation kinetics, microstructural evolution, and mechanical properties of Al-alloyed 3MnNb and 4MnNb multiphase steels subjected to a novel hybrid heat treatment.
Mateusz Morawiec   +6 more
doaj   +1 more source

Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet

open access: yesTeshugang, 2019
By measuring the dilatometric curves of 15MnVB steel with cooling speed 0.05 ~20 ℃/s on Gleeble-1500 thermo-mechanical simulator, and combining with metallographic analysis, a CCT diagram of hot deformed austenite in continuous cooling transformation was
李世琳   +3 more
doaj  

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

Advance in Research on Evolution of Structure in TRIP Steels during TMP and Heat Treatment

open access: yesTeshugang, 2007
Influence factors on evolution of structure in hot rolled TRIP steels during TMP(Thermnomechanical processing)finishing rolling(austenite deformed in non-crystallization region),ROT(run out table)cooling(phase transformation in y-a two phase region)and ...
唐代明
doaj  

In-situ investigation on the morphological evaluation of bainitic microstructure of medium C-steel

open access: yesDiscover Materials
The bainitic transformation behavior and microstructural evolution in C–Mn–Si steel were investigated using in-situ Laser Scanning Confocal Microscopy (LSCM) and dilatometry.
Soumyadarshi Saswat Mahapatra   +3 more
doaj   +1 more source

Influence of Ausforming on Hardenability of Steel 09MnNb for L485QS Sour Sevice Pipeline

open access: yesTeshugang, 2019
To study the effect of ausforming on hardenability in steel 09MnNb used for L485QS sour service pipeline, different ausforming processes were performed and the subsequent hardenabilitis and microstructures were tested.
方剑, 黄彦, 唐应波
doaj  

Acoustic emission during austenite decomposition into lower bainite with midrib

open access: yesArchives of Acoustics, 2014
Phenomena accompanying bainitic transformation in the range of swing back were investigated by using acoustic methods and microscopic analyses. It has been found out that midribs are probably formed in the first few dozen seconds.
T. Z. Woźniak, Z. Ranachowski
doaj  

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