Results 1 to 10 of about 2,750 (218)

Carbon Redistribution Process in Austempered Ductile Iron (ADI) During Heat Treatment—APT and Synchrotron Diffraction Study

open access: yesMetals, 2019
In-situ synchrotron diffraction and atom probe tomography (APT) have been used to study the carbon diffusion and redistribution process in austempered ductile iron (ADI) during austempering. The process of carbon content change in bainitic ferrite during
Xiaohu Li   +8 more
doaj   +1 more source

Bainite kinetic energy, activation energy, and tribological behavior of austempered AISI4340 steel

open access: yesJournal of Materials Research and Technology, 2021
A study has been made of the effect of heat-treatment on the microstructures of commercial quality AISI4340 steel after austenitizing at 1128 K and austempering at temperatures ranging from 561 K to 644 K.
Xue Han   +6 more
doaj   +1 more source

Residual stress analysis in PVD coated austempered ductile iron [PDF]

open access: yes, 2013
The aim of this work is to study residual stresses (RS) in PVD TiN and CrN coated ADI substrates with different nodule counts, austempering temperatures and surface finishing methods (grinding and polishing).
Colombo, Diego Alejandro   +3 more
core   +2 more sources

Effect of austempering time on the microstructure and carbon partitioning of ultrahigh strength steel 56NiCrMoV7 [PDF]

open access: yes, 2017
Ultrahigh strength steel 56NiCrMoV7 was austempered at 270 °C for different durations in order to investigate the microstructure evolution, carbon partitioning behaviour and hardness property.
Abbaschian   +11 more
core   +3 more sources

Effect of alloying elements on austempered ductile iron (ADI) properties and its process: Review [PDF]

open access: yesChina Foundry, 2015
Austempered ductile iron (ADI) parts have a unique combination of high strength and toughness with excellent design flexibility and low cost. These excellent properties are directly related to its microstructure called "ausferrite" that is the result of ...
Amir Sadighzadeh Benam
doaj  

Effect of refined multi-scale microstructures on the ultra-high impact toughness of bainitic steel austempered below Ms temperature

open access: yesJournal of Materials Research and Technology, 2023
In this study, the multi-scale microstructures of bainitic steel were refined to different degrees by austempering below Ms (martensite start temperature). The influence of multi-scale microstructures and their boundaries on impact toughness was analyzed.
Kun Wang   +6 more
doaj   +1 more source

Effect of austempering parameters on microstructure and mechanical properties of horizontal continuous casting ductile iron dense bars [PDF]

open access: yesChina Foundry, 2015
In the present research, the orthogonal experiment was carried out to investigate the influence of different austempering process parameters (i.e. austenitizing temperature and time, and austempering temperature and time) on microstructure and mechanical
Chun-jie Xu, Pan Dai, Zheng-yang Zhang
doaj  

Advances in Ductile Iron Research: new metallurgical understanding and its technological significance [PDF]

open access: yes, 2005
The present work gives an updated view about important metallurgical concepts, concerning the influence that solidification structure, microsegregation, piece size and austenite characteristics, exert on final microstructure, properties and processing ...
Boeri, Roberto Enrique   +1 more
core  

Residual stress, phase, microstructure and mechanical property studies of ultrafine bainitic steel through laser shock peening [PDF]

open access: yes, 2019
The aimed study proposes laser shock peening without a coating of high strength ultrafine bainitic steel to mitigating the fatigue failures for automotive and structural engineering applications.
Prabhakaran , Subramanian   +3 more
core   +1 more source

Sliding wear behavior of PVD CrN and TiN coated austempered ductile iron [PDF]

open access: yes, 2014
This work studies the sliding wear behavior of PVD coated austempered ductile iron samples. The effects of the substrate surface finishing method (grinding and polishing) and coating material (CrN and TiN) on the wear behavior are evaluated.
Colombo, Diego Alejandro   +4 more
core   +2 more sources

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