Journal ArticleDOI
The effect of morphology on the stability of retained austenite in a quenched and partitioned steel
Reads0
Chats0
TLDR
In this paper, X-ray diffraction and transmission electron microscopy experiments are employed to investigate the mechanical stability of retained austenite in a quenching and partitioning steel.About:
This article is published in Scripta Materialia.The article was published on 2013-03-01. It has received 482 citations till now. The article focuses on the topics: Austenite & Quenching.read more
Citations
More filters
Journal ArticleDOI
Driving Force and Logic of Development of Advanced High Strength Steels for Automotive Applications
TL;DR: In this article, the authors present the driving forces and logic of development of various high strength steels for automotive applications since 1980s and highlight the importance of crash performance, weight saving, formability, and rigidity.
Journal ArticleDOI
Enhanced ductility and toughness in an ultrahigh-strength Mn-Si-Cr-C steel: The great potential of ultrafine filmy retained austenite
TL;DR: In this article, the formation process of the bainitic microstructure as well as martensite and retained austenite was revealed by conducting dilatometry, X-ray diffraction, scanning electron microscopy, electron backscatter diffraction and transmission electron microscope (TEM).
Journal ArticleDOI
Smaller is less stable: Size effects on twinning vs. transformation of reverted austenite in TRIP-maraging steels
TL;DR: In this paper, a model of the TRIP-maraging steel microstructure was designed with support from diffusion simulations (using DICTRA software) to investigate size effects on cRN transformation independent of other factors that can influence austenite stability.
Journal ArticleDOI
Effect of fresh martensite on the stability of retained austenite in quenching and partitioning steel
TL;DR: In this paper, the effect of retained Austenite on the mechanical properties and its transformation stability were determined by stepwise uniaxial micro-tensile testing and subsequent electron backscatter diffraction (EBSD) study of a pre-selected region.
Journal ArticleDOI
Effects of retained austenite volume fraction, morphology, and carbon content on strength and ductility of nanostructured TRIP-assisted steels
TL;DR: In this paper, the volume fraction, morphology, and carbon content of the retained austenite (RA) in a transformation-induced-plasticity (TRIP) steel with the nominal chemical composition of 0.19C-0.30Si-1.52Al (weight percent, wt%).
References
More filters
Journal ArticleDOI
Carbon partitioning into austenite after martensite transformation
TL;DR: In this paper, a model is developed to describe the endpoint of carbon partitioning between quenched martensite and retained austenite, in the absence of carbide formation.
Journal ArticleDOI
Criterion for the action of applied stress in the martensitic transformation
J.R. Patel,Morris Cohen +1 more
TL;DR: In this article, the martensitic reaction is treated as a strain transformation with shear and dilatational displacements, respectively parallel and normal to the habit plane, and the resulting effect on the temperature is calculated from the mechanical work done on or by the transforming region as the resolved shear, and normal components of the applied stress are carried through the corresponding transformation strains.
Journal ArticleDOI
Austenite grain size and the martensite-start temperature
TL;DR: In this paper, the dependence of the martensite-start temperature on the austenite grain size has been investigated and a theory based on the ability to detect transformation as a function of the grain size was proposed.
Journal ArticleDOI
Bainite in silicon steels: new composition–property approach Part 1
TL;DR: In this article, a quantitative relationship between the composition and some important mechanical properties of silicon containing steels, which can be transformed isothermally to an aggregate of bainitic ferrite and carbon enriched retained austenite only, has been developed.
Journal ArticleDOI
Enhanced work-hardening behavior and mechanical properties in ultrafine-grained steels with large-fractioned metastable austenite
TL;DR: In this paper, it was suggested that the austenite volume fraction and its mechanical stability is the key to understand the phase transformation induced deformation behavior of manganese-bearing steels.