Results 231 to 240 of about 5,978 (267)

Transformation of retained austenite in carburized 4320 steel

Metallurgical Transactions A, 1991
A systematic study of stress-induced and thermal-induced transformation of retained austenite in carburized 4320 steel with an initial retained austenite of 35 pct has been conducted. The transformation was monitored by recording the change in volume of smooth fatigue specimens.
R. W. Neu, Huseyin Sehitoglu
openaire   +1 more source

Electron-Metallographic Identification of Retained Austenite in Steels

Proceedings, annual meeting, Electron Microscopy Society of America, 1975
Recently it has been discovered by electron microscopy that even in medium carbon steels (Mf≳200°C) small quantities of interlath retained austenite (γ) is present in as-quenched structures. It is speculated that this small quantity of retained γ can have a profound influence on the mechanical properties of steel.
B. V. Narasimha Rao, J. Y. Koo, G. Thomas   +2 more
openaire   +1 more source

Microstructures and stability of retained austenite in TRIP steels

Materials Science and Engineering: A, 2006
Abstract Transformation induced plasticity (TRIP) steels exhibit a combination of high strength and ductility due to their multi-phase microstructure, including ferrite, bainite and retained austenite which transforms to martensite under the external stress.
X.D. Wang, B.X. Huang, Y.H. Rong, L. Wang   +3 more
openaire   +1 more source

Retained austenite in intercritically annealed HSLA steel

Metallography, 1987
Abstract The effects of processing parameters on austenite retention in intercritically annealed HSLA steels have been investigated. Low-temperature tempering was found to be necessary for successful tint etch of high-carbon martensite in dual-phase structure with sodium metabisulfite.
Q.Y. Long, D. Tseng, K. Tangri
openaire   +1 more source

On the stabilization of retained austenite: mechanism and kinetics

Materials Science and Engineering: B, 1995
Abstract Stabilization of retained austenite is now well established and refers primarily to a process where further martensite transformation is hindered. However, the literature shows a wide variety of ways in which this impediment can be brought into play.
openaire   +1 more source

Advantages and Shortcomings of Retained Austenite in Bearing Steels: a Review

2014
no ...
Sidoroff, Christine, Perez, Michel, Dierickx, Pierre, Girodin, Daniel   +3 more
openaire   +2 more sources

Lattice parameter measurement in retained austenite by CBED

Proceedings, annual meeting, Electron Microscopy Society of America, 1983
The thin film (50-400 Å) retained austenite (ret-γ) (fig.1.a-b) has been identified at the lath boundaries of dislocated martensitic medium carbon (C) low alloy experimental steels, which were designed for structural applications. The existance of this parent γ-phase at the ambient temperatures has been attributed to several stabilization mechanisms in
Mehmet Sarikaya, John W. Steeds, Gareth Thomas   +2 more
openaire   +1 more source

An analysis of retained austenite in austempered ductile iron

Metallurgical and Materials Transactions A, 2003
Data from the literature have been analyzed to understand aspects of the retained austenite in austempered ductile irons, especially its relationship with the transformation mechanism of bainite. The final and initial carbon concentrations in austenite, % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn ...
openaire   +1 more source

Stability of retained austenite on ageing

Acta Metallurgica, 1960
E.G. Ramachandran, C. Dasarathy
openaire   +1 more source

Mössbauer analysis of retained austenite

Journal of Applied Mechanics and Technical Physics, 1992
V. P. Larionov, Ya. S. Semenov, S. G. Kas'yanov   +2 more
openaire   +1 more source