Journal ArticleDOI
Thermodynamics and phase diagram of the Fe-C system
TLDR
A critical review of published data provides a fairly accurate knowledge of the thermodynamic properties of all of the phases of the system Fe-C that are stable or metastable at atmospheric pressure as discussed by the authors.Abstract:
A critical review of published data provides a fairly accurate knowledge of the thermodynamic properties of all of the phases of the system Fe-C that are stable or metastable at atmospheric pressure. Selected data are shown as tables and equations. A proposed phase diagram differs only slightly from others recently published but has the following features. Peritectic compositions and the α-γ equilibrium are shown to agree with measured values of the activity of iron in the solid and liquid solutions and the thermodynamic properties of pure iron. Of all the reported carbides of iron only two may be studied under equilibrium conditions. The solubilities of cementite and of χ-carbide in α-Fe are deduced from measured equilibria. Both are metastable at all temperatures with respect to graphite and its saturated solution in iron. The χ-carbide becomes more stable than cementite below about 230° Certain published data on e-carbide permit an estimate of its free energy as a precipitate during the aging process.read more
Citations
More filters
Journal ArticleDOI
Joining steel studs and steel plates by solid-state stud welding and estimation of temperature near the joint interface
TL;DR: In this article, the suitability of solid-state stud welding for joining steel studs to steel plates was examined, and the stud and plate were successfully joined to steel plate at charged voltages of 125-200 V without distortion of the plate and tarnish marks on the back surface.
DissertationDOI
Metal matrix composites reinforced with SiC long fibers and carbon nanomaterials produced by electrodeposition
Abdul Karim,Muhammad Ramzan +1 more
TL;DR: In this paper, the authors investigated the possibility of realizing continuous fibers reinforced metal matrix composites over the superalloys that can further improve the high temperature properties of the composite materials.
The effect of carbon segregation and carbide precipitation on the mechanical response of martensite
TL;DR: In this paper, the influence of carbon distribution and carbide precipitation on the mechanical properties of 300M martensitic steel has been investigated using transmission electron microscopy (TEM) and APT.
Journal ArticleDOI
The effect of an intercritical heat treatment on temper embrittlement of a Ni-Cr-Mo-V rotor steel
T. Wada,D. V. Doane +1 more
TL;DR: In this paper, the effect of an intercritical heat treatment on tempor embrittlement has been investigated for a rotor steel containing 0.25 pct C, 3.5 pct Ni, 1.7 pct Cr, 0.1 pct V, and deliberate additions of phosphorus, tin, or antimony.
Journal ArticleDOI
Phase-field simulation of multi-phase interactions in Fe-C peritectic solidification
TL;DR: In this article, a multi-phase field model is implemented to simulate the microstructure evolution and carbon diffusion of the Fe-C peritectic solidification, based on the ferrite phase dendritic structure and the initial carbon distribution.
References
More filters