Publication | Open Access
Identification of Ti-S-C-containing Multi-phase Precipitates in Ultra-low Carbon Steels by Analytical Electron Microscopy.
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1997
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Materials ScienceMaterials EngineeringX-ray SpectroscopyPowder MetallurgyPhysicsSpecial OrientationsEngineeringNatural SciencesX-ray DiffractionApplied PhysicsTi-s-c-containing Multi-phase PrecipitatesUltra-low Carbon SteelsHigh Strength Low Alloy SteelUlc SteelsChemistryAlloy PhaseMicrostructureAnalytical Electron Microscopy
The Ti-, S-, and C-containing particles in ultra-low carbon (ULC) interstitial free steels are frequently multi-phase in nature, consisting of TiS (9R) and Ti4C2S2(H), and, therefore, show an irrational Ti/S ratio as detected by an X-ray energy dispersive spectrum (EDS). This paper confirmed the existence of multi-phase precipitates in ULC steels by analytical electron microscopy. It is shown that an accurate description of 9R-H two-phase composite particles can only be achieved when particles are at some special orientations.