Beating the miscibility barrier between iron group elements and magnesium by high-pressure alloying.

Investigation of influences of alloying elements and sintering temperature on the properties of high strength low alloyed sintered steel

Producing parts with high density and improved mechanical properties is one of the most important aims of powder metallurgy process. There are many factors for attaining modified properties in sintered parts but among them controlling type and quantity of alloying elements and manufacturing parameters such as compacting pressure, sintering temperature are the most effective. In this research, t...

Structural and Mechanical Characterization of Austempered Cu - Sn Ductile Iron Alloys

The effect of heat treatment and alloying elements of copper and tin on the microstructure and mechanical properties of austempered ductile cast iron alloys is investigated. The austenitizing temperature of 890°C, the isothermal transformation (austempering) temperatures of 285, 335 and 375°C, and austempering times of 15, 30, 75 and 150 minutes are studied. The alloying elements of copper and ...

Ab-initio high-pressure alloying of iron and potassium: Implications for the Earth’s core

[1] Ab-initio quantum mechanical calculations show that several percent potassium (K) can be alloyed into iron (Fe) at high pressure, suggesting that K may have been incorporated into the Earth’s iron-rich core. We find that substitutional incorporation of K into the high-pressure polymorph of Fe, hexagonal close packed (hcp) e-Fe, is energetically favored over the separate elements. The incorp...

CARBON DIOXIDE MINIMUM MISCIBILITY PRESSURE ESTIMATION (CASE STUDY)

Carbon dioxide flooding is considered to be one of the most effective enhanced oil recovery methods for the light oil reservoirs. Depending on the operating pressure, the process might be miscible or immiscible. Minimum miscibility pressure (MMP) is the most important parameter for assessing the applicability of any miscible gas flood for an oil reservoir. The miscibility condition is determine...

Effect of Alloying Elements on the Microstructure and Mechanical Properties of Austempered Ductile Iron Alloys