Mechanism and Tendency of Die Erosion in Al-Si Casting Alloy for Permanent Mold Casting Process

Bong Hwan Kim; Sang Mok Lee

doi:10.4028/www.scientific.net/AMR.421.77

Paper Titles

Numerical Simulation Analysis on the Ten Cross Rolls Straightening Process of the Heavy Calibre Seamless Steel Tube
p.56

The Effects of Compression Pressure Applied on the Manufacture of Carbon Composite Bipolar Plate for PEMFC by Utilizing Graphite Waste Products
p.60

Prediction of the Position on Solidification End Point of Continuous Caster
p.67

Modification of Fly Ash by Sodium Tetraethylenepentamine-multi Dithiocarbamate and its Removing Performance towards Cu(II)
p.71

Mechanism and Tendency of Die Erosion in Al-Si Casting Alloy for Permanent Mold Casting Process
p.77

Optimization of Solid State Fermentation Media for Soluble Dietary Fiber Production by Hericium erinaceus
p.81

Phase-Field Numerical Simulation of Pure Free Dendritic Growth Using Wheeler and Karma Model
p.90

Analysis of Vibrating Natural Frequency of Pressure Pipeline
p.98

Contact Performance Study of Modified Spur Bevel Gear Considering Assembly Error
p.102

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 421Mechanism and Tendency of Die Erosion in Al-Si...

Mechanism and Tendency of Die Erosion in Al-Si Casting Alloy for Permanent Mold Casting Process

Abstract:

The mechanism of die erosion in Al-Si alloys was investigated based on the formation behavior of iron-containing intermetallics. And the metallurgical parameters affecting on the erosion tendency were discussed as functions of chemical composition for a guideline of melt control in Al-Si foundry. It was found that the intermetallic layers of α-AlFeSi, β-AlFeSi and θ-AlFe were formed through metallurgical reactions. The erosion tendency of die material was determined by not only the gradient of iron content through the interface between die material and molten alloy but also the relative formation temperature of primary intermetallics.