Beware of Grain Refinement

Boris V. Ovsyannikov

doi:10.4028/www.scientific.net/MSF.794-796.143

Paper Titles

Full through Process Simulation for Low Pressure Die Casting – From Casting to Design
p.118

A Novel Ultrasonic Casting Process Using Controlled Cavitation and Melt Flow in Hot Top Molds
p.124

Modification of Eutectic Si in Al-Si Based Alloys
p.130

The Heat Treatment of Rheo-High Pressure Die Cast 6xxx Series Al-Mg-Si-(Cu) Alloys
p.137

Beware of Grain Refinement
p.143

Melt Conditioned Direct Chill Casting (MC-DC) Process for Production of High Quality Aluminium Alloy Billets
p.149

Grain Refinement Efficiency of a New Oxide-Containing Master Alloy for Aluminium Casting Alloys
p.155

The Grain Refinement of Al-Si Alloys and the Cause of Si Poisoning: Insights Revealed by the Interdependence Model
p.161

A New Approach of Casting Aluminium Alloy Bar by Applying Low Frequency Electromagnetic Field
p.167

HomeMaterials Science ForumMaterials Science Forum Vols. 794-796Beware of Grain Refinement

Beware of Grain Refinement

Abstract:

Recently significant successes have been achieved in the field of grain refinement by means of such additives as the titanium, zirconium, scandium, AlTiB and AlTiC. However, introduction of grain refining additives results to a number of negative effects. These effects can be divided into four basic groups: 1. Reduction of high-strength alloy casting properties. 2. Defects of structure. 3. Intermetallic and oxide inclusions. 4. Decrease in mechanical and fatigue properties of the semis made of ingots with fine grain.

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Periodical:

Materials Science Forum (Volumes 794-796)

Pages:

143-148

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.794-796.143

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Online since:

June 2014

Authors:

Boris V. Ovsyannikov*

Keywords:

DC Casting, Defect, Grain Refinement, Ingot, Structure

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