Thermal Analysis of Inoculated Grey Cast Irons
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2008, Vol 31, Issue 2
Abstract
A research was done to investigate the effect of 0.05…0.25wt.% addition rate of Ca, Zr ,Al – FeSi alloy, in ladle and in-mould inoculation of grey cast irons. In the present paper, the conclusions drawn are based on thermal analysis. For solidification pattern, some specific cooling curves characteristics, such as undercooling degree at the beginning of eutectic solidification and at the end of solidification, as well as recalescence level, were identified to be more influenced by the inoculation technique. In order to secure stable and controlled processes, representative thermal analysis parameters could be used, especially in thin wall grey iron casting production.
Authors and Affiliations
Mihai CHISAMERA, Stelian STAN, Iulian RIPOSAN, Eduard STEFAN, George COSTACHE
Keywords
Related Articles
- EP ID EP658896
- DOI -
- Views 81
- Downloads 0
Studies Concerning Energetic Consumption of Some Heating Equipments with Resistors
In order to increase the resistance of aluminium alloys a complex heat treatment is usually performed. Therefore, we must consider the reaction time between aluminium alloys and furnace atmosphera. These atmospheres cont...
Alumina Powder Properties Obtained by Neutralization Process of Sodium Aluminate
Today, the most production of alumina is used for aluminum production [1, 2] (metallurgy alumina), minor production of alumina is used for special purpose, as fire-resistant materials, electro porcelain and etc., and bec...
Corrosion Behavior of Some Materials in 0.5M Ammonium Hydroxide Solution
The present work has the purpose of studying metallographic aspects and corrosion resistance of three materials used in ammonia stripping plants. The corrosion process was evaluated by gravimetric tests and potentiodynam...
Researches Regarding Improvement of the Fatigue Limit by Heat Treatments of the Al-Alloys for Aeronautics Industry
The laboratory experiments were made on the two aluminium alloyed qualities used for aeronautical industry. The structure and mechanical characteristics were analyzed and the gotten results were compared using those two...
Design of a new type of Gas-Dynamic Disruptor used to Neutralize Improvised Explosive Devices
The paper presents a type of recoilless disruptor developed according to the studies of two disruptors performance and shortcomings currently used DR2 and RICHMOND, respectively. In creating the new disruptor, there were...