Effect of modifying process on mechanical properties of EN AC-43300 silumin cast into sand moulds
Journal Title: Archiwum Odlewnictwa - Year 2009, Vol 9, Issue 3
Abstract
Significance of alloy modification in course of casting process is the most explicitly visible on example of Al-Si alloys. Broad application of these alloys in foundry industry has become possible after invention of a method which changes solidification form of Al-Si eutectic mixture. Such primarily thick, acicular shape of silicon crystals becomes changed into fine and compact structure due to introduction of a small quantity of modifier to liquid alloy. The paper presents an attempt of assessment of melting and modification with strontium effects on mechanical properties of EN AC-43300 alloy cast into sand moulds. Obtained results concern selection of optimal quantity of strontium additive in aspect of obtained mechanical properties (Rm, A5, KCV, HB). Effect of strontium additive on change of mechanical properties of the investigated alloy was presented in graphical form. Further investigations shall be connected with determination of an effect of strontium additive on mechanical properties of the alloy after solution heat treatment and ageing treatment.
Authors and Affiliations
J. Pezda
Keywords
Related Articles
- EP ID EP72019
- DOI -
- Views 122
- Downloads 0
A possibility of Business Rules application in production planning
The complexity of scheduling problems in production systems and their impact on production functioning (in the area of technology and economics) cause that it is necessary to search for and develop new methods and algori...
Non-metallic inclusions structure dimension in high quality steel with medium carbon contents
The experimental material consisted of semi-finished products of high-grade, medium-carbon structural steel. The production process involved two melting technologies: steel melting in a 140-ton basic arc furnace with des...
Microhardness and tribological wear of the steels remelted with an electric arc
This study presents results of a research on the surface strengthening of the C15, C45 and C90U steels by application of concentrated heat stream with the GTAW methodology. Utilizing the GTAW methodology remelting of the...
Laboratory grey cast iron continuous casting line with electromagnetic forced convection support
The article describes the construction of a 20 mm diameter grey cast iron ingots continuous casting laboratory line. This line is made of three main units: melting unit (induction furnace), casting unit and the pulling u...
Effect of ring notch radius on the decohesion mode in AlSi alloys
The article discusses the effect of the, determined by tensile test, non-linear characteristics of AlSi alloys on the value of the shape factor k for the three different sizes of the radius of the ring notch made on roun...