Ferritic-austenitic cast steel - selected problems
Journal Title: Archiwum Odlewnictwa - Year 2011, Vol 11, Issue 3
Abstract
The author has been involved in the problems occurring in the manufacture of ferritic-austenitic cast steel castings for many years. The author’s remarks and investigation results reported in this article will enable potential manufacturers to determine their own technical capabilities and structural determinants related to the chemical composition of material, which are crucial to the good quality of a casting. Particular emphasis should be laid on the role of enhanced carbon content, the presence of copper, the precipitates of the ζ phase, and the nature of solidification structure in the tendency of duplex-type cast steel to cracking. It seems that in view of the pro-ecological activities undertaken, including flue gas desulphurization in coal-fired power plants, efforts should be made in steel foundries to introduce selected grades of ferritic-austenitic cast steel to production.
Authors and Affiliations
Z. Stradomski
Keywords
Related Articles
- EP ID EP72293
- DOI -
- Views 110
- Downloads 0
Studies of structural and mechanical properties of aluminum skeleton castings
Skeleton castings were manufactured in accordance to elaborated production technology. The subject of the research was the microstructural analysis of non - monolithic castings. Analysis of metallographic specimens and q...
Production of Steel Casts in Two-Layer Moulds with Alkaline Binders Part 1. Backing sand with the alkaline inorganic binder RUDAL
Steel casts in Z.N. POMET were produced in moulds made of the moulding sand Floster. This sand did not have good knocking out properties, required a significant binder addition (4.5-5.0 parts by weight), and the casting...
Influence of selected modifiers on crystallization curve of chromium cast iron
In article was introduced the results of investigations of modified chromium cast iron crystallization process. It the cast iron about composition of basic elements C = 2,8 % and Cr = 18% was modified with five substance...
Bainitic nodular cast iron with carbides obtaining with use of Inmold method
In these paper bainitic nodular cast iron with carbides as-cast obtaining has been presented. This cast iron has been obtained with use of Inmold method. It was shown, that there is the possibility of bainite and carbide...
Effect of overheating degree on the solidification parameters of AlSi17CuNiMg silumin
Melting technology, especially the temperature of overheating and pouring above the liquidus point Tliq as well as the cooling rate, determine alloy macro - and microstructure, and hence also casting performance proper...