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 87
- Downloads 0
Structural stability at elevated temperatures of the AlSi6Cu4 matrix composite with graphite particles
The results of investigation of structure stability of the AlSi6Cu4 matrix alloy and composites with graphite particles at elevated temperatures were presented. Composites and matrix alloy were prepared by squeeze castin...
Method of efficiency improvement of software used for solidification process simulations
This paper presents a new method that can be used to improve the efficiency of applications used for simulations of solidification processes. The new approach concentrate on conductivity matrix building process. This ope...
Silumins alloy crystallization
This paper presents the results of research, by ATD method, of hypo-, near- and hyperutectic silumins crystallization containing the following alloying additives: Mg, Ni, Cu, Cr, Mo, W, V. It has been shown that, dependi...
Stereology of carbide phase in modified hypereutectic chromium cast iron
In paper are presented results of studies of carbide phase stereology modified hypereutectic wear resistance chromium cast iron which contains carbon about 3,5% and chromium about 25%. Three substances were applied to th...
Geometrical and mechanical analysis of 3D casted skeleton structure
The article presents selection of the geometry of engineering casted skeleton structure using the analysis of the stress state of structural variants. The main criterion for selection was using the simplest geometry of c...