Theoretical basis of Al-Si coat crystallization on gray and nodular cast iron and making the layered items using it

• Autorzy: Pietrowski, S. , Szymczak, T.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this study was to present studies of crystallization and the construction of the coat consisting of Al-Si alloys, also with alloy additives: Ni, Cu and Mg, deposited on gray and nodular cast iron, and the connection through this coat the layered item. On this basis, a model of creating a coat and layered item was developed. Design/methodology/approach: Studies of coats and layered products were carried out on scanning electron and optical microscopes. The chemical microanalysis and diffraction of backward scattered atoms in the characteristic areas of the coat and substrate material was made. Findings: : In this paper the influence of the most important technological factors on the thickness and phase construction of the silumin coat and connection quality in the layered item was presented. Research limitations/implications: Currently, research of dip application of coats made of silumins containing: Cu, Ni, Mg, Cr, Mo, W and V on non-alloy and alloy steels and the manufacture of layered items to their use are conducted. Practical implications: Dip coats are used as protective coats or intermediate coat of layered item. The paper presents an example of the implementation for the manufacture of the layered items low-alloyed gray cast iron-silumin coat-silumin reciprocating compressor body for room air conditioning. Originality/value: Originality of the paper consists in elaborating of the theoretical model of forming the diffusion layer made of Al-Si-M silumin on iron alloys. Theoretical basis of layers production were elaborated too. They are significant for collar fillings production in high-pressure combustion engines pistons, as anticorrosive layers and for layered items production.

Słowa kluczowe

EN

casting; nodular and gray cast iron; Al-Si coat; layered item

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2011
• Tom: Vol. 49, nr 2
• Strony: 421--439
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Pietrowski, S.

• Department of Materials Engineering and Production Systems, Technical University of Łódź, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland

autor

Szymczak, T.

• Department of Materials Engineering and Production Systems, Technical University of Łódź, ul. Stefanowskiego 1/15, 90-924 Łódź, Poland,

Bibliografia

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• [3] T. Szymczak, Model of coat increase on iron alloys hot dip obtained in Al-Si bath and its connection with multicomponent silumins, PhD Thesis, Technical University of Łódź, 2007 (in Polish).
• [4] S. Pietrowski, T. Szymczak, The structure of connection of alphinizing coat with silumin, Archives of Foundry 14 (2004) 20-30 (in Polish).
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• [7] S. Pietrowski: Structure of alfinizing layer on the gray cast iron, Archives of Foundry 11 (2004) 33-38 (in Polish).
• [8] S. Pietrowski, T. Szymczak, The structure of Al-Si immersing coatings on iron alloys, Archives of Foundry 12 (2004) 7-16 (in Polish).
• [9] S. Pietrowski, L. Klimek, T. Szymczak, Diffraction research of the alphinizing coat on iron alloys, Archives of Foundry 22 (2006) 22-28 (in Polish).
• [10] S. Pietrowski, T. Szymczak, The structure of the alphinizing coat on alloy steels, Archives of Foundry Engineering 8/4 (2008) 229-235.
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