The Structure of the Silumin Coat on Alloy Cast Steels

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The Structure of the Silumin Coat on Alloy Cast Steels

The work presents the analysis results of the structure of the coat obtained by dipping in silumin AlSi5 of two grades of alloy cast steel: GX6CrNiTi18-10 (LH18N9T) and GX39Cr13 (LH14). The temperature of the silumin bath was 750±5°C, and the hold-up time of the cast steel element τ = 180 s. The absolute thickness of the coat obtained in the given conditions was g = 104 μm on cast steel GX6CrNiTi18-10 and g = 132 μm on GX39Cr13. The obtained coat consisted of three layers of different phase structure. The first layer from the base "g1" was constructed of the phase AlFe including Si and alloy additives of the tested cast steel grades: Cr and Ni (GX6CrNiTi18-10) and Cr (GX39Cr13). The second layer "g1" of intermetallic phases AlFe which also contains Si and Cr crystallizes on it. The last, external layer "g2" of the coat consists of the silumin containing the intermetallic phases AlFeSi which additionally can contain alloy additives of the cast steel. It was shown that there were no carbides on the coat of the tested cast steels which are the component of their microstructure, as it took place in the case of the coat on the high speed steels.

Pietrowski S., Szymczak T. (2008). The structure of the alphinizing coat on alloy steels. Archives of Foundry Engineering. 8 (4), 229-235.

Pietrowski S., Szymczak T. (2010). Alfinated coating structure on HS6-5-2 (SW7M) high speed steel. Archives of Foundry Engineering. 10 (4), 191-198.

Malkiewicz T. (1976). Metal science of iron-base alloy. Warszawa-Kraków: PWN. (in Polish).

Dobrzański L. (2006). Engineering materials and material planning. WNT: Warszawa. (in Polish).

Colombier L., Hochmann J. (1964). Steels resistant to corrosion and heat-resistant steel. Katowice: Wydawnictwo Śląsk. (in Polish).

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

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