Badania porównawcze napawanych plazmowo warstw niklowych z węglikami Ti i Cr

Mariusz Bober, Jacek Senkara

Abstrakt


W artykule przedstawiono wyniki badań struktury kompozytowych powłok na osnowie stopu NiSi2B z dodatkiem węglików Ti i Cr, napawanych plazmowo z mieszaniny proszków na podłoża ze stali niskostopowej. Określono udział i rozmieszczenie fazy umacniającej w osnowie. Wykazano, iż odmienny charakter oddziaływania węglików Ti i Cr z ciekłym stopem Ni wpływa istotnie na proces formowania się napoin kompozytowych oraz na rozmieszczenie i udział cząstek fazy umacniającej w matrycy.

Plasma surfaced nickel layers with chromium and titanium carbides – comparative research 

Abstract

The results of structure investigation of composite layers based on NiSi2B alloy with Cr and Ti carbides dopands are presented in the article. The layers were previously deposited by plasma powder transferred arc welding method onto low alloy steel substrates. The content and distribution of strengthening phase particles in the layer’s matrix were determined. It was proved that formation of composite overlays along with refractory particles distribution are significantly affected by Ti and Cr carbides interaction of different character with liquid nickel alloy. 


Słowa kluczowe


napawanie plazmowe; napawanie kompozytów; kompozyt; powłoki kompozytowe

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Bibliografia


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DOI: http://dx.doi.org/10.26628/wtr.v83i9.507

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