Interface behavior of tungsten coating on stainless steel by electro spark deposition

Autor: Wang Yuangang, Ma Honggang, Li Xiaopeng
Jazyk: English<br />French
Rok vydání: 2015
Předmět:
Zdroj: MATEC Web of Conferences, Vol 35, p 01006 (2015)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/20153501006
Popis: A new method of electro spark deposition method was put forward, which was based on the theory of electro spark deposition by changing the polarity in the liquid. Tungsten coating layers was produced on surface of Stainless Steel by electro spark deposition. The micro hardness, microstructure, chemical composition and phases of the coating layer were examined by means of hardness test, scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) analysis. The results showed that there was tungsten coating in the surface, which was discontinuous. Microhardness of the coating layer was about 3 times more than that of the substrate. The combination between coating layer and substrate was metallurgical bond.
Databáze: Directory of Open Access Journals