JOURNAL OF THE JAPAN WELDING SOCIETY
Online ISSN : 1883-7204
Print ISSN : 0021-4787
ISSN-L : 0021-4787
Influence of TiO2 or Ilmenite Content in the SiO2 Saturated Coating of Electrode on Weld Metal
H. SekiguchiI. Masumoto
Author information
JOURNAL FREE ACCESS

1956 Volume 25 Issue 1 Pages 3-8

Details
Abstract

From the point of view concerning the equilibrium between molten iron and slag deposited with electrode, we studied the influence of TiO2 or ilumenite, in the FeO-MnO-SiO2 coating saturated with SiO2, on weld metal obtained. Especially, effects on its total silicon content, manganese content and quantity of inclusions were researched. The total silicon content of weld metal increases and the total manganese content decreases with the increase of TiO2 or ilumente content of coating.
The increase of silicon content results the decrease of oxygen content and total quantity of inclusions of weld metal. Accordingly, it was observed by a microscope with 400 magnification that the quantity of inclusions decreases with the increase of TiO2 or ilmenite content. But on the case of microscopic examination with 1200 magnification the reverse tendency was observed. That is, the higher dispersion of fine glassy inclusions was recognized on the matrix of weld metal with the increase of TiO2 or ilumenite content of coating.

Content from these authors
© by JAPAN WELDING SOCIETY
Next article
feedback
Top