Effect of the laser fusion of electrometallized coatings of the Fe-Cr-B-Al system on their corrosion resistance |
| |
Authors: | H Pokhmurs’ka N Chervins’ka M Student Kh Zadorozhna |
| |
Affiliation: | (1) Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv |
| |
Abstract: | We studied the effect of laser treatment of electric arc coatings produced of powder wires of the Fe-Cr-B system on the changes
in their structure, electrolytic potential, and polarization currents. We additionally introduced aluminum, nickel, and copper
to the charge of these coatings. Laser treatment was realized by means of Nd: YAG laser radiation. We have shown that the
addition of a small amount of these elements to the coating under study in different ways affects the character of formation,
structure, and electrochemical characteristics of the fused layer. In particular, copper and nickel additions increase the
fluidity of the coating. The parameters of laser treatment affect strongly the uniformity of the distribution of elements
in the fused zone. In the case of alloying with copper, the nonuniformity of their distribution is more pronounced, which
can exert a slight negative influence on the corrosion characteristics of the coating. Aluminum addition improves the corrosion
resistance of laser-modified coatings.
__________
Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 42, No. 6, pp. 106–110, November–December, 2006. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|