RT Journal Article
ID 2d6ad94b51d0e50b
A1 Pech, J. 
A1 Hannoyer, B.
A1 Lagnoux, O. 
A1 Denoirjean, Alain 
A1 Fauchais, Pierre
T1 INFLUENCE OF PREHEATING PARAMETERS ON THE PLASMA-JET OXIDATION OF A LOW-CARBON STEEL
JF High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
JO HTM
YR 2011
FD 2012-03-20
VO 15
IS 1
SP 51
OP 60
K1 dc plasma jet
K1 preheating
K1 oxidation
K1 low-carbon steel
K1 Mossbauer spectroscopy
AB The adhesion/cohesion (A/C) of coatings onto metallic substrates is an important property for most service conditions. Preheating the substrate before spraying the powder is a way to improve its A/C. It results in a surface oxidation of the substrate due to the high temperature of the gas close to the substrate surface and consequently to the high level of atomic oxygen. This study is devoted to the estimation of the influence of this oxide layer onto the A/C values. A precise monitoring of the preheating process by presetting values of the heating rate, temperature level, and heating time allows producing oxide layers with controlled composition and thickness. In the studied case of low carbon steel a specific choice in the heating rate and temperature leads to the production of an oxide layer with a low or high content of hematite layers in a duplex layer of hematite and magnetite iron oxides.
PB Begell House
LK https://www.dl.begellhouse.com/journals/57d172397126f956,3163f759560dc3ff,2d6ad94b51d0e50b.html