Cobalt Base Clad Layer Resistance on the Corrosion under Low Sulfur Pressure

Hanna Smolenska

doi:10.4028/www.scientific.net/SSP.165.173

Paper Titles

Steel Strips Flattening in Ball Rolling Mill
p.153

Polymer-Surface Modification with a-C:N:H Layers Plasma Chemically Deposited in RF CVD and MW CVD Systems
p.159

The Characteristic of Surface Layers on Austenitic Stainless Steel after Glow-Discharge Nitriding Process
p.165

The Effect of Fabrication Method of Cobalt Base Clad Layer on Air Oxidation
p.169

Cobalt Base Clad Layer Resistance on the Corrosion under Low Sulfur Pressure
p.173

The Influence of Plastic Strain on the Corrosive Properties of Plasma Sprayed Intermetallic NiAl and Ni₃Al Coatings
p.177

The High Cyclic Failure Analysis of Welded Joints of CT Specimens
p.183

Influence of Cavitation Intensity on the Relative Cavitation Resistance of Laser Processed C45 Carbon Steel
p.189

Cavitation Erosion Resistance of Austenitic Microstructure Created by Laser Beam
p.195

HomeSolid State PhenomenaSolid State Phenomena Vol. 165Cobalt Base Clad Layer Resistance on the Corrosion...

Cobalt Base Clad Layer Resistance on the Corrosion under Low Sulfur Pressure

Abstract:

The paper considers the sulphidation of the clad layers made of the cobalt base powder and prepared by the multi-overlapped tracks and sublayers fabricated using laser cladding process applied at 800°C under sulphur partial pressure ps2= 10e-8 atm and ps2= 10e-10 atm for 24 hours. The phase compositions of the scale were different. In both cases changes in the layer under the scale exhibited similar tendency – decomposition of the carbides from the interdendritic regions and severe internal corrosion along the dendrite boundaries.

You might also be interested in these eBooks

Mechatronic Systems and Materials: Materials Production Technologies

View Preview

Info:

Periodical:

Solid State Phenomena (Volume 165)

Pages:

173-176

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.165.173

Citation:

Cite this paper

Online since:

June 2010

Authors:

Hanna Smolenska

Keywords:

Cobalt Alloy, Scale, Sulfidation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. Mrowec: The problem of Sulfur in High-Temperature Corrosion. Oxidation of Metal, Vol. 44, No. 1/2 (1995), pp.177-209.

Google Scholar

[2] K. Natesan, R.N. Johnson: Development of Coatings with Improved Corrosion Resistance in Sulfur-Containing Environments. Presented at the 17th International Conference on Metallurgical Coatings, San Diego, CA, April 2-6, (1990).

DOI: 10.1016/b978-1-85166-813-7.50084-x

Google Scholar

[3] B. Gleeson: Alloy degradation under oxidizing-sulphidizing conditions at elevated temperatures. Materials Research, Vol. 7, No. 1 (2004).

Google Scholar

[4] Z. Grzesik, S. Mrowec: Microthermogravimetry in studying the defect and transport phenomena in transition metal sulphides. Solid State Ionics, Vol. 154-155 (2002), pp.93-100.

DOI: 10.1016/s0167-2738(02)00468-x

Google Scholar

[5] Z. Grzesik: On the defect diffusivity in Co9-xS8. Solid State Ionics, Vol. 141-142 (2001), pp.295-299.

DOI: 10.1016/s0167-2738(01)00764-0

Google Scholar

[6] M. A. Harper, J. P. Cotner: Mixed Sulphidation/Carburization Attack on Several HeatResistant Alloys at 900°C. Oxidation of Metals, Vol. 53, No. 5/6 (2000).

Google Scholar

[7] S. Mrowec, M. Danielewski, A. Wójtowicz: Sulphidation of cobalt at high temperatures. Journal of Materials Sciences, Vol. 33 (1998), pp.2617-2628.

DOI: 10.1023/a:1004313504810

Google Scholar