The erosion of steel surfaces by grit-blasting as a preparation for plasma spraying

The erosion of steel surfaces by grit-blasting as a preparation for plasma spraying

Grit-blasting is commonly used for preparing surfaces for spraying plasma coatings. However, pretreatment by grit-blasting is performed in an empirical and qualitative manner which is often inadequate in the context of modern manufacturing. This paper describes how grit-blasting can be monitored on-...

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Bibliographic Details
Published in:Wear Vol. 194; no. 1; pp. 95 - 102
Main Authors: Griffiths, Brian J., Gawne, David T., Dong, Guishu
Format: Journal Article
Language:English
Published: Lausanne Elsevier B.V 01-06-1996
Amsterdam Elsevier Science
New York, NY
Subjects:
Applied sciences
Cleaning. Degreasing. Pickling
Exact sciences and technology
Grit-blasting
Metals. Metallurgy
Plasma spraying
Production techniques
Surface roughness
Surface treatment
Plasma spraying
Grit-blasting
Surface roughness
Plasma
Roughness
Carbon steel
SEM
Pretreatment
Experimental study
Spray coating
Texture
Blast cleaning
Surface treatment
Erosion
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Description
Summary:Grit-blasting is commonly used for preparing surfaces for spraying plasma coatings. However, pretreatment by grit-blasting is performed in an empirical and qualitative manner which is often inadequate in the context of modern manufacturing. This paper describes how grit-blasting can be monitored on-line using roughness parameters to specify the surface finish required. The mechanics of grit-blasting are presented in the context of surface roughening. Three classes of roughness parameters are identified and parameters typical of these are related to the surface transformations which occur during grit-blasting erosion. The centre-line average roughness parameter ( R a) is shown to be the best for on-line condition monitoring.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0043-1648
1873-2577
DOI:10.1016/0043-1648(95)06798-1