Mechanical and thermomechanical properties of metal spray invar for composite forming tooling
Gibbons, Gregory John and Wimpenny, D.. (2000) Mechanical and thermomechanical properties of metal spray invar for composite forming tooling. Journal of Materials Engineering and Performance, 9 (6). pp. 630-637. ISSN 1059-9495Full text not available from this repository.
Official URL: http://dx.doi.org/10.1361/105994900770345485
The subject of this paper is the assessment of the thermal and mechanical properties of Invar steel coatings, deposited using electric are spraying, and the correlation of these properties to the spray parameters and processes used to offer coatings with characteristics appropriate to the requirements of tools used in the fabrication of precision polymer matrix composite work pieces. In particular, two processing methods, inert and air atomization, and three are spray gun configurations (air cap design) were evaluated. The low coefficient of thermal expansion (CTE) properties of Invar are maintained in the spray-deposited coatings using both high velocity oxy-fuel (HVOF) and air-atomized are spraying, although HVOF coatings have significantly lower CTE and greater durability than those deposited by are spraying. The mechanical properties of the coatings are low compared to bulk Invar, regardless of the spray parameters and hardware used. Inert are spraying affords more consistent coating characteristics but this comes with a compromised durability. The spray hardware was found to be more significant in determining the coating properties than the parameters employed.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Divisions:||Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)|
|Journal or Publication Title:||Journal of Materials Engineering and Performance|
|Publisher:||Springer New York LLC|
|Official Date:||December 2000|
|Number of Pages:||8|
|Page Range:||pp. 630-637|
|Access rights to Published version:||Restricted or Subscription Access|
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