FERROGRAPHY AND ITS APPLICATION IN THE MAINTENANCE OF AIRCRAFT PROPULSION SYSTEMS

Authors
  1. Waggoner, C.A.
  2. Dominique, H.P.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
The principles of ferrography are reviewed and examples of diverse applications to aircraft propulsion machinery are presented. Two attributes of the method, superior wear debris detection sensitivity and the ability to identify mechanical wear modes, provide improved diagnostic capability in failure detection and prevention in gas turbine engines and in failure analysis of engines and transmission gearboxes. Experience suggests that ferrography is most readily adaptable to machinery condition monitoring as a complement to existing methods and in selective applications were reliability is critical, and that a primary role of the method will continue to be in mechanical failure diagnosis and wear research.
Report Number
MATERIALS-78-F —
Date of publication
15 Dec 1978
Number of Pages
22
DSTKIM No
79-01033
CANDIS No
85388
Format(s):
Hardcopy;Originator's fiche received by DSIS

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