SMEAR / PULL OUT
03-07-2013, 02:51 PM, (This post was last modified: 03-07-2013, 02:53 PM by Justin.)
#1
SMEAR / PULL OUT
Dear all

Is anyone able to describe how to identify SMEAR / PULL OUT when evaluating a mount?

It is nice to explain both via micrographs. Ashamed0002

Thanks.

Justin
Reply
03-07-2013, 06:46 PM,
#2
RE: SMEAR / PULL OUT
Hi Justin

It is extremely difficult to identify SMEAR / PULL OUT when evaluating thermal spray coatings.

A very useful tool is to impregnate the coatings with epoxy resin prior to mounting. This tends to stop smearing over of the epoxy filled porosity sites and with the more friable coatings adds strength and reduces pull-out.
Reply




Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd