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-----Improve abrasive wear resistance on 17-4ph?
2007
Hello.
I have started my summer job and got a plate to improve life on.
It's gliding on an UHMWPE, plastic, rail and is getting worn by what I identify as three-body abrasion.
They are now using an 304 grade steel with a little cold work.
I am thinking of using a 17-4PH grade instead in H900 condition.
And I am wondering if I should do something with the surface.
It has to be relatively cheap.
Thanks for help.
engineer - Halmstad, Halland, Sweden
2007
3 body wear? Is there an external source of particles? Can they be excluded?
Possibilities:
Lubricate.
Hardening the surface may work. H900 17-4PH is significantly harder than mildly worked 304. But the new material may not be as resistant to corrosion and is also prone to stress corrosion in certain environments.
Or a surface treatment of the 304, for instance nitriding, might decrease the wear to an acceptable level.
Hope this is of some assistance.
Paul Tibbals, P.E.
gas & electric
San Ramon, California, USA
(My opinions are not related to nor a statement of my employer's)
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