×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Cladding for abrasion resistance

Cladding for abrasion resistance

Cladding for abrasion resistance

(OP)
First, given the choice between inconel and tungsten carbide which would be a better choice for longevity?

Second, any other choices to consider?

Either would be clad to 316SS.

TIA

Steven C
Senior Member
ThirdPartyInspections.com

RE: Cladding for abrasion resistance

What environment will the hard facing or weld overlay be exposed to and in what specific application?

Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
 

RE: Cladding for abrasion resistance

If there is much corrosion you may favor the Ni based alloys.
I assume that you are talking about a flame spray or HVOF type of coating.
One problem with carbide on SS is that you will  need a high binder level so that you have some 'give' to the coating since the substrate is so soft.  You also need to use a Ni or mixed alloy binder rather than Co for corrosion resistance.
If these are big heavy parts that can be weld overlayed then I would also consider a Stellite type of coating.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Cladding for abrasion resistance

   In general, again general, Inconel (you don't state which one the 2 dozen Inconel alloys) has poor pure abrasion resistance when compared to tungsten carbide, which is true hard surface.  Inconel 725 can be heat treated to fairly high hardness and give both corrosion and good, but not great, wear resistance.
    When you say clad, do you mean weld overlay or thermal flame spray?  You can clad Inconel plate, but there is no tungsten carbide plate to clad.
    You can easily flame spray tungsten carbide over Type 316L sst without a more ductile inner layer.
    If you need corrosion resistance and hardness, I recommend you try Ultimet or Tribacor alloys applied via weld overlay.
    Bottom line, you need to better define what you need before an good answer can be given.
 

RE: Cladding for abrasion resistance

This is almost a 'how high is up' question.  The OP hasn't stated what it is that is affecting longevity that the cladding is to resist.  Quickly the mind goes to the possibility of cladding for fan blades, duct-work, hopper bottoms, pipe, tubeheets, boiler tubes, pulverizer mill parts, coal burner nozzles, just to name a few.  There are companies whose whole existence is "cladding are us" and some are so specialized that they don't even compete in the same markets.

I think we need more specificity here in order to give a coherent answer.

rmw

RE: Cladding for abrasion resistance

Consider one of the Stellite hard surfacing alloys.

RE: Cladding for abrasion resistance

(OP)
sorry for not getting back sooner.
now it looks like cladding is out, based on some of your comments and a little side research, and consideration for alternate base material is being considered.

stellite is not a contender for the design.  the design is proprietary and am now waiting to see what the design owner comes up with.

this has been a learning experience for me and you guys are great for offering your expertise.

thanks

Steven C
Senior Member
ThirdPartyInspections.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources