×
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

surface carbon content test

surface carbon content test

surface carbon content test

(OP)
Hello,

Does anyone know, for determining surface %carbon of a carburized sample (dia 1", length 6") - spectral analyze-, what is the influence of sample condition? I mean hardened or not, after carburizing.

Could have any influence at spectral analyze?

Thanks.

RE: surface carbon content test

Two methods used routinely -
1) machine off a layer approximately 0.005-inch to 0.010-inch thick using a clean lathe - collect the sample material and use a LECO carbon analyzer.
2)Use a spectrograph direct on surface - in this case the laboratory has to be very experienced in carbon analysis and the curved surface of a 1-inch diameter sample will be a big problem, it might be better to use this technique on the end of the bar.
I don't believe there will be any difference between the values obtained on an as-carburized or a quenched sample. If the machining technique is used to provide sample material for a LECO, then turning the test sample is much easier as-carburized.

RE: surface carbon content test

With a non hardened suface, you could apply, lever rule, by phases measures.

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