×
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

Retained Austenite in 17-7PH?

Retained Austenite in 17-7PH?

Retained Austenite in 17-7PH?

(OP)
I'm looking for articles/papers on retained autenite in 17-7PH SS.  Particularly interested in articles/papers contianing photos of evidence in the microstructure.

Thanks

RE: Retained Austenite in 17-7PH?

17-7 has a very complex microstructure, in the annealed form I am certain its mostly austenitic. When heat-treated to eitehr RH or TH conditions I would expect that the structure still contains significant austenite.

Also I'd expect convesely that CH condition material is completely martensitic.

Nick
I love materials science!

RE: Retained Austenite in 17-7PH?

I just took a look at some old 17-7 CH900 micros I had and there is perhaps 10-15% of a lighter etching phase. If memory serves me correct, this is delt ferrite.

RE: Retained Austenite in 17-7PH?

Thanks, I did start a bit of research into 17-7, but working in a more production environment stalled the research, all the samples are ready an labled, but I never really was able to start the next steps. Ugh..

RE: Retained Austenite in 17-7PH?

Retained austenite seems to be everywhere !! It can be found in low carbon martensite and even bainite ! Now that we can get to 1,000,000X we can see lots of things like G-P zones and dislocations !

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