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!

*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

Ti 6Al-4V low service temperature

Ti 6Al-4V low service temperature

Ti 6Al-4V low service temperature

Does any have information about what the lowest service temperature for Ti 6Al-4V spring temper material is?

RE: Ti 6Al-4V low service temperature

As far as I know, nothing limits its use even down to cryogenic temperature, i.e. it does not have a brittle-ductile transition like some steels. Some of the more exotic alloys do get brittle at low temps, though. It should not be used in the presence of liquid oxygen, as it can readily burn if cut/scratched/banged.

see http://www.dtic.mil/dtic/tr/fulltext/u2/a951335.pd...

RE: Ti 6Al-4V low service temperature

There is some data on fatigue strength of Ti-6Al-4V, both regular and ELI (Extra Low Interstitial) flavors, at cryogenic temperatures in Materials Properties Handbook - Titanium Alloys by Boyer, Collings, & Welsch (published by ASM International, 1994). There is no fatigue limit with this alloy, as subsurface initiation occurs at > 106 cycles. That doesn't mean it isn't suitable for use, just that you need to understand the loading conditions and relevant number of cycles. As btrueblood noted, there is no abrupt embrittlement phenomena to be concerned about.

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! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close