Why Do Metals Like Fe-C Show Upper and Lower Yield Points?

Click For Summary
SUMMARY

Fe-C alloys, specifically ferrite and austenite, exhibit upper and lower yield points due to their unique microstructural characteristics and phase transformations. The upper yield point corresponds to the onset of plastic deformation, while the lower yield point indicates a transition to uniform deformation. Substitutional solid solutions can indeed form in Fe-C metals, allowing for variations in mechanical properties and phase stability.

PREREQUISITES
  • Understanding of phase diagrams, particularly for iron-carbon (Fe-C) systems
  • Knowledge of microstructure and mechanical properties of metals
  • Familiarity with solid solution strengthening mechanisms
  • Basic principles of plastic deformation in materials science
NEXT STEPS
  • Research the Fe-C phase diagram and its implications for alloy design
  • Study the mechanisms of solid solution strengthening in metals
  • Explore the effects of temperature and composition on yield points in Fe-C alloys
  • Investigate the role of microstructure in the mechanical behavior of ferrite and austenite
USEFUL FOR

Materials scientists, metallurgists, and engineers involved in alloy development and mechanical property optimization of iron-carbon systems.

aero&astro
Messages
18
Reaction score
0
Why do Fe-C and other metals exhibit upper and lower yield points?

And also can you get substitutional solid solution in any Fe-C metals, like ferrite, austenite etc?
 
Engineering news on Phys.org
Last edited by a moderator:
I need to anneal 5052 aluminum for a home project. Google has given me mixed results on how to do this. Short version is that I'm doing some heavy forming on a piece of 5052-H32 and I'm running into issues with it work hardening. I've tried the Sharpie trick with a propane torch. But I'm not sure this is doing anything. I'm also seeing conflicting opinions whether to quench or air cool. So I'm looking for some expert opinions. (Oven heating is not an option due to size.) Thanks. edit: The...

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 9 ·
Replies
9
Views
4K
Replies
19
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
Replies
1
Views
5K
Replies
12
Views
5K