Effect of Nano-sized Precipitates on Low-Carbon Steels
Author Information
Author(s): Seong B. S., Cho Y. R., Shin E. J., Kim S. I., Choi S.-H., Kim H. R., Kim Y. J.
Primary Institution: Korea Atomic Energy Research Institute
Hypothesis
How do nano-sized precipitates and boron addition affect the mechanical properties of low-carbon steels?
Conclusion
Boron addition to low-carbon steels decreases strength and improves elongation due to changes in precipitate behavior.
Supporting Evidence
- Boron addition increases the number of boron precipitates at higher hot-rolling temperatures.
- The volume fraction of fine precipitates is higher in boron-added steels compared to boron-free steels.
- Fine core-shell structured precipitates were observed in boron-added low-carbon steels.
Takeaway
Adding boron to low-carbon steel makes it stretchier but weaker because it changes how tiny particles form inside the steel.
Methodology
The study used small-angle neutron scattering, neutron powder diffraction, and particle tracking autoradiography to analyze the effects of precipitates in boron-added and boron-free low-carbon steels.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website