Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498332 | Scripta Materialia | 2015 | 4 Pages |
Abstract
The ultra-low carbon medium Mn steel was subjected to quenching and intercritical tempering process. The 650 °C tempering route led to 15% volume fraction of austenite with combination of high yield strength of 650 MPa, low yield ratio of 0.86, and excellent elongation of ∼31%. The impact energy at −20 °C was enhanced more than twenty times from 10 J to 213 J. The formation of reversed transformation austenite during the intercritical tempering process contributed to the observed superior mechanical properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jun Hu, Lin-Xiu Du, Guo-Sheng Sun, Hui Xie, R.D.K. Misra,