Loading...
Please wait, while we are loading the content...
Similar Documents
Effect of Microstructure in Hot Rolled Steel on the Formation of Retained Austenite and Mechanical Properties in Cold Rolled and Annealed Steel Sheet
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, H. C. Tomokiyo, Kenji Era, Hidenori Shimizu, Mineo |
| Copyright Year | 1989 |
| Abstract | Synopsis : The carbide distribution prior to cold rolling was studied to know its effect on mechanical properties with respect to retained austenite (ƒÁR) in 0.2%C-1.4%Si-1.0%Mn-0.05%P steel cold rolled and intercritically annealed and isothermally held at bainitic transformation temperature. The microstructures after final heat-treatment were of ferrite, ƒÁR, bainite and/or martensite. In general, the steel with prior ferrite/pearlite structure (FP steel) gave more amount of ƒÁR and better mechanical properties such as strength, elongation, etc. than that with prior ferrite/cementite one (FC steel). The excellent mechanical properties in FP steel were based on a large amount of ƒÁR which transforms to martensite during deformation, giving rise to a high work hardening rate. The experimental results also showed that an increase in intercritical annealing temperature and/or time brought about a similar amount of ƒÁR in FC steel as in FP steel. However, FP steel still exhibited a superior elongation compared with FC steel. The reason for this is that the former contained a relatively large amount of small (about 2 ƒÊm) ƒÁR with stacking fault which would originate from fine cementites prior to cold rolling. It was concluded that the mechanical properties were strongly affected not only by the amount of ƒÁR but also by the ƒÁR size and configuration. |
| Starting Page | 626 |
| Ending Page | 633 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.2355/tetsutohagane1955.75.4_626 |
| Volume Number | 75 |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/tetsutohagane1955/75/4/75_4_626/_pdf/-char/en |
| Alternate Webpage(s) | https://doi.org/10.2355/tetsutohagane1955.75.4_626 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
