|
| Effect of As on hot ductility of C-Mn steel containing As and Cu |
|
Received:January 05, 2021
Revised:January 22, 2021
Accepted:February 02, 2021
Published Online:October 11, 2021
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:residual elements; As; hot ductility; proeutectoid ferrite; grain boundary segregation |
| Author | Institution |
| MENG Qingyang |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
| XIN Wenbin |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
| ZHANG Jing |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
| LIANG Yuyu |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
| JIANG Yinju |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
| DENG Yongchun |
Inner Mongolia University of Science and Technology,Baotou,Inner Mongolia |
|
| Hits: 2355 |
| Download times: 1074 |
| Abstract: |
| In order to investigate the effect of residual element As on hot ductility of the steel containing Cu and As, the high temperature hot tensile behavior of C-Mn steel with 0.22 wt% Cu and different content of As in the temperature range of 700~1100 ℃ was studied by Gleeble-3800 thermal simulation machine. The results showed that the temperature range of brittleness range of steel became wider and the upper limit temperature of brittleness range moved to the higher temperature direction with the increase of As content in the steel from 0 wt% to 0.09 wt%. The analysis of fracture morphology and microstructure indicated that the existence of As inhibited the formation of proeutectoid ferrite in the ferrite and austenite two-phase region in the temperature range of 700~800 ℃. It resulted in the formation of the thinner film-like proeutectoid ferrite in the steel and thus worsened the hot ductility of the steel. In the temperature range of 850~1100 ℃, the deterioration of ductility was mainly due to the segregation of As at austenite grain boundary. |
| Close |
|
|
|