| Related citation: | Shu-Hua Sun,Bo Wang,Zhen-Hua Wang,Yang Gao,Ming-Wei Guo,Wan-Tang Fu.Phase and CCT Diagram of an N-Containing 8％Cr Roller Steel[J].Journal of Harbin Institute Of Technology(New Series),2013,20(6):112-117.DOI:10.11916/j.issn.1005-9113.2013.06.016. |
|
| Author Name | Affiliation | | Shu-Hua Sun | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | | Bo Wang | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | | Zhen-Hua Wang | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | | Yang Gao | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | | Ming-Wei Guo | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | | Wan-Tang Fu | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China |
|
| Abstract: |
| The pseudo-equilibrium phase diagram and continuous cooling transformation diagram of an N-containing 8％Cr roller steel were investigated by using thermodynamic calculation, differential scanning calorimetry, X-ray diffraction, expansion method, and so on. Under equilibrium conditions, the main carbonitrides are MX, M7C3, and M23C6 types. The measured Ac1, Ac3, start temperature of martensitic transformation, and M7C3 transformation temperatures are 1,5, 324, and 1100 ℃, respectively. Bainite appears at cooling rates ranging from 0.5 to 5 ℃/s and ferrite forms at grain boundaries at a cooling rate lower than 0.5 ℃/s. Finally, the effects of adding N and lowering the C content on workability and mechanical properties of common 8％Cr steel were discussed. |
| Key words: high Cr roller steel phase diagram continuous cooling transformation N alloying |
| DOI：10.11916/j.issn.1005-9113.2013.06.016 |
| Clc Number:TG142.45 |
| Fund: |
