Study on stable and meta-stable carbides in a high speed steel for rollers during tempering processes |
| |
| Authors: | Jing Guo Hong-wei Qu Li-gang Liu Yan-liang Sun Yue Zhang Qing-xiang Yang |
| |
| Institution: | 1. State Key Laboratory of Meta-stable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
2. School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
|
| |
| Abstract: | A high speed steel (HSS) was studied for rollers in this work. The steel was quenched at 1150°C and tempered at 520°C. The phase structures of the steel were determined by X-ray diffraction (XRD), and the hardness of specimens was measured. The volume fraction of carbides was counted by Image-Pro Plus software. The typical microstructures were observed by field emission scanning electron microscope (FESEM). Stable and meta-stable carbides were deduced by removing the existing phases one by one in the Fe-C equilibrium calculation. It is found that the precipitated carbides are bulk-like MC, long stripe-like M2C, fishbone-like M6C, and daisy-like M7C3 during the tempering process. The stable carbides are MC and M6C, but the meta-stable ones are M2C, M7C3, and M3C. |
| |
| Keywords: | |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《矿物冶金与材料学报》浏览原始摘要信息 |
| 点击此处可从《矿物冶金与材料学报》下载免费的PDF全文 |
|
