High-temperature mechanical properties of near-eutectoid steel |
| |
| Authors: | Jun Fu Fu-ming Wang Fang Hao Gui-xiang Jin |
| |
| Affiliation: | 1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
|
| |
| Abstract: | The high-temperature mechanical properties of near-eutectoid steel were studied with a Gleeble-1500 simulation machine. Zero strength temperature (ZST), zero ductility temperature (ZDT), hot ductility curves, and strength curves were measured. Two brittle zones and one plastic zone were found in the temperature range from the melting point to 600°C. Embrittlement in zone I is caused by the existence of liquid film along dendritic interfaces. Ductility loss in zone III mainly results from precipitates and inclusions as well as S segregation along grain boundaries. Pearlite transformation also accounts for ductility deterioration in the temperature range of 700–600°C. Moreover, the straightening temperature of the test steel should be higher than 925°C for avoiding the initiation and propagation of surface cracks in billets. |
| |
| 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 |
|
