| 变形温度对细晶高强IF钢应力-应变曲线及显微组织的影响 |
| |
| 引用本文： | 张小强,;乔立峰,;张红梅,;王国栋.变形温度对细晶高强IF钢应力-应变曲线及显微组织的影响[J].鞍山钢铁学院学报,2008(6):570-574. |
| |
| 作者姓名： | 张小强 ;乔立峰 ;张红梅 ;王国栋 |
| |
| 作者单位： | [1]辽宁科技大学材料科学与工程学院,辽宁鞍山114051; [2]鞍山钢铁公司第三炼钢连轧厂,辽宁鞍山114002; [3]东北大学轧制及连轧自动化国家重点实验室,辽宁沈阳110002 |
| |
| 摘 要： | 以细晶高强IF钢为研究对象，在东北大学轧制技术及连轧自动化国家重点实验室MMS-300热力模拟实验机上，测定了在变形速率为10s^-1，真应变为0．5，变形温度分别为750、800、850、900、950、1000℃时的应力应变曲线。通过实验发现，钢的应力应变曲线为动．态回复型，不随温度而变化；流变应力随着变形温度的增加而下降；通过显微组织观察发现，随变形温度的降低，晶粒变细。
|
| 关 键 词： | 细晶高强汽车板 热模拟 再结晶 应力应变曲线 |
Effect of deformed rate on strain-stress curve and microstructure for fine-grain and high strength IF steel |
| |
| Affiliation: | ZHANG Xiao-qiang , QIAO Li-feng, ZHANG Hong-mei, WANG Guo-dong (1. School of Materials Science and Engineering, University of Science and Technology Liaoning,Anshan 114051, China; 2. No. 3 Steel-making and Continuous Rolling Plant,Anshan 114002,China; 3. The State Key Laboratory of Rolling and Automatic, Northeastern University, Shenyang 110006, China ) |
| |
| Abstract: | Taken the fine-grain and high-strength IF steel as the study object, the strain-stress curves were carried out on MMS-300 thermal mechanical simulator with the deformation temperature at 750,800,850, 900,950,1 000 ℃respectively. Under the strain rate 10 s^-1, the true strain amount was 0.5. The single pass compression test showes that the mode of the stress-strain curves is dynamic recovery without changing with deformation temperature; deformation resistance decreases with the increasement of deformation temperature when strain rate and strain amount are constant for the fine-grain and high strength IF steel; the deformation temperiature is lower, ferrite grain is fine. |
| |
| Keywords: | fine-grain and high-strength IF steel thermal simulation recrystallization strain-stress curve |
| 本文献已被 维普 等数据库收录！ |
|
