| 崔海涛,董旭光,邵忠财.Fe-20Mn-4Si-2Al高锰钢热加工性能研究[J].装备环境工程,2018,15(4):1-4. CUI Hai-tao,DONG Xu-guang,SHAO Zhong-cai.Hot Deformation Behaviors of Fe-20Mn-4Al-2Si High-manganese Steel[J].Equipment Environmental Engineering,2018,15(4):1-4. |
| Fe-20Mn-4Si-2Al高锰钢热加工性能研究 |
| Hot Deformation Behaviors of Fe-20Mn-4Al-2Si High-manganese Steel |
| 投稿时间：2018-01-09 修订日期：2018-04-15 |
| DOI：10.7643/ issn.1672-9242.2018.04.001 |
| 中文关键词: 热变形 微观组织 动态再结晶 高锰钢 |
| 英文关键词:hot deformation microstructure dynamic recrystallization high-manganese steel |
| 基金项目:辽宁省教育厅一般项目（L2015456） |
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| 中文摘要: |
| 目的 研究Fe-20Mn-4Si-2Al高锰钢在850～1050 ℃，不同应变速率条件下的热变形行为。方法 将实验钢锭热轧成10 mm厚板材，然后取样在MMS-300多功能热模式试验机上进行单轴热压缩实验。根据获取的应力-应变曲线及微观组织演变规律，系统研究Fe-Mn-Si-Al系高锰钢的热变形行为。结果 应变速率是影响Fe-Mn-Si-Al系高锰钢热变形行为的关键因素。在热变形过程中，应变速率越低，Fe-20Mn-4Si-2Al高锰钢越容易发生动态再结晶。获得了实验钢的表观应力指数n=3.10，热变形激活能Q=412.151 kJ/mol，并建立了热加工方程。结论 当参数Z≤8.351×1017时，Fe-20Mn-4Si-2Al高锰钢热加工性能较好。 |
| 英文摘要: |
| Objective To research hot deformation behaviors of Fe-20Mn-4Si-2Al high-manganese steel at 850 to 1050 ℃ and different strain rates. Methods Steel ingot for experiment was hot-rolled into 10 mm thick plate. Then it was sampled to carry out uniaxial hot compression test with MMS-300 multifunctional hot mode tester. Hot deformation behaviors of Fe-Mn-Si-Al high-manganese steel were investigated systematically based on the obtained stress-strain curve and evolvement rules of microstructure. Results Strain rate was the key factor that affected hot deformation behavior of Fe-Mn-Si-Al high-manganese steel. The dynamic recrystallization was likely to take place at low strain rate in hot deformation. The apparent stress exponent and the apparent activation energy of the specimens were 3.10 and 412.151 kJ/mol, respectively. The hot working equation of the tested steel was established. Conclusion The dynamic recrystallization was prone to occur when Z≤8.351×1017, and better hot deformation properties of Fe-20Mn-4Si-2Al high-manganese steel could be obtained under this condition. |
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