在铸轧过程中同时施加超声场和电磁场制备了铅合金板带，研究了复合能场对铸轧铅合金板带显微组织和力学性能的影响。结果表明：在铅合金铸轧过程中加入超声和电磁复合能场后，铅合金板带的显微组织更加均匀，枝晶被打碎，晶粒更加细化；与普通铸轧铅合金板带相比，复合能场铸轧铅合金板带的力学性能得到显著提高，其抗拉强度提高了12．42％，屈服强度提高了29．17％，伸长率提高了24．16％，硬度提高了1．79／6，铅合金板带的各向异性得到了改善。
Lead alloy strips were cast-rolled in the combined ultrasonic and electromagnetic field, and the effects of combined ultrasonic and electromagnetic field on microstructure and mechanical properties of cast-rolled lead alloy strip were investigated. The results show that the microstruetures of cast-rolled lead strips became more homogeneous, the cellular dendrites were broken and the refined grains could be observed in the microstrueture of the lead alloy strips cast-rolled in the combined ultrasonic and electromagnetic field. Compared with the general cast- rolled lead strip, the mechanical properties of the combined energy field cast-rolling lead strip increased significantly. The tensile strength, yield strength, elongation and hardness of the combined energy field cast-rolling lead strip increased by 12.42%, 29. 17%, 24. 16% and 1.70/oo respectively, and the anisotropy of lead alloy strip was improved as well.
参考文献
| [1] | 李建平,张家富,毛大恒,李婷.水平式双辊连续铸轧铅合金板的试验研究[J].华中科技大学学报（自然科学版）,2010(10):96-99. |
| [2] | Ramirez A;Qian M;Davis B;Wilks T;StJohn DH .Potency of high-intensity ultrasonic treatment for grain refinement of magnesium alloys[J].Scripta materialia,2008(1):19-22. |
| [3] | 李光,张阳,李喜孟,冯伟骏.Pb-Sn合金在功率超声场中的凝固过程研究[J].铸造技术,2006(04):374-377. |
| [4] | 李建平,胡建冰,毛大恒,赵冠中.超声波辅助铸轧AZ31镁合金板带的实验研究[J].华中科技大学学报（自然科学版）,2010(12):126-128,132. |
| [5] | Da-heng MAO;Guan-zhong Zhao;Jian-ping Li .Effect of Composite Energy-field on Microstructure and Properties of AZ31B Magnesium Roll-casting Alloy Sheet[J].Materials Science Forum,2011(TN.686):46-52. |
| [6] | C. S. Lakshmi;J. E. Manders;D. M. Rice .Structure and properties of lead-calcium-tin alloys for battery grids[J].Journal of Power Sources,1998(1):23-29. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%