ZL114A合金在电磁场作用下的测试技术

Testing Technique of ZL114A Alloy under Electromagnetic Fields Acting

合金经电磁处理会显著提高综合性能,且不改变原有成分、无污染、无接触、操作方便.为了寻求最佳的实验技术参数,给电磁铸造生产和科研提供一定的理论和实验依据,本文自行设计一正交的电磁场,对ZL114A合金施加作用,通过测试凝固过程实验参数、试样力学性能及显微组织,对比分析研究电磁场参数对合金凝固过程和组织性能的影响规律.结果表明:在凝固过程施加电磁场可以提高结晶温度,引起液相流动使结晶组织更均匀、晶粒度更细小;小电场与大磁场叠加,铸件会表现出更好的韧塑性,并且磁场的影响比电场要大一些.

Alloys can significantly improve the overall performance and are easy to operate,neither changes the original composition nor is polluted and contact with the body by electromagnetic treatment.In the present work we designed an orthogonal electromagnetic field that imposed on the ZL114A alloys so that we may seek the best experiments technical parameters,aiming to providing a theoretical and experimental basis for the electromagnetic casting production and researching by testing the experimental parameters of solidification process,mechanical properties and microstructure of the sample.The influence of electromagnetic parameters on the solidification process and the organizational performance is analyzed.The results show that the electromagnetic field in the solidification process can improve the crystallization temperature,generate liquid flow to make crystal structure more uniform and grain size even smaller. Moreover the casting demonstrates a better tough plastic by superposing a small electric field and a large magnetic field and the impact of the magnetic field is larger than the electric field