交变磁场对塑性变形后铝合金微观结构的影响

Influence of Alternate Magnetic Field on Aluminium Alloy Microstructure after Thermal Plastic Figuration

通过QJC-1强交变磁场发生器采用实验方法研究热塑性变形后,LY12铝合金试件在强交变磁场作用前后的微观组织变化。对交变磁场作用前后微观组织进行对比,分析磁处理前后铝合金X射线衍射图谱,依据交变磁场引起的磁致振动和磁致收缩效应规律,分析交变磁场导致热塑性变形后LY12铝合金组织细化的组织动力学因素。结果表明,强交变磁处理是一种有效的非热处理型处理方法,强交变磁处理使热塑性变形后金属微观组织产生交变形变,细化了金属微观组织。

The microstructure transformation situation before and after powerful alternate magnetic field treatment in LY12 aluminum alloy sample is investigated by experimental method using the powerful alternate magnetic field generator QJC-1.Microstructures are compared and the X radial diffraction patterns are analyzed.According to the magnetic vibration and shrinkage effect rule,the dynamic elements resulting in microstructure fined are analyzed on the LY12 aluminum alloy microstructure after thermal plastic figu...