Discussion about double-jet process of DSM11 Ni-based superalloy
LIU Jin-min1�� 2��LIU Xiao-guang1��FENG Hui1
��1. Department of Analysis and Testing�� Institute of Metal Research�� Chinese Academy of Sciences�� Shenyang 110016�� China 2. School of Materials Science and Engineering�� Shenyang University of Technology�� Shenyang 110870�� China��
Abstract��The process parameters of double-jet electrolytic thinning process�� such as voltage�� electrolyte temperature�� and light penetration threshold�� were designed systemically according to the inflection point in the voltage-current density curve of DSM11 superalloy. The transmission electron microscope ��TEM�� and light microscope were chosen to evaluate the thin foils of the samples. Based on that�� the parameters for improving the DSM11 superalloy TEM sample were finally obtained. The influences of voltage�� electrolyte temperature and light penetration threshold variation on the foils quality were discussed. Additionally�� the film morphology and cause were analyzed on the condition of different quality TEM samples.
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