The fundamental problems of ZA27 alloy squeeze casting with high ratio of height to thickness were studied in this paper.
本文主要研究了大高径比ZA27合金铸件挤压铸造过程的若干基本问题。
Both the ratio of friction velocity to free stream wind velocity and the thickness of airflow are subject to the sidewall effect, showing the increase trend with the decreasing aspect ratios.
随着风洞宽高比的减小，断面内中垂线上的气流摩阻速度与自由流速的比值以及受风洞边壁影响的气流厚度均增大。
With decreasing the film thickness, both the dislocation spacing and the ratio of the dead layer to film total thickness increase.
随着薄膜厚度的减小，位错间距增大，“死层”厚度与薄膜总厚度之比增加。
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