The shearing characteristics associated with equal-channel angular pressing
The shearing characteristics associated with equal-channel angular pressing
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DOI：
10.1016/s0921-5093(98)00750-3
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发表时间：
1998-12
期刊：
影响因子：
6.4
通讯作者：
M. Furukawa;Y. Iwahashi;Z. Horita;M. Nemoto;T. Langdon
中科院分区：
文献类型：
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作者：
M. Furukawa;Y. Iwahashi;Z. Horita;M. Nemoto;T. Langdon
双通道角挤压（ECA）是一种用于将超细晶粒尺寸引入材料中的加工方法。在实践中，这是一个程序，可用于实现高总应变通过经受样品重复压制。有实验证据表明，在ECA压制的微观结构演变的性质取决于样品是否在通过模具的每个通道之间旋转。本文研究了六种不同工艺路线下ECA挤压的剪切特性，并得出了有关最佳工艺过程和织构发展的结论。
Equal-channel angular (ECA) pressing is a processing method for introducing an ultra-fine grain size into a material. In practice, it is a procedure that may be used to achieve high total strains by subjecting a sample to repetitive pressings. There is experimental evidence showing that the nature of the microstructural evolution in ECA pressing depends upon whether the sample is rotated between each passage through the die. This paper examines the shearing characteristics associated with ECA pressing for six different processing routes and reaches conclusions concerning the optimum processing procedure and the development of texture.