Abstract
In this paper, transformation matrices are established to describe the orientation transformation of the planes and directions in a sample during multi-pass equal channel angular pressing (ECAP) processing. From this basis, the shearing characteristics associated with multi-pass ECAP processing in different processing routes are analyzed, and a new ECAP route expected to be more effective for grain refinement and particle redistribution is proposed. With the aid of transformation matrix analysis, it is demonstrated that route B C involves a redundant strain process and, hence, is not very effective for particle redistribution but is useful for grain refinement. The experimental results prove that the new proposed ECAP route, called route B C-UD2, is more successful for both grain refinement and particle redistribution. The established transformation matrix analysis method is helpful both in analysis of the shear characteristics of multi-pass ECAP processing and in the design of new ECAP routes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
