Preliminary communication

Initial porosity impact on equal channel angular pressing (ECAP) of Ti–6Al–4V powder material

V. A. Andreyachshenko ; Faculty of Nanotechnology and Metallurgy, Karaganda state technical University, Karaganda, Kazakhstan
M. K. Ibatov ; Karaganda state industrial University, Karaganda, Kazakhstan
D. A. Issagulova ; Faculty of Nanotechnology and Metallurgy, Karaganda state technical University, Karaganda, Kazakhstan

Abstract

There is studied the technology of processing Ti-6Al-4V powder material with various initial densities using the method of equal channel angular pressing. The device with the 90, 120 and 135 degree angled joint channels was used for the study. The deformation was carried out at the room temperature. It was found that the most favorable stressed-and-strained state was formed in the instrument where the angle of channel joints was equal to 135 degrees. The maximum compression in the instrument is reached at 90 degree angle of the channel joints, but it needs a larger deformation force. To obtain pressed material it is recommended to use a high ECAP cycle for any configuration.

Keywords

powder material; ECAP; Ti-6Al-4V alloy; stress-strain state

Hrčak ID:

157451

URI

https://hrcak.srce.hr/157451

Publication date:

1.10.2016.

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