New possibilities of achieving ultra - fine grained microstructure in metals and alloys employing MaxStrain technology
|Roman M. Kuziak 1, Wladyslaw Zalecki 1, Maciej Pietrzyk 2, Stanisław Węglarczyk 2|
1. Institute for Ferrous Metallurgy (IMZ), Karola Miarki, Gliwice 44-100, Poland
In the paper, the deformation experiments conducted on the MaxStrain system aimed at achieving ultra fine grained structure in selected metals and alloys are described. The MaxStrain system provides an alternative way of developing such a structure compared to other methods that involve the effect of severe plastic deformation on grain refinement in bulk samples, such as the equal channel angular pressing. The part of the sample (10 mm in length) is compressed by two synchronised anvils to maintain its integrity. The sample is rotated by 90 degrees between the consecutive deformations, and it may be allowed to expand along its axis during deformation or may be restrained at the ends requiring the lateral deformation in the deformation zone. In this way, a total strain of 20 can be accumulated in the structure causing a substantial grain refinement.
Presentation: oral at E-MRS Fall Meeting 2003, Symposium G, by Roman M. Kuziak
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-05-23 12:53 Revised: 2009-06-08 12:55