2015 journal article

Stacking-fault energy effect on zero-strain deformation twinning in nanocrystalline Cu-Zn alloys

SCRIPTA MATERIALIA, 109, 89–93.

By: X. Ma n, H. Zhou n, J. Narayan n & Y. Zhu n

author keywords: Deformation twin; Zero-strain twinning; Nanocrystalline alloy; Stacking-fault energy
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

It has been reported that most deformation twins in nanocrystalline face-centered-cubic metals do not produce macroscopic strain. Here we report the decrease of zero-strain deformation twinning with decreasing stacking-fault energy. One of the two major mechanisms that produce zero-strain twinning is cooperative slip of three partials under external applied stress. Lower stacking-fault energy weakens this mechanism and statistically reduces the fraction of twins with zero-strain.