Basic criteria for formation of growth twins in high stacking fault energy metals

K. Y. Yu, D. Bufford, Y. Chen, Y. Liu, H. Wang, X. Zhang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Nanotwinned metals received significant interest lately as twin boundaries may enable simultaneous enhancement of strength, ductility, thermal stability, and radiation tolerance. However, nanotwins have been the privilege of metals with low-to-intermediate stacking fault energy (SFE). Recent scattered studies show that nanotwins could be introduced into high SFE metals, such as Al. In this paper, we examine several sputter-deposited, {111} textured Ag/Al, Cu/Ni, and Cu/Fe multilayers, wherein growth twins were observed in Al, Ni, and face-centered cubic (fcc) Fe. The comparisons lead to two important design criteria that dictate the introduction of growth twins in high SFE metals. The validity of these criteria was then examined in Ag/Ni multilayers. Furthermore, another twin formation mechanism in high SFE metals was discovered in Ag/Ni system.

Original languageEnglish (US)
Article number181903
JournalApplied Physics Letters
Volume103
Issue number18
DOIs
StatePublished - Oct 28 2013

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stacking fault energy
metals
thermal radiation
radiation tolerance
ductility
thermal stability
augmentation

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Yu, K. Y., Bufford, D., Chen, Y., Liu, Y., Wang, H., & Zhang, X. (2013). Basic criteria for formation of growth twins in high stacking fault energy metals. Applied Physics Letters, 103(18), [181903]. https://doi.org/10.1063/1.4826917

Basic criteria for formation of growth twins in high stacking fault energy metals. / Yu, K. Y.; Bufford, D.; Chen, Y.; Liu, Y.; Wang, H.; Zhang, X.

In: Applied Physics Letters, Vol. 103, No. 18, 181903, 28.10.2013.

Research output: Contribution to journalArticle

Yu, KY, Bufford, D, Chen, Y, Liu, Y, Wang, H & Zhang, X 2013, 'Basic criteria for formation of growth twins in high stacking fault energy metals', Applied Physics Letters, vol. 103, no. 18, 181903. https://doi.org/10.1063/1.4826917
Yu, K. Y. ; Bufford, D. ; Chen, Y. ; Liu, Y. ; Wang, H. ; Zhang, X. / Basic criteria for formation of growth twins in high stacking fault energy metals. In: Applied Physics Letters. 2013 ; Vol. 103, No. 18.
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