Time-dependent mechanical behavior of phase-separated ZrCuTiTa thin films under nanoindentation

Chou, H.; Du, X.H.; Huang, J.C.; Nieh, T.G.

doi:10.1016/j.intermet.2012.01.012

Cited by 4 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In connection with Hall-Petch strengthening, the second design approach is known as precipitation or solute hardening. The alloying elements create additional entropy and barriers to the dislocation motion; , however, similar to previous approaches, the size threshold values come into play. − …”

Section: Introductionmentioning

confidence: 76%

See 1 more Smart Citation

Deformation-Controlled Design of Metallic Nanocomposites

Yavaş

Fraile

Huminiuc

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Achieving the theoretical strength of a metallic alloy material is a demanding task that usually requires utilizing one or more of the well-established routes: i. decreasing the grain size to stop or slow down the dislocation mobility, ii. adding external barriers to dislocation pathways, iii.altering the crystal structure, or iv. combining two of the previous discrete strategies, i.e., implementing crystal seeds into an amorphous matrix. Each of the outlined methods has clear limitations, hence further improvements are required. We present a unique approach that envelops all the different strength-building strategies together with a new phenomenonphase transition. We simulated the plastic deformation of a Zr-Nb nanolayered alloy using molecular dynamics and ab initio methods, and observed the transition of Zr from HCP to FCC, and then to BCC during compression. The alloy, which was prepared by magnetron sputtering, exhibited near-theoretical hardness (10.8 GPa) and the predicted transition of the Zr structure was confirmed. Therefore, we have identified a new route for improving the hardness of metallic alloys.

show abstract

Section: Introductionmentioning

confidence: 76%

“…The alloying elements create additional entropy and barriers to the dislocation motion 16,17 , however, similarly to the previous approaches, the size threshold values come into play [18][19][20][21][22] .…”

Section: Introductionmentioning

confidence: 99%