Corrigendum to “Comparison of incipient plasticity in bcc and fcc metals studied using nanoindentation” [Mater. Sci. Eng. A 426 (2006) 208–213]

Vadlakonda, Suman; Banerjee, Rajarshi; Puthcode, Anantha; Mirshams, Reza A.

doi:10.1016/j.msea.2006.07.093

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[5][6][7] While one school of thought contends that the transition from a serrated elasto-plastic behavior to a more continuous (no serrations in P-h curves) deformation behavior results from a change in the underlying deformation mechanism, [5,6] the other school of thought associates this change to the inability of the instrument to discern discrete plastic displacement bursts at higher loading rates. [7] In a previous study of nanoindentation in crystalline W, Fe, and, Ni, [23] carried out by the authors of the present article, the experimental observations indicated that it is unlikely that instrumental resolution is the sole factor responsible for the change in the P-h behavior of these materials with increasing strain rates. On the contrary, it was suggested that, with increasing strain rate, there is a change to a more homogeneous elasto-plastic behavior.…”

Section: Resultsmentioning

confidence: 49%

Incipient Plasticity and Shear Band Formation in Bulk Metallic Glass Studied Using Indentation

Puthucode

Banerjee

Vadlakonda

et al. 2007

Metall Mater Trans A

Self Cite

View full text Add to dashboard Cite

This study focuses on investigating certain aspects of deformation in bulk metallic glasses (BMGs) based on nanoindentaion and microindentation studies. Using a Berkovich indenter in nanoindentation, the incipient plasticity or early stages of deformation have been studied for a typical BMG, Vitreloy 1. From a critical analysis of the load-displacement curves, the initial displacement burst, often associated with the initiation of shear bands, was found to occur at a value close to the theoretical shear stress of the material. The deformation behavior below these indents, including the formation of shear bands, has been investigated by transmission electron microscopy. The evidence suggests structural changes associated with possible expansion of free volume within the shear bands, especially in the case of deformation under higher loads. Furthermore, while the possibility of nanocrystallization within the shear bands cannot be ruled out, the experimental results do not conclusively indicate the occurrence of such a phenomenon.

show abstract

Section: Resultsmentioning

confidence: 49%

Incipient Plasticity and Shear Band Formation in Bulk Metallic Glass Studied Using Indentation

Puthucode

Banerjee

Vadlakonda

et al. 2007

Metall Mater Trans A

Self Cite

View full text Add to dashboard Cite

show abstract

Influence of external and internal length scale on the flow stress of copper

Kiener

Rester

Scheriau

et al. 2007

International Journal of Materials Research

View full text Add to dashboard Cite

The flow stress of bulk specimens is known to depend on the microstructure. With a reduction of specimen dimensions into the micrometer and nanometer regime, specimen size-effects also influence the mechanical properties. We characterized the size-dependent flow stress of copper over more than three orders of magnitude, starting from several tens of micrometers down to a few tens of nanometers. For this purpose nanoindentation, micro-compression, and tensile testing experiments were performed. Additionally, different grain sizes were generated by severe plastic deformation. The observed increase in flow stress with reduced critical dimension is discussed with respect to the different stress states and microstructures present in the reported experiments. The mechanism controlling deformation changes from dislocation pile-up for critical dimensions > 1 lm via a transition regime (1 lm > critical dimensions > 100 nm) to dislocation nucleation for critical dimensions < 100 nm.

show abstract

Zr-7Cu Alloy Design According to Sn Content for Bio-Metallic Materials

Kim¹,

Kim²

2021

Korean. J. Mater. Res.

View full text Add to dashboard Cite

Corrigendum to “Comparison of incipient plasticity in bcc and fcc metals studied using nanoindentation” [Mater. Sci. Eng. A 426 (2006) 208–213]

Cited by 3 publications

References 0 publications

Incipient Plasticity and Shear Band Formation in Bulk Metallic Glass Studied Using Indentation

Incipient Plasticity and Shear Band Formation in Bulk Metallic Glass Studied Using Indentation

Influence of external and internal length scale on the flow stress of copper

Zr-7Cu Alloy Design According to Sn Content for Bio-Metallic Materials

Contact Info

Product

Resources

About