The Hall–Petch relation in aluminium and its dependence on the grain boundary structure

Wyrzykowski, J.W.; Grabski, M.W.

doi:10.1080/01418618608242849

Cited by 210 publications

(38 citation statements)

References 15 publications

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“…[1][2][3][4][5][6][7][8] Whether hardness, which is defined as the indentation load divided by the area of the indent made, can be a sensitive enough parameter to represent the hardening potential of a grain boundary, however, is controversial. In many reports where an increase in the measured hardness was observed, the grain boundary hardening was attributed to segregation of impurity atoms.…”

Section: Introductionmentioning

confidence: 99%

Indentation strain burst phenomenon induced by grain boundaries in niobium

2004

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Using depth-sensing indentation, a pop-in phenomenon induced by grain boundaries, namely, a sudden indenter displacement jump when indented near a grain boundary segment, was observed in polycrystalline niobium. This grain-boundary type of pop-in occurs at a larger force than the initial elasto-plastic pop-in, which is observed with and without a grain boundary nearby. The experimental results show that this pop-in effect has a close relationship with the misorientation across the grain boundary. The occurrence of this pop-in phenomenon is rationalized in terms of slip transmission across the grain boundary.

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Section: Introductionmentioning

confidence: 99%

Indentation strain burst phenomenon induced by grain boundaries in niobium

2004

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“…Since the value of the Hall -Petch slope depends on the grain boundary parameters [10], the geometry of our experiment needs to be known in order for a complete analysis to be conducted. Using the EBSD information, we can calculate the favored slip systems on both sides of the boundary, assuming Schmid behavior as a first approximation.…”

Section: Activated Slip Systemsmentioning

confidence: 99%

Detection of grain-boundary resistance to slip transfer using nanoindentation

Soer

Hosson

2005

Materials Letters

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“…It is seen that the cracks propagate along the boundaries of the elongated grain, indicating that the grain boundary is weak and brittle. There is evidence that the absorption of dislocations is slower at LAGBs [35]. And the LAGBs present enhanced dislocation activity and strain hardening rate compared to HAGBs [36].…”

Section: Mechanical Propertiesmentioning

confidence: 97%