Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific relationship
|
| gptkbp:appliesTo |
polycrystalline materials
|
| gptkbp:describes |
relationship between grain size and yield strength
|
| gptkbp:effect |
grain refinement increases strength
|
| gptkbp:field |
materials science
|
| gptkbp:formedBy |
E. O. Hall
N. J. Petch |
| gptkbp:hasEquation |
σy = σ0 + k*d^(-1/2)
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hall–Petch relationship
|
| gptkbp:kraj |
strengthening coefficient
|
| gptkbp:limitation |
breaks down at very small grain sizes
|
| gptkbp:relatedTo |
dislocation theory
grain boundary strengthening |
| gptkbp:yearProposed |
1951
|
| gptkbp:σ0 |
friction stress
|
| gptkbp:σy |
yield stress
|
| gptkbp:דת |
average grain diameter
|
| gptkbp:bfsParent |
gptkb:John_Petch
|
| gptkbp:bfsLayer |
8
|