Hall-Petch equation
词源说明
Independently discovered by English scientists Eric O. Hall and Norman J. Petch, in 1951 and 1953 respectively.
释义
专有名词proper noun
- 1(materials science) A relationship between the yield point and grain size of a material given by the equation σy = σ0 + ky * d-0.5, where σy is the yield stress, d is the average grain diameter, and σ0 and ky are constants specific to a particular material.