IX. A calculation of the elastic shear constants of ?-brass
- 1 January 1952
- journal article
- research article
- Published by Taylor & Francis in Journal of Computers in Education
- Vol. 43 (336) , 105-112
- https://doi.org/10.1080/14786440108520971
Abstract
The stability of β-brass, with respect to shears across the (110) plane in the direction [110], is considered and is shown to be due, mainly, to the change of the Fermi energy as a result of the shearing of the Brillouin zone. Calculations are made which show that this effect contributes approximately 1011 dynes/cm2 to the shear constant 1/2(c 11-c 12), and a rather larger amount to c44. The constitution of the elastic shear constants, as the sum of three terms, is examined and a satisfactory account of the observed values is obtained. The difficulty experienced in attempting to retain the β-phases by quenching is briefly discussed.Keywords
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