A. A tensile stress (♂) is applied to a single crystal. The angle between the direction of the tensile stress and the normal to the slip plane of the most favorable slip system is 37°. Slip (or yielding) occurs when the applied tensile stress increases to a magnitude of 2.3 times the critical resolved shear stress (Terss). What is the angle between the direction of the tensile stress and direction of slip for this yielding condition? B. For the conditions in Part A, the stress at yielding (o') approaches 140 MPa as the crystal size (d) grows very large. If k, = 28.4 MPa - mm 0.5 and the yield strength is 375 MPa, what is the grain size?

Elements Of Electromagnetics
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A. A tensile stress (σ) is applied to a single crystal. The angle between the direction of the tensile
stress and the normal to the slip plane of the most favorable slip system is 37°. Slip (or yielding)
occurs when the applied tensile stress increases to a magnitude of 2.3 times the critical resolved
shear stress (Terss). What is the angle between the direction of the tensile stress and direction of
slip for this yielding condition?
B. For the conditions in Part A, the stress at yielding (σý) approaches 140 MPa as the crystal size
(d) grows very large. If k, = 28.4 MPa — mmº.5 and the yield strength is 375 MPa, what is the
grain size?
Transcribed Image Text:A. A tensile stress (σ) is applied to a single crystal. The angle between the direction of the tensile stress and the normal to the slip plane of the most favorable slip system is 37°. Slip (or yielding) occurs when the applied tensile stress increases to a magnitude of 2.3 times the critical resolved shear stress (Terss). What is the angle between the direction of the tensile stress and direction of slip for this yielding condition? B. For the conditions in Part A, the stress at yielding (σý) approaches 140 MPa as the crystal size (d) grows very large. If k, = 28.4 MPa — mmº.5 and the yield strength is 375 MPa, what is the grain size?
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