Abstract
For stainless steels 304, 310, and 316, longitudinal and transverse ultrasonic velocities were measured by a pulse‐echo method between 295 and 4 K. From these velocities were computed five elastic constants: longitudinal modulus, shear modulus, Young’s modulus, bulk modulus, and Poisson’s ratio. All three steels show low‐temperature elastic‐constant anomalies, which arise from magnetic phase transitions.