A method for measuring texture of metal plates or sheets using non-destructive ultrasonic investigation includes measuring the velocity of ultrasonic energy waves in lower order plate modes in one or more directions, and measuring phase velocity dispersion of higher order modes of the plate or sheet if needed. Texture or preferred grain orientation can be derived from these measurements with improves reliability and accuracy. The method can be utilized in production on moving metal plate or sheet.
ISURF Reference Number
Iowa State University Research Foundation, Inc.,
Thompson, Robert Bruce; Smith, John F.; Lee, Seung S.; and Lee, Yan, "Method of ultrasonic measurement of texture" (1997). Iowa State University Patents. 148.