Semi-automatic for ultrasonic measurement of texture

Patent · Mon Feb 12 23:00:00 EST 1990

OSTI ID:867269

Thompson, R Bruce ^[1]; Smith, John F ^[1]; Lee, Seung S ^[2]; Li, Yan ^[1]

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1. Ames, IA
2. Taejon Ch'ungmam, KR

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 improved reliability and accuracy. The method can be utilized in production on moving metal plate or sheet.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State University Research Foundation (Ames, IA)
• Patent Number(s): US 4899589
• Application Number: 07/188,495
• OSTI ID: 867269
• Country of Publication: United States
• Language: English

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