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Non-destructive ultrasonic measurements of case depthTwo ultrasonic methods for nondestructive measurements of the depth of a case-hardened layer in steel are described. One method involves analysis of ultrasonic waves diffused back from the bulk of the workpiece. The other method involves finding the speed of propagation of ultrasonic waves launched on the surface of the work. Procedures followed in the two methods for measuring case depth are described.
Document ID
19780011576
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Flambard, C. (NASA Headquarters Washington, DC United States)
Lambert, A. (NASA Headquarters Washington, DC United States)
Date Acquired
September 3, 2013
Publication Date
February 1, 1978
Subject Category
Quality Assurance And Reliability
Report/Patent Number
PAPER-1C-1
NASA-TM-75225
Report Number: PAPER-1C-1
Report Number: NASA-TM-75225
Meeting Information
Meeting: World Conf. on Nondestructive Testing
Location: Cannes
Country: France
Start Date: September 6, 1976
End Date: September 11, 1976
Accession Number
78N19519
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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