Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

The reproducibility of the ultrasonic response of aluminum calibration blocks, as defined in ASTM standard E-127 [1,2] is of considerable interest because of the use of these blocks as calibration and reference standards. However, there is a general perception that the ultrasonic attenuation in the materials from which these blocks are produced has changed with time, a consequence of the evolution of the metallurgical processing procedures used to produce the rolled rod from which the standards are fabricated. Among the issues that this raises are questions concerning the influence of E-127 block attenuation on the sizing of flaws in materials produced by other processes, e.g., rolled plate, and whether standards should be alloy specific.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18B

Chapter

Chapter 8: Process Control, Reliability, and Training

Section

NDE Reliability Calibration

Pages

2337-2344

DOI

10.1007/978-1-4615-4791-4_299

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

The Effects of Microstructure on the Response of Aluminum E-127 Calibration Standards

Snowbird, UT, USA

The reproducibility of the ultrasonic response of aluminum calibration blocks, as defined in ASTM standard E-127 [1,2] is of considerable interest because of the use of these blocks as calibration and reference standards. However, there is a general perception that the ultrasonic attenuation in the materials from which these blocks are produced has changed with time, a consequence of the evolution of the metallurgical processing procedures used to produce the rolled rod from which the standards are fabricated. Among the issues that this raises are questions concerning the influence of E-127 block attenuation on the sizing of flaws in materials produced by other processes, e.g., rolled plate, and whether standards should be alloy specific.