Measurement of intergranular attack in stainless steel using ult

Details Measurement of intergranular attack in stainless steel using ult Measurement of intergranular attack in stainless steel using ult

1988-03-02

1989-08-08

Chapman, John

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

048541737

ABSTRACT:
Ultrasonic test methods are used to measure the depth of intergranular attack (IGA) in a stainless steel specimen. The ultrasonic test methods include a pitch-catch surface wave technique and a through-wall pulse-echo technique. When used in combination, these techniques can establish the extent of IGA on both the front and back surfaces of a stainless steel specimen from measurements made on only one surface.

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G. J. Curtis, "The Use of Surface Elastic Waves in Examining Surface Mechanical Properties", in Ultrasonic Testing, (N.Y., J. Wiley & Sons, 1982), J. Szilard, ed., pp. 317-319.

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