Measurement of intergranular attack in stainless steel using ultrasonic energy

Patent · 08 August 1989

OSTI ID:867062

Mott, Gerry ^[1]; Attaar, Mustan ^[2]; Rishel, Rick D ^[2]

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1. Pittsburgh, PA
2. Monroeville, PA

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.

• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4854173
• Application Number: 07/163,360
• OSTI ID: 867062
• Country of Publication: United States
• Language: English

Related Subjects

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combination
depth
energy
establish
extent
front
iga
intergranular
intergranular attack
measure
measurement
measurements
methods
pitch-catch
pulse-echo
specimen
stainless
stainless steel
steel
surface
surface wave
surfaces
technique
techniques
through-wall
ultrasonic
ultrasonic energy
wave