Nonlinear resonant ultrasound spectroscopy of stress corrosion cracking in stainless steel rods

Journal Article · Sat Dec 15 00:00:00 EST 2018 · NDT and E International

DOI:https://doi.org/10.1016/j.ndteint.2018.12.007· OSTI ID:1544723

Hogg, Stephen M. ^[1]; Anderson, Brian E. ^[1]; Le Bas, Pierre-Yves  ^[2]; Remillieux, Marcel C.  ^[2]

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1. Brigham Young Univ., Provo, UT (United States)
2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Stainless steel containers are susceptible to stress corrosion cracking (SCC) under certain stress and corrosion conditions. Nonlinear ultrasonic techniques are very sensitive to the early presence of damage, more so than linear techniques. Nonlinear Resonant Ultrasound Spectroscopy (NRUS) is used here to measure a nonlinear shift in the resonance frequency due to a cumulative amount of SCC. Steel rods are immersed in a heated magnesium chloride solution and removed after different exposure times. NRUS measurements are conducted using the fundamental longitudinal mode of vibration. Rods exposed longer generally have a larger resonance frequency shift and are therefore more nonlinear. Thus NRUS might offer a means of detecting a cumulative SCC damage in a sample.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• Grant/Contract Number: 89233218CNA000001; NE0008442
• OSTI ID: 1544723
• Alternate ID(s): OSTI ID: 1636917
• Report Number(s): LA-UR-18-27596
• Journal Information: NDT and E International, Vol. 102, Issue C; ISSN 0963-8695
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Acoustics
Nondestructive Testing
Stress Corrosion Cracking
Crack
Nonlinear