Sensors & Electronics
Macro Property Measurement
Evaluating Metal Heat Treatment Efficacy (368)
Problem: Need rapid, non-destructive method to measure hardening depth and gradient of treated steel parts.
Project Activity Scope (from Technical Overview Chart): Interaction Mechanisms through Measurement & Analysis Method Development.
PNNL Solution:
- Hardening modifies the micro-structure of treated steels
- Microstructural changes result in reduction of ultrasonic energy scattering from hardened zones
- Experimentally determine relationship between material hardening and ultrasonic effects
- Effect provides a reliable basis for rapid, non-destructive QA tests.
Capabilities Employed to Meet Client Needs: Material property characterization; acoustic interactions with steel for a variety of ultrasonic frequencies and beam characteristics; analog and digital electronics development; signal analysis to establish correlation between material properties and acoustic measurement data.
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Contact: Morris Good
