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Development of Hardening Penetration Depth Evaluation Using Ultrasonic Wave
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English
Abstract
A “Hardening Penetration Depth Evaluation” technique using ultrasonic wave is developed, instead of destructive inspection. An induction hardened structure possesses extremely fine(∼10μm) grain size, whereas, an non-hardened structure possesses coarse(∼100μm) grain size. This non-destructive technique measures scattering echo, scattered from boundary of hardened structure and non-hardened structure. The advantage of this technique is that through the visualization, one can measure scattering echo around the material and thus acquire quenching pattern. In addition throughout its resolution, one can measure scattering probability distribution of the ultrasonic wave and obtain hardening penetration depth.
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Authors
Citation
Tanaka, H., Banno, A., Morinaga, Y., and Morita, K., "Development of Hardening Penetration Depth Evaluation Using Ultrasonic Wave," SAE Technical Paper 981082, 1998, https://doi.org/10.4271/981082.Also In
References
- Mihara Date et al. “The Evaluation of the Depth of Hardened Layers by Crystal Grain-Scattered Echoes.” Non-Destructive Inspection. Japan, Proceedings of the Fall 1994 Conference 315 322 1994
- Nakanishi Fujisawa “The Measurement and the Non-Destructive Inspection of the Depth of Hardening Penetration by the Ultrasonic Back Scattering Method.” Non-Destructive Inspection Japan 37-2A 116 117 1988
- Mihara Kohata Furukawa “The Ultrasonic Back Scattering Method and Basic Research on its Application to the Evaluation of Materials.” Non-Destructive Inspection Japan 38-7 583 588 1988