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Development of Hardening Penetration Depth Evaluation Using Ultrasonic Waves

机译:超声波强化硬化深度评估的进展

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摘要

A "Hardening Penetration Depth Evaluation" technique using ultrasonic wave has been developed to replace destructive inspection. An induction hardened structure possesses an extremely fine (-10 μm) grain size, whereas, an non-hardened structure possesses a 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 obtain a quenching pattern. In addition throughout its resolution, one can measure the scattering probability distribution of the ultrasonic wave and obtain the hardening penetration depth.
机译:已经开发了使用超声波的“强化穿透深度评估”技术来代替破坏性检查。感应淬火组织具有极细的(-10μm)晶粒尺寸,而非淬火组织具有较粗的(-100μm)晶粒尺寸。这种非破坏性技术可测量从硬化结构和非硬化结构的边界散射的散射回波。该技术的优势在于,通过可视化,可以测量材料周围的散射回波,从而获得淬火图案。另外,在整个分辨率中,可以测量超声波的散射概率分布并获得硬化穿透深度。

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