Ultrasonic Flaw Detection for Quality Assessment of Explosively Clad Plates

Figure 9

The experimental correlation (corr) of sizes: reflector diameters 𝑑 (real defects) and equivalent reflector sizes (equivalent defects) 𝐷1(𝑡)--𝐷3(𝑡); 𝐷1(𝑡), 𝐷2(𝑡), and 𝐷3(𝑡) relating to flat bottom hole, hemispherical bottom hole and side drilled hole, respectively; 𝐷(𝑡) is the theoretical run; 𝑡 is the programme step (1·10⁻⁴) within the range of 𝑑=1--8 mm.