# Dynamic Viscosity and Transverse Ultrasonic Attenuation of Engineering Materials
## 3 Results and Discussion
### Attenuation Behavior of Iron and Ferrous Alloys
** & **Material** & \(\mathbf{C_{c}}\) & \(\mathbf{C_{g}}\) & \(\mathbf{v}\) & \(\mathbf{n}\) & \(\mathbf{C_{g}}\) & \(\mathbf{C_{g}}\) & \(\mathbf{v_{i}}\) & \(\mathbf{n_{i}}\) & \(\mathbf{C_{g}/C_{g}}\) & \(\mathbf{n_{f}}\) & **Trideness** & **Videars** & **Notes** \\ \hline \hline No & & **40/m/** & **40/m/** & **mm/** & & **40/m/** & **40/m/** & **mm/** & & & & **mm** & **HN** & \\  & **MHz** & **MHz*** & **sys** & & & **MHz*** & **sys** & & & & & **mm** & **HN** & \\ \hline F1 & Pure Fe & 129 & & 6.05 & \(2.86\times 10^{-2}\) & 164 & & 3.21 & \(1.93\times 10^{-2}\) & 1.271 & 0.675 & 72.1 & 174 & Cold worried \\ F1a & Pure Fe & 135 & & 6.05 & \(2.99\times 10^{-2}\) & 164 & & 3.21 & \(1.93\times 10^{-2}\) & 1.215 & 0.648 & 72.1 & 174 & Cold worried \\ F2 & Pure Fe & 1258 & & 6.08 & \(2.80\times 10^{-2}\) & 159 & & 3.28 & \(1.91\times 10^{-2}\) & 1.264 & 0.682 & 30.2 & 91 & Arnealed \\ F2 & Pure Fe & 126 & & 6.05 & \(3.00\times 10^{-2}\) & 159 & & 3.28 & \(1.91\times 10^{-2}\) & 1.699 & 0.634 & 30.2 & 91 & Arnealed \\ F9 & 1020 & 9.8 & \(1.41\times 10^{-3}\) & 5.91 & \(2.12\times 10^{-3}\) & 156 & 3.313 \(\times 10^{-2}\) & 3.21 & \(1.80\times 10^{-3}\) & 1.592 & 0.863 & 31.8 & 100 & Arnealed \\ F10 & 1020 & 7.6 & \(8.80\times 10^{-3}\) & 5.87 & \(1.63\times 10^{-3}\) & 136 & 3.57\(\times 10^{-2}\) & 3.21 & \(1.60\times 10^{-3}\) & 1.799 & 0.979 & 10.90 & 100 & Arnealed TDM-1 \\ F11 & 1020 & 7.5 & \(5.74\times 10^{-3}\) & 5.87 & \(1.64\times 10^{-3}\) & 11.1 & \(4.35\times 10^{-3}\) & 3.21 & \(1.31\times 10^{-3}\) & 1.480 & 0.899 & 31.8739100 & 100 & Arnealed TDM-1 \\ F12 & 1020 & 5.0 & (4.84\pm 1.2) & 5.90 & \(1.05\times 10^{-3}\) & 169 & 4.51\(\times 10^{-3}\) & 3.26 & \(2.02\times 10^{-3}\) & 3.492 & 1.928 & 66.4 & 161 & \\ F38 & 4340 & 6.0 & & 5.86 & \(1.29\times 10^{-3}\) & 6.7 & & 3.16 & \(7.72\times 10^{-3}\) & 1.112 & 0.599 & 61.0 & 315 & Same as F38 \\ F39 & 4340 (7) & 9.1 & & 5.92 & \(1.98\times 10^{-3}\) & 6.3 & & 3.21 & \(4.75\times 10^{-3}\) & 0.639 & 0.376 & 79.0 & 315 & Same as F38 \\ F40 & 4340 (8) & 8.2 & & 5.85 & \(1.75\times 10^{-3}\) & 22.6 & & 3.22 & \(2.67\times 10^{-3}\) & 2.753 & 1.515 & 25.2 & 315 & Same as F38 \\ F44 & 4142 & 5.5 & \(1.25\times 10^{-3}\) & 5.92 & \(1.18\times 10^{-3}\) & 129 & & 3.23 & \(1.53\times 10^{-3}\) & 2.367 & 1.291 & 60.3 & 321 & Same as F42-F8 \\ F44 & 4142 & 5.5 & \(1.25\times 10^{-3}\) & 5.92 & \(1.18\times 10^{-3}\) & 158 & & 3.23 & \(1.87\times 10^{-2}\) & 2.899 & 1.82 & 60.3 & 321 & \\ F45 & 4142 (7) & 25.5 & & 5.75 & \(5.37\times 10^{-3}\) & 289 & & 3.21 & \(3.40\times 10^{-3}\) & 1.133 & 0.633 & 18.9 & 321 & \\ F51 & 4142 (7) & 13.2 & & 5.75 & \(2.78\times 10^{-3}\) & 11.0 & \(5.70\times 10^{-3}\) & 3.24 & \(1.33\times 10^{-3}\) & 0.799 & 0.53 & 18.9 & 164 & QQ + temper \\ F53 & 1060 & 15.3 & & 5.93 & \(3.32\times 10^{-3}\) & 11.0 & \(5.70\times 10^{-3}\) & 3.24 & \(1.33\times 10^{-3}\) & 0.719 & 0.938 & 54.3 & 198 & Ball used \\ F58 & HSLAS/400 & 4.6 & & 5.81 & \(8.71\times 10^{-3}\) & 13.0 & \(2.13\times 10^{-3}\) & 3.21 & \(1.53\times 10^{-3}\) & 2.861 & 1.575 & 75.0 & 132 & Same as F99, F60 \\ F63 & HSLAS/400 (7) & 4.9 & & 5.86 & \(1.05\times 10^{-3}\) & 12.9 & \(1.54\times 10^{-3}\) & 3.23 & \(1.53\times 10^{-3}\) & 0.633 & 1.633 & 1.451 & 71.2 & 132 & \\ F64 & HSLAS/400 (5) & 15.4 & & 5.85 & \(3.30\times 10^{-3}\) & 12.5 & \(2.69\times 10^{-3}\) & 3.22 & \(1.47\times 10^{-3}\) & 0.821 & 0.447 & 50.1 & 312 & \\ F66 & 45330 & 7.1 & & 5.91 & \(1.35\times 10^{-3}\) & 5.2 & \(2.63\times 10^{-3}\) & 3.23 & \(6.11\times 0^{-3}\) & 0.729 & 0.989 & 60.7 & 189 & \\ F65 & 1C-1M/200 & 6.4 & & 5.88 & \(1.37\times 10^{-3}\) & 5.9 & \(3.28\times 10^{-3}\) & 3.23 & \(7.02\times 10^{-3}\) & 0.931 & 0.511 & 60.8 & 240 & \\ F72 & Todd test T0 (5) & 56.7 & & 5.75 & \(1.19\times 10^{-3}\) & 5.66 & & 3.2 & \(4.29\times 10^{-3}\) & 0.646 & 0.39 & 12.7 & 1155 & \\ F72a & [PERSON] test T0 (6) & 6.9 & & 5.87 & \(1.44\times 10^{-3}\) & 36.6 & & 3.2 & \(4.29\times 10^{-3}\) & 0.547 & 0.298 & 12.7 & 1155 & \\ F76 & Hardness & 28.4 & &