Research Article
Mechanistic Study of Rail Gouging during Hypersonic Rocket Sled Tests
Figure 8
Microstructure of U71Mn rail steel at different experimental temperatures and a strain rate of 0.0005 s−1. (a) Experimental temperature: 25°C. (b) Experimental temperature: 200°C. (c) Experimental temperature: 400°C (d) Experimental temperature: 600°C. (e) Experimental temperature: 800°C.
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |