Mechanistic Study of Rail Gouging during Hypersonic Rocket Sled Tests

Figure 4

True stress-strain curves of U71Mn rail steel at different temperatures. (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)