Assessment of Thermomechanical Couplings in Tribological Surface Transformations: Application to the Irreversible Near-Surface Solid-Solid Phase Transformations

Figure 6

(a) Temperature distribution in the bar at time 𝑡=𝑡_𝐿=10 s taking into account (dashed, dotted, and dotted-and-dashed lines) or not (solid line) the heat sources due to the thermoelastic effects under three different loads: 𝜎₀^min=−200 MPa (dashed line) where 𝜏=30 s, 𝜎₀^min=−500 MPa (dotted line) where 𝜏=13 s, and 𝜎₀^min=−1000 MPa (dot-dash line) where 𝜏=8 s. (b) Stress-strain curve at point 𝑥=𝐿/200 at time 𝑡=𝑡_𝐿=10 s under the loading conditions |𝜎₀^min|=1000 MPa.