For slag system of CaO-SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>-MgO-V<sub>2</sub>O<sub>5</sub>,the time of V reduction to appro ch thedynamical equilibrium i
The surface yield strength(σ<sub>ms</sub>)for various carbon steels was studied by means of X-raydiffraction method.The results showed that it is.far below the