1. A hypoeutectoid steel with 0.4wt%C is heated to 900°C for austenitization. Then the steel is transferred to another furnace with temperature 750°C. (a) Calculate the phase fractions at this temperature (b) The steel is transferred to another furnace at 700°C. How much pearlite forms? (c) How much cementite forms? (d) If the steel is left to cool slowly in the furnace at room temperature and then we turn on the furnace so it will reach a temperature of 750°C, how much austenite forms and what is its carbon content? (e) Another steel contains 70% austenite at 750°C. What is its carbon content?