The hardenability curves for a number of steels are shown in the diagram below. Rank the...
The hardenability curves for a number of steels are shown in the diagram below. Rank the steels in ascending order according to their hardenability. If the thermal properties of the steels are the same, i.e. the cooling curves (temperature versus time) at a certain distance from the quenching end are the same for all the steels, explain the difference in hardness at a distance of 30 mm from the quenched end between 5140 and 4340 by plotting schematically the C...
I need help to write a nice introduction for experiment 6 please ( no hands write ) typing Thank you HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...
Ou. 3 Chapters 10- 11: Phase Transformations/ Designations, Compositions and Typ Applications for Some Selected Steels (25%) Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition 6), please, identify and name the final microstructures resulting from the two cooling curves labeled (@) and (b). (c): Draw and label on Figure 6 the cooling curve that yields the following microstructures: 50% of microstructure A (Figure 7a) and 50% of microstructure B (Figure 7b). (d) Please, provide missing information...
I am studying material science in engineering. Please help me solve this as I am in need of help. Please explain this step by step with proper solutions. Thanks alot The quenching of steels 800 Eutectoid temperature 400 700 1200 600 1000 500 2 8 400 800 M A 400 M (50%) 100 200 0 102 Time Is) 10 103 104 Referring to the TTT diagram above 2.1 Describe the microstructure that results from i) Cooling rapidly to 560°C, holding...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.% C are produced by melting and slowly cooling down to room temperature. By referring the phase diagram provided in figure 3, what would you expect in terms of phase changes (solidification sequence) in all three alloys as the temperature of the alloys reduces from melting temperature to room temperature? What will be the approximate weight fraction of each of those micro constituents at room...
In the ITT diagram for 1078 Steel below, 3 separate cooling cures are shown. Answer the following questions based on the 3 different processing schemes. 800 A Eutectoid temperature 700 A 600 P -*-4- Cooling Curve 1 500 Cooling Curve 2 Temperature (°C) 400 A 300 M(start) 50% 200 M + A M(50%) M(90%) 100 → Cooling Curve 3 10-1 102 10% 104 1 10 Time log scale (s) a) Explain what the resulting micro-structure will be for each of...