he Iron-Carbon system: Phase Diagram 1. You heat treated a 1045 steel plate by heating it to 900°C and slowly cooling it to 725 °C, which is below the eutectoid temperature. What phases are present at 725°C?  What are the compositions of each phase at 725°C?  What are the weight fractions of each phase at 725°C?  What microconstituents are present at 725°C?

Q: Consider 2.4 kg of a 99.7 wt% Fe-0.3 wt% C alloy that is cooled to a temperature just below the…

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Q: Consider 4 Kg of a 98.70 wt % Fe, 1.30 wt % C alloy at temperature just below eutectoid, determine…

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Q: Describe the phases present at the eutectic temperature when the overall composition is x(Cu)= 0.5

A: The detailed phase diagram of Ag-Cu is:

Q: A binary alloy having 28 wt% Cu and balance Ag solidifies at 779°C. The solid consists of two phases…

A: The Cu-Ag phase diagram is given below,

Q: (d) Draw and label the microstructure of an 80 wt.% Mg alloy at 600 °C. (e) A Mg-Pb alloy of mass…

A: Given Data:   To Find: (d) Draw and label the microstructure of an 80 wt.% Mg alloy at 600 °C.(e) A…

Q: 2: Consider a Cu-80wt% Ni-20% alloy, determine the following: (a) The liquidus and solidus…

A: (a) Liquidus temperature ar 'a' →Tl Tl = 1250 oC Solidus temperature at 'b' →Ts Ts = 1150 oC (b)…

Q: A 50 wt% Ni–50 wt% Cu alloy is heated to a temperature within the a  liquid-phase region. If the…

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Q: Carbon steel (0.45%C) is subjected to different heat treatment procedures. Which one gives the best…

A: Concept: 1) Austenization is a process of obtaining austenite phase in crystal structure of that…

Q: answer all the parts from a-c

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Q: n a binary Fe-Fe3C system, what is a transformation that occurs when cooling an austenistic mixture…

A: Given: Ectetiod Temperature = 723 °CAusentic mixture = 2% C

Q: The figure below shows a hypothetical binary eutectic phase diagram on which we indicate an alloy…

A: Given alloy has a composition of 27%B.

Q: Why does the tensile strength of steel, which contains only austenite at room temperature, differ…

A: Ans 1:-The final microstructural change in hot deforming process  of steel is the transformation…

Q: Consider 1.0 kg of a 99.4 wt% Fe-0.6 wt% C alloy that is cooled to a temperature just below the…

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Q: (i) Describe what is meant by the term cooling curve when phase diagrams are considered.

A: (i) A cooling curve of a a substance is a graph of the variation of the temperature with time as it…

Q: Presume that we have 100 grams of an alloy with overall chemical composition of 90 wt. pct. tin and…

A: The mass of alloy, m = 100 gm The composition of the alloy = 90 wt%Sn and 10 wt% Pb The temperature…

Q: For the alloy Mg-45 wt % Pb alloy at 500°C, what is the weight percentage of Pb in Liquid? It does…

A: Given: The wt percentage of Pb, Co = 45 The temperature of alloy, T = 500 C

Q: onsider a 80wt% Ni-20% alloy, determine the following: (a) The liquidus and solidus temperature of…

A: To find: (a) Temperature of liquidus and solidus. (b) Composition of last liquid to solidify…

Q: e answr this

A: a)From the given phase diagram the first liquid phase form at 183°C.

Q: For a 50-50 Mg-Pb alloy, what would the percent of each phase be at 500°C, 300°C and 100°C?

A: Consider the diagram as shown below   Given compositions by weight are as,

Q: 4. The figure below shows the phase diagram for a hypereutectoid plain carbon steel. Assume that…

A: To find:i. The structure at points a, b, c, and d on the diagram.ii. The of proeutectoid ferrite at…

Q: (b) The Low carbon steel (1% C) is required to be hardened by heat treatment. Related phase diagram…

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Q: Problem 1 A 30 wt% Sn-70 wt% Pb alloy is heated to a temperature within the aliquid phase region. If…

A: Problem 1: The unknown temperature with unknown phase composition marked on Pb-Sn diagram is given…

Q: An alloy system consists of two metals A&B which are soluble in each other in all proportions in the…

A:

Q: What are the compositions of the phases present in a Fe -0.40% C alloy at 726°C?

A: Given data:- Fe -0.40% C alloy at 726 °C To find:-the compositions of the phases present

Q: Draw thermal equilibrium diagram for the binary alloy system (Si-Au), from the following data:- a-…

A: To Draw :The Thermal equilibrium diagram for the binary alloy system (Given  : The silicon metal at…

Q: Suppose the alloy in Example 9.3 in your book is reprocessed to a temperature at which the liquid…

A: Solution:

Q: 3- The limited solid solubility Binary phase diagram has many types of reactions like 4- the Crystal…

A: Given questions are related to material science. 3. The limited solid solubility Binary phase…

Q: Given a blank phase diagram, label the solid, liquid, and gas phases for a pure substance. Give the…

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Q: Using the following MgO-FeO binary phase diagram, determine for an alloy of composition 60 wt% FeO:…

A: Given:-  MgO-FeO binary phase diagram Composition of the alloy is 60 wt℅ FeO To determine :-  What…

Q: For a 70-30 Zn-Cu alloy, what would the percent of each phase be at 800°C and 500°C?

A: Draw the phase diagram of Zn-Cu alloy as shown below –

Q: Answer the following questions using the phase diagram of iron and iron carbide below: For a…

A: Given data:- 99.70 wt% Fe–0.30 wt% C alloy at a temperature of 600 °C To Find:- a. The fractions of…

Q: 1-Identify all phases are present in the diagram. 2-Calculate the percentage of alloy components…

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Q: BI (a) Figure BI below shows the equilibrium phase diagram of hypothetical A - B alloy system.…

A: (i) Draw the given equilibrium phase diagram.

Q: Consider the binary Magnesium-Lead phase diagram below. For the alloy Mg-45 wt % Pb alloy at 700 C,…

A: Given: The temperature of the alloy, T = 700 C The wt percentage of Pb, Co = 45%

Q: Which of the following statements are true about the following phase diagram? Group of answer…

A: At atmospheric pressure three allotropic forms of iron exist: alpha iron (α-Fe), gamma iron  and…

Q: RD Which line on the above phase diagram corresponds to the Solid-Liquid transition? Answer P.

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Q: 7. Consider 1.5 kg of a 99.6 wt% Fe-0.4 wt% C steel that is cooled to a temperature just below the…

A: In this problem we are asked to consider 2.0 kg of a 99.6 wt% Fe-0.4 wt% C alloy that is cooled to a…

Q: Temperature zones, A, B, C and D, for a range of heat-treatment processes for carbon steel are shown…

A: This question is based on the concept of heat treatment processes for steel.

Q: The liquidus and solidus temperatur The composition of last liquid to sol

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Q: Using the isothermal transformation curve for a Eutectoid steel, determine the final structure of…

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Q: Use the Lead-Tin (Pb-Sn) phase diagram below to answer the following questions: Place the following…

A: Given:

Q: Temperature ('C lemperature (F) Consider 1 kg of Copper - Silver alloy (Cu - Ag) containing 75 wt%…

A: Since the alloy is cooled just below the eutectic temperature, the alloy is in phase. The diagram…

Q: In a binary Fe-Fe3C system, what is the transformation that occurs when cooling an austenistic…

A: Given: The carbon percentage = 2% The temperature of austenite mixture, T = 1100 C The eutectoid…

Q: Describe the different phases in the Fe-Fe-C diagram?

A: This diagram is known as iron carbon phase diagram.

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.