Why the Limestone is used into the blast fumace to produce pig iron? Why the Aluminium has anti-corrosion property? Why the Lead is used in medical devices such as x-ray apparatus?
Q: Q1: For homogeneous nucleation of iron, calculate the activation free energy, critical radius and…
A: Given data: Here, ΔHf represents the latent heat of fusion, r represents the surface free energy, a…
Q: Why are Ni3Al (γ') precipitates particularly effective at strengthening nickel-based superalloys?
A: Nickel-based superalloys are utilized for high-temperature applications because these alloys are…
Q: Draw an iron iron-carbide diagram. Show the percentage of carbon in each phase.
A: Given: Iron iron-carbide diagram
Q: Define eutectic, eutectoid and peritectic reactions with the examples
A: Iron carbon diagram represents the behaviour of iron with respect to the temperature and the…
Q: During Basic Oxygen Process to manufacture low carbon stainless steel, 600 kg of cast iron (6%of…
A: It is given that, Amount of cast iron =600 kg in which 6 % is carbon,Hence,600 kg of cast iron…
Q: To what temperature should hypoeutectoid plain carbon steel be heated for hardening purposes…
A:
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: oy is observed to be at 580°C at which the mass fraction of silicon is 0.125. Represent the…
A: solution of above problem is below:
Q: Assume you have 1kg of an alloy consisting of 85 wt% Sn and 15 wt% Pb at a temperature of 184 °C.…
A: Draw the above given phase diagram.
Q: Suppose you are asked to manufacture a critical component based on a nickel-based super-alloy. The…
A: GIVEN: Manufacture a critical component based on nickel based super alloy
Q: b) What are the types of cast iron according to their microstructure? Explain with drawing.
A: To explain: The types of cast iron according to their microstructure. Explanation: The types of the…
Q: Which is the iron ore whose chemical component is FeCO3 and whose iron content is 48,2%? A)…
A: Solution:
Q: What is a complementary solutin?
A: In general the solution of a non-homogeneous equation holds two terms the complementary solution and…
Q: What is the% C ratio of two different steels with 80% equal and equal austenite content at 724 C?
A: Given: two different steels with 80% equal and equal austenite content at 724 C
Q: explain the total formation volume factor, Bt.
A:
Q: What three major factors affect the hydrogenembrittling process?
A: Hydrogen embrittlement(HE) is a type of environmental assisted cracking(EAC) which refers to…
Q: Choose the best
A: Option (a) Tempering is correct option
Q: Calculate the amount of arbon reque produce cementite (FepC) from 18' to iron ( purity 56 % ).
A: grade of iron is 56% pure amount of iron present in 18T iron = 0.56 * 18 = 10.08 T
Q: As the magnesium content of compacted iron increases, the graphite nodularity.
A: Answer is Increases.
Q: To produce martensite, do you need to use a very slow cooling rate? Why or why not ?
A: Heat treatment is the process in which metal heat without reaching its molten point and then cool it…
Q: What is the% C ratio of two different steels with 80% and equal austenite content at 724 C? please…
A: With the help of iron-carbon diagram,at 724oC & 80% austenite, carbon percentage will be: 0.9%…
Q: Why the Lead is used in medical devices such as x-ray apparatus? Why the actual size and shape of…
A:
Q: Nickel is extensively used in alloy steels for engineering purposes, generally in quantities up to…
A: Given: To find the most appropriate option.
Q: Excellent combinations of hardness, strength, and toughness are obtained from bainite. One heat…
A: The eutectoid composition of austenite is approximately 0.8% carbon; steel with less carbon content…
Q: One of the most common production techniques for metallic implants is lost-wax casting. Discuss the…
A: Lost wax casting, also known as investment casting is a casting process that makes use of wax…
Q: Calculate the critical radius of precipitates for which an Al--Mg alloy containing 10% Mg will be…
A: Solution:
Q: Problem 4: A carburizing process is done to a 0.30% C steel by introducing 2.2% C at the surface at…
A:
Q: The majority of automobile alloy wheels are to be produced from A356 aluminum alloy by low pressure…
A: Low pressure die casting (LPDC) is method of casting that generally takes place in the space where…
Q: Question-6. For solidification of a piece of FCC-metal at 860 °C. The melting point of the metal is…
A: GIVEN DETAILS: Ts=860+273=1133KTm=1260+2731533KL=-2.16×108J/m3Esf=0.126J/m2
Q: (a) What effects does it have on the microstructure? (b) How does this affect dislocation movement?…
A: Given: Quenching To determine: Define quenching. (a) What effects does it have on the…
Q: In precipitation hardenable alloy, like Duralumin, intermediate precipitates can form due to a.…
A: Solution:
Q: e) What is the% C ratio of two different steels with 80% and equal austenite content at 724 C?
A: Austenite: It is a solid solution of carbon and other constituents in a specific form of iron…
Q: -What is the reason for the name white cast iron?
A: How cast iron is produced. The pig iron that is raw form of iron is obtained from blast furnace…
Q: Which of the following statement(s) is/are correct? i. Rapid diffusion at hot-working temperatures…
A: Diffusion process is faster for the high temperatures and Hot working is a manufacturing process in…
Q: H.W: what are the bonding and structure of graphite, explain why graphite is a good solid lubricant.
A: Graphite is a form of Carbon which is arranged in 6-membered hexagonal rings as sheets with van der…
Q: Describe a method by which “ODS” alloys are produced and explain why it is not possible to cast…
A: Oxide dispersion strengthened (ODS) alloys, usually produced by a dispersion of nano-sized rare…
Q: The objective of the precipitation- hardening process is the formation of ---------- in the…
A: Precipitation hardening is a strengthening mechanism in which the strength of the material is…
Q: Determine the fraction of eutectoid cementite with 0.84 wt.% C in the iron-carbon alloy.
A:
Q: What are the effects of alloying elements on Fe-C binary phase diagram? And What are the main…
A: With the addition of different alloying elements to steel, the iron-carbon binary phase diagram is…
Q: On the right side of the iron-carbon diagram, what kind of metal is found when the carbon content is…
A: we observed from the iron-carbon equilibrium diagram below
Q: In the carburization treatment of steels, what are the diffusing species?
A:
Q: Explain two important differences between martensitic and pearlitic transformations.
A: Martensitic and pearlitic are two types of steel formed by different processes. Steel has mechanical…
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- Answer all the questions briefly 1. Define the term alloy and give an example. 2. Why is aluminum useful for aeroplane wings? 3. Why is cast iron useful for manhole covers? 4. Name the element that is added to iron to make mild steel. 5. Explain why copper might be suitable for the roof of a building.A form of boron nitride (BN) known as hexagonal boron nitride is used as a solid lubricant. Explain how this may be possible by comparing this situation with that encountered in two forms of carbon, namely diamond and graphite.What is the% C ratio of two different steels with 80% and equal austenite content at 724 C? please explain how to calculate
- 12 – On modern large aeroplanes structure where can we find a more frequent use oftitanium alloys? And why is that?Calculate the percentage of C and other alloying elements of the steel given the short designations 10CrMo910 and 45CrVMoW58Cite the phases that are present and the phase compositions for the following alloys: 85 wt% Ag–15 wt% Cu at 800°C
- The ratio of eutectoid cementite in the iron-carbon alloy is 0.104. Can the carbon content of this alloy be determined based on this information? If not, please explain why:Q. What are the advantages and disadvantages of metal furnaces compared with graphite furnaces? Q. What are the advantages and disadvantages of filaments compared with graphite furnaces? Q. How has the original design of the West rod been moified to minimize these disadvantages?Compare the carbonization and nitrification of steel
- On the right side of the iron-carbon diagram, what kind of metal is found when the carbon content is over 2 percent?What is the chemical composition upper limit of carbon for steel?A) 5%B) 0.022%C) 2.11%D) 4.3%E) 0.8% 2- Is it in liquid or semi-liquid state consisting of data and solidifies in a vacuum?A) tattooB) machiningC) pre-cookingD) castingE) turning 4- Which element has the lowest density and lowest atomic weight?A) magnesiumB) hydrogenC) heliumD) aluminumE) argonSuppose you are asked to manufacture a critical component based on a nickel-based super-alloy. The component must not contain any porosity and it must be chemically homogeneous. What manufacturing process would you use for this application? Why?