Quenching is employed to harden metallic materials. Explain the process of transforming PLAIN CARBON STEEL into MARTENSITIC STEEL. Explain the advantages of any three (3) quenching media.
Q: Q2: Determine the best quenching medium to produce a minimum hardness of HRC 40 at the center of a…
A: Solution: Note: Dear Student! As per our guidelines, we are only allowed to answer a single…
Q: Explain the connection between notch strengthening and material ductility; which is more likely to…
A: Notch strengthing occurs in the case of ductile material .stress concentration increases by creating…
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Q: Quenching is employed to harden metallic materials. i. Explain the process of transforming PLAIN…
A: Explanation of Plain carbon steel to Martensite Advantages of Quenching Media
Q: in a tabular format compare microstructure,for different cast irons and steel
A: Types Nature Form Comments Ferrite Soft and ductile In the form of flakes Cementite(Fe3C)…
Q: (b). Describe with the aid of an illustration, heat treatment procedures for steels and state the…
A: (i) Full annealing: Annealing is the process used to relieve stress, increase ductility, soften the…
Q: Graphitization increased with increasing cooling rate. F The high temperature stability of alloys…
A: 1. The graphite formation in cast iron is called graphitization. It occurs when the material is…
Q: Explain why a 92% copper – 8% nickel can or cannot be age hardened.
A: Age hardening: Age hardening is a heat treatment process that is used to increase the yield strength…
Q: Explain how does the reduction of the grain size increase the strength of the single-phase metals?
A: Single phase metals are plastically deformed due to motion of dislocations in the grains. This…
Q: Is it true that Martensite is tempered because it is too strong? Why or Why not
A: Initially, martensite is harder and brittle phase when steel is sudden cool down. When the hardness…
Q: iron-carbon alloy
A: According to above figure, the tabulation for Brinell hardnesses and…
Q: Figure 11.20 For cylindrical specimens of an oil-quenched 4140 steel, (a) tensile strength, (b)…
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Q: Calculate the required weight of carbon necessary to obtain 12 ton of cast iron of the eutectic type…
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Q: Briefly describe how precipitation hardening happens in Al alloys (how the microstructure evolves as…
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…
Q: The strength of heat treated steel decreases with increasing tempering temperature
A: Statement is True Statement is True
Q: in a tabular format compare composition and heat treatment for different cast irons and steels
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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: 1. What is Age Hardening and how does it differ from Quench Hardening?
A: Age Hardening
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: Estimate the quench rate (in °C/s) needed to avoid pearlite formation in 1.13 wt % C steel. Note…
A: Question is based on material science and can be solved as
Q: a) Explain the normalizing process in the heat treatment of metals. b) What are the final properties…
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Q: Q2. Explain hot working process with respect to microstructure. Also draw the diagram of…
A: When any process over material or any metallic member is above the recrystallization temperature of…
Q: i) Normalizing of a plain carbon steel containing 0.8 wt % C, (ii) Quenching of a plain carbon steel…
A: 0.8 wt % carbon belongs to hypereutectoid. (i) Normalising: (a) Raising the temperature approx 60 oC…
Q: The needle form of mullite offering substantial increasing in structural strength and heat…
A: Mullite is present in the form of needles in porcelain. It is produced during various melting and…
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Q: What is high copper content alloys and what is its significance?
A: The (copper) alloys with carbon percentage 96 to 99% termed as High copper alloys
Q: Can aluminum be quench-hardened? Why or why not?
A: Quenching is one of the heat treatment processes used to increase the hardness of the metals and…
Q: Plot the Iron-Iron Carbide phase diagram and answer the following: a) Show the heating ranges for…
A: Phase Diagram- It provides the information concerning the phase changes in many alloys system…
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: Briefly explain the heat treatment steps of a tool steel by use of proper drawings and explain why…
A: Tool steel Tool steel is the type of steel which has controlled chemical composition and have…
Q: A 44-diameter cylindrical steel speciemen is to be heat treated such thath the microstructure…
A: A 44-diameter cylindrical steel speciemen is to be heat treated such thath the microstructure…
Q: 1) Give a brief explanation why the hardness of hardend steel will decrease with tempering
A: As per our guidelines we are suppose to answer only first question. 1. Tempering is done after…
Q: 1.Mention four quenchants and describe how each of them affect the strength of the material being…
A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…
Q: Explain and/or describe the following microstructures of iron/steel , how they affect the iron/steel…
A: Ferrite: The microstructure of steel is called ferrite when a very less number of interstitial voids…
Q: In your own words describe the following heat treatment procedures for steels and, for each, the…
A: Full Annealing:- The general purposes served by full annealing are (i)alteration of ductility and…
Q: -.. .is a technique by which both surface hardness and fatigue life are enhanced for steel alloys.
A: case hardening is a method where we instill hardness on the surface while keeping the inside soft.…
Q: Compare the process to produce cast irons in Figures 4 (a) and (b). Justify why the cast iron in…
A: Yes, Figure b has more ductile than grey cast iron. The creation for pliable iron is more intricate…
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: 2) Explain the reason for the quenching cracking that may occur when hardening some parts. By…
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Q: With suitable sketch explain the heating and cooling curves for pure iron.
A: Given: Pure Iron To Find: With a suitable sketch explain the heating and cooling curves for pure…
Q: What are the advantages of Ni-superalloys over austenitic steels in high temperature applications?…
A: There are various advantages of Ni-superalloys over the austenite steels in high temperature…
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…
Q: Quenching a hypereutectoid steel from a two-phase region of austenite and cementite; the phases…
A: Given: Quenching a hypereutectoid steel from a two-phase region of austenite and cementite; the…
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- Describe the process conditions necessary to create a)a cored microstructure and b) a non- cored microstructure.?Estimate the quench rate (in °C/s) needed to avoid pearlite formation in 1.13 wt % C steel. Note that the quench rate is ΔT/tIn a tabular format, compare (a) Composition and heat treatment, (b) microstructure, for different cast irons and steels.
- Make use of drawings of segments of the Fe-Cr phase diagram to illustrate the reason for theexistence of ferritic, martensitic and austenitic stainless steels by also noting the influence ofspecific alloying elements where applicable.Explain why a 92% copper – 8% nickel can or cannot be age hardened.Quenching a hypereutectoid steel from a two-phase region of austenite and cementite; the phases present in the microstructure are
- Explain the reason for the quenching cracking that may occur when hardening some parts. Describe the alternative methods applied to prevent this situation by showing them on a single figure.How a heat treatment process needs to be carried out to obtain a martensite structure in steel? answer quickly?Is it possible to produce and iron-carbon alloy of eutectoid composition that has a minimum hardness of 200HRB and a minimum ductility of 25% RA? If so, describe the continuous cooling heat treatment to which the alloy would be subjected to achieve these properties. If it is not possible, explain why.