1. What is wrought iron in gray? 2.  Why does gray cast iron lack tensile strength? 3. What can you do to give gray wrought iron a little toughness?

Q: 2) Classify the cast irons and write what you know about the gray (lamellar graphite) cast irons.

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Q: Discuss the heat treatment process which uses rapid cooling of steel in oil or molten salt bath?

A: Heat Treatment where the  process as classified :-- Annealing  Normalizing Hardening Tempering Case…

Q: Explain the properties and structure of plain carbon steel.

A: Plain carbon steel is an alloy of iron and carbon, with carbon being the main alloying element. The…

Q: What physical reasons why reducing grain size is an effective alternative for increasing the…

A: Smaller grains have greater ratios of surface area to volume, which means a greater ratio of grain…

Q: 6. What is yield stress, how is it determined for metallic materials. Give the reason behind yield…

A: Yield stress is defined as the minimum stress at which a material will undergo strain without any…

Q: Compact Graphite cast iron was obtained from fast cooling rates. O F Strength and ductility of…

A: The above question we have to given  solutions

Q: Q1/ (a) How are steel classified as low carbon, medium carbon, high carbon steels? Give application…

A:

Q: etween gray cas

A: given: Give the difference between gray cast iron and nodular cast iron.

Q: What is the difference in material property of low carbon & high carbon steels?

A: Low carbon steel –in this steel carbon percentage is less than 0.30%.this steel is ductile in nature…

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: Which of the following heat treatment

A: Given; Following are the heat treatment process used for surface hardening of steels: Where,Heat…

Q: heat -treatment: a-Draw on the same graph paper the (Hardness- Distance from quenched end) curve for…

A: Vicker's Hardness Test: The Vickers hardness test is a test performed to quantify the hardness of…

Q: 1.What are the properties of cast iron affected by? 2. Why are alloying elements added to cast iron?

A: Cast iron is defined as an alloy of iron that contains 2 to 4 % carbon, in which there are varying…

Q: How a heat treatment process needs to be carried out to obtain a   martensite structure in steel?

A: Martensite form is a hard phase of steel. To obtain martensite structure the steel is heated to a…

Q: Figure 11.20 For cylindrical specimens of an oil-quenched 4140 steel, (a) tensile strength, (b)…

A:

Q: What are the different types of alloys? Explain their differences.  Give one example of each type.

A: ALLOY is a metal made by combining two or more metallic elements, especially to give greater…

Q: What is the carbon concentration of an iron-carbon alloy just below the eutectoid for which the…

A: Given: Fraction of total ferrite, mα = 0.8 Required: Co ( carbon concentration of an iron carbon…

Q: Write a short representation of 0.15% C, 10% Cr, 8% Ni, 2% Mo and a small amount of Flywheel high…

A: composition will be like0.15%C , 10%Cr , 8%Ni ,2%Mo

Q: a) Pure metals usually do not possess the right properties for most structural applications;…

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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: 18. What is the range of carbon concentrations for steels? 4.3...6.67% 0.8...6.67% 0.8...2.14%…

A: For low carbon steel , 0.05 to 0.26% For medium carbon steel, 0.29 to 0.54% For High carbon steel,…

Q: What are the properties of Alloy Steel and brief descriptions of it?

A: an alloy steel  may be defined as carbon steel to  which one or more elements are added so that it…

Q: Plot the Iron-Iron Carbide phase diagram and indicate all phases and critical temperatures.

A: Phase Diagram-it is a  graphical representation  of the effect of temperature and composition upon…

Q: Explain the normalizing process in the heat treatment of metals. b) What are the final properties…

A: Normalization process: It is a process of heating a material up to elevated temperature and then it…

Q: The stress/strain curve behavior for annealed and recrystallized metals can be described as…

A:

Q: Hello I have just a quick question I was wondering an expert could answer. Would you happen to know…

A: A BHN of 103.262 for an aluminum alloy suggests that it has a relatively moderate hardness. However,…

Q: oduced in smaller quantities

A: True.

Q: B- What are the differences bétween régular carbon steel and stainless steel and cast irons?

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Q: Q2/ List The Four Classifications of Steels? For Each, Briefly Describe their Properties And Typical…

A: Steels and cast iron are classified on the basis of percentage of carbon in pure iron. Steels are…

Q: I. High-compressive strength II. Good machinability III. Good resistance to wear and thermal fatigue…

A: The statements which are true for gray iron. Answer: I) High-compressive strength II) Good…

Q: Which of the following heat treatment is the softening process for steel? a. Cyaniding b.…

A: The so-called strengthening may be a heat treatment that's regularly connected after a…

Q: While there is about 2 times difference between tensile and compression strength in DD with spheroid…

A: (1) The strength of any material depends on the internal structure the materials. The difference…

Q: List two processes (annealing, quenching hot work, carburizing, ion exchange, cold rolling,…

A: Following are the processes - Precipitation heat treatment - This method helps to increase the…

Q: Examine a different metals and give new forms when alloying. Give at least 10 metal alloying.

A: Metal alloys combine a base metal with other elements to change its composition and strengthen its…

Q: 3. Mechanisms for Strengthening a. What purposes do strengthening mechanisms serve? b. Describe each…

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Q: Ductile cast iron is also known as ......... iron. O cluster O flakes O cementite O nodular

A: To choose: The correct answer. Explanation: Cluster iron: It is used in the electron transfer, and…

Q: What is the composition (wt% C) of a steel with AISI designation 1090? . Would this be considered a…

A: Iron is a common name for a large family of steel alloys. Metals can be cast directly into the mold,…

Q: Describe and compare between "Malleable Cast Iron" and "Pearlitic Malleable Castle Iron" with…

A: Cast iron is an alloy of iron, that has a carbon content of more than 1.7%. Commercially available…

Q: Iron carbon phase diagram extends up to 6.7% carbon only, why? (Mention two reasons)Single line…

A: Iron carbond diagram is also called as iron-iron carbide(Fe3C) phase equilibrium diagram. here as…

Q: Individual study skills:   Based on the micro structures, if parentage of carbon increased in plain…

A: Steels are the alloys with composition mainly carbon and iron and other constituents such as Ni, Cr,…

Q: Question Six SIsel is a very important material in modern day manufacturing processes. Answer the…

A:

Q: What is the appropriate proportion of aluminum in the bronze alloy to make this alloy hardenable by…

A: For the heat treatment of aluminium bronze alloy ,it should contain more than 9.5% of aluminum with…

Terminology in Metal Alloys

Metal is the pure chemical element you would find on the periodic table. 91 of the 118 elements on the periodic table are metals – which make them some of the most plentiful elements in the world.