What is the reason for martensite hardness?
Q: Excellent combinations of hardness, strength, and toughness are obcained ficm bainite. One heat…
A: Eutectoid steel contains about .8% carbon in a pure iron-carbon alloy.in alloy steels the eutectoid…
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…
Q: Explain about upper critical temperatures, Name the steels that upper critical temperature decreases…
A: Upper critical temperature; The upper critical temperature is the point below which cementite or…
Q: What are they and what is their application in the production of the following steels: TTT…
A: TTT diagram : TTT diagram stands for time temperature transition it gives us detail about the time…
Q: 1.0% of euctectoid carbon steel was slowly cooled from 900C to a temperature just below 723C 1.…
A: 1.0% of euctectoid carbon steel was slowly cooled from 900C to a temperature just below 723C 1.…
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: which one harder pearlite producing by normalizing or by and annealing and why?
A: To change the mechanical property of the material, the heat treatment processes are employed. There…
Q: The obtained microstructure of annealing process is Bainite O Coarse pearlite O Martensite O Fine…
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Q: b) Indicate corresponding cooling rates ( fast, mid-range, slow) and heat treatment c) Indicate a…
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Q: Is it correct to say Thick pearlite is not as strong as thin pearlite?
A: Thick pearlite is also known as coarse pearlite. And thin pearlite is known as fine pearlite.
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: Suppose that a ductile iron (100-70-03, air quenched) has a tensile strength of 800 MPa. What…
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Q: a) Based on Table Q2, describe the relationship of hardness and ductility. b) Suggest two methods to…
A: for solution refer below images.
Q: What is strain hardening, how does it affect toughness. Give the Hollomon's equation and strain…
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Q: Draw Iron - Iron Carbide Phase diagram and show the following: 1- Temperature, phases and carbon…
A: As per the guideline only first 3 sub-parts should be answered.
Q: 1.50% Pearlite, 50% Tempered Martensite 2.50% Bainite, 45% Martensite, 5% Austenite
A: To find: Steps to attain the following phase
Q: What is the% C ratio of two different steels with 80% and equal austenite content at 724 Celsius?
A: Answer is 0.3
Q: What is the hardest metal? What is it's Vicker's Hardness score?
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Q: The strength of steel is given as 225MPa. That of a ceramic is indicated as 200-800MPa . Explain the…
A: STEEL - Steel is an alloy of iron with few fraction of carbon which enhances its strength and…
Q: 12- To calculate Brinell hardness number (BHN) used the equations *
A: The Brinell hardness number is a number which is used to indicate the strength of any material in…
Q: 3000 kg, 10mm Steel Ball Brinell Hardness Reading of 421 is equal to what Rockwell C Reading?
A: Write the given data. m=3000 kgd=10 mmBHN=421
Q: Abul Khair (AKS) steel industry produced steel sample (austenite phase) which has 1.4% C for some…
A: As From the Iron -Carbon Diagram we had concluded that ***As per our company policy we are supposed…
Q: а) Briefly describe the mechanical properties of those microstructure and suggest how to obtain the…
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Q: 5-T6) was more ductile?
A: given: Which material (i.e., C1045-CF, Cast Iron, AL7075-T6) was more ductile? Explain the effect of…
Q: 3-Miled steel can be converted into high carbon steel by which of the following heat treatment…
A: Different heat treatment processes are - Normalizing - In this process, the specimen is heated…
Q: 1) To obtain a ferritic-spherical carbide (cementite) internal structure in super-eutectoid steels…
A: Annealing is a heat treatment process in which metal or alloy is heated to a certain temperature and…
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: Austentitic stainless steel's are not hardenable by cold working however Austentic stainless steel's…
A: Given :- Austentitic stainless steel's are not hardenable by cold working however Austentic…
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: 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: Cementite solid phase is very hard and ductile.
A: Cementite is also called iron carbide in which 6.67%is C and 93.3% is Fe by weight percentage.…
Q: Question Six SIsel is a very important material in modern day manufacturing processes. Answer the…
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Q: - The microstructure for AISI 1080 carbon steel after heat 760°C then For AISI 1080 carbon steel,…
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…
Q: Which of the previous 3 materials has the lowest strength? O Martensite Spheriodite Pearlite O…
A: When the steel is heated above the re-crystallization temperature, held at that temperature and then…
Q: The TTT diagram for a 1076 eutectoid steel is given: What is the heat treatment process to form 50%…
A: GIVEN the TTT diagram for a `1076 eutectoid steel .the heat treatment process to for 50% coarse…
Q: Bainite is an intermediate of pearlite and martensite in terms of hardness.
A: Bainite is the crystalline microstructure of steel and it forms when steel is alloy to cool faster…
Q: 1.9 kg of austenite containing 1.50 Wt% C is cooled from 1200 degrees C to a temperature just below…
A: Given: The mass of the austenite, m = 1.9 kg The wt% of C in austenite = 1.5% The temperature of…
Q: نقطة واحدة The tensile strength of wrought alloys are higher than cast alloys, as a result of إجابتك…
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Q: What does the process of temper drying do for hardened carbon steel?
A: Heat treatment is the manufacturing process where we heat the metal at a high temperature, holding…
Q: What is the annealing process to obtain a ferritic-spherical carbide (cementite) internal structure…
A: Spheroidizing or spheroidizing anealing is the annealing process to obtain a ferritic-spherical…
Q: Calculate the ductility of this steel alloy in %EL.
A:
Q: Why does the hardness decrease at 600 ° C after rising when the tempering process
A: Tempering is a heat treatment process, which is used to increase the toughness of iron based alloys.…
What is the reason for martensite hardness?
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- Is it true that Martensite is tempered because it is too strong? Why or Why notWhat is the marcosopic structure of metallic in low carbon and then high carbon steels .While there is about 2 times difference between tensile and compression strength in DD with spheroid graphite, there is about 3 times difference in DD with lamellar graphite. According to this: a) What is the reason for the difference between compressive and tensile strengths in cast irons? Please explain. b) Why is this difference much greater in lamellar graphite cast iron? Please explain. c) Write down the general properties of cast irons
- 3000 kg, 10mm Steel Ball Brinell Hardness Reading of 421 is equal to what Rockwell C Reading?Bainite is an intermediate of pearlite and martensite in terms of hardness.Bainite phase and pearlite phase have different mechanical properties due to its structure differences. Discuss the hardness and tensile strength of these 2 phases using isothermal transformation temperature diagram.
- Compute the volume percent of graphite VGr in a 3.3 wt% C cast iron, assuming that all the carbon exists as the graphite phase. Assume densities of 7.9 and 2.3 g/cm3 for ferrite and graphite, respectively. a. what is the weight fraction Wa? b. what is the weight fraction of graphite? c.what is the volume fraction of graphite?A 1070 steel is heated to the austenite region and air cooled. Calculate the hardness of this steel. Sketch the final microstructure...What is the% C ratio of two different steels with 80% equal and equal austenite content at 724 C?
- 1.0% of euctectoid carbon steel was slowly cooled from 900C to a temperature just below 723C 1. Calculate the wt% of cementite at the proeutectoid cementite 2. Calculate the amount of euctectoid cementitePlease don't provide handwrittem solution ..... In carbon steels, what is “pearlite”? In your explanation, describe both its composition and structure.Is it correct to say Thick pearlite is not as strong as thin pearlite?