Ans. 4.44 x 10 rapid quenching from 800 K.
Q: As heat is added at a constant rate, the heating curve forms distinct regions. What are they?
A: The heating curves are given.
Q: The value of dryness fraction at -1 critical point for water-steam phase ,transformation may be 1…
A: Solution: Note: Dear Student! As per our guidelines, we are only allowed to answer a single…
Q: Q2: Determine the best quenching medium to produce a minimum hardness of HRC 40 at the center of a…
A: Minimum hardness HRC 40 d =3.75cm 4320 steel
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: Show that for homogeneous nucleation during solid state transformation the critical radius r* is…
A: Nucleation is defined as the localised development of an unique thermodynamic phase in a gas,…
Q: What is the treatment process for chilled liquid?
A: Steps for treatment process of chilled fluid: 1.Use of inhibitors to stop contamination of chilled…
Q: .For a steel alloy with .3% carbon, what would the percent of each phase be at 730°C and 725°C?
A: Let us consider a portion of Iron-Carbon diagram as shown below, For the 730 °C and 0.3% of carbon,…
Q: Differentiate between equillibrium and non equillibrium cooling curve
A: The cooling curve is the graph showing phase change of material with respect to temperature of the…
Q: Q2. Explain hot working process with respect to microstructure. Also draw the diagram of…
A: Hot working process with respect to microstructure is discussed below.
Q: To what temperature should hypoeutectoid plain carbon steel be heated for hardening purposes…
A:
Q: Q3: A: 40 wt% Sn-60 wt% Pb alloy at 220°C, determine the phases present?
A:
Q: Q3/A) answer the following? 1- Define the Eutectic reaction? 2- What is the Grey Cast Iron? 3- Why…
A: A) 1) Eutectic reaction- it is a three phase reaction in which cooling transform the liquid into…
Q: During slow cooling, the resulting microstructure for hypo-eutectoid steel is . .Wwhile for…
A: While quenching the austenite which does not transform in to martensite is called as retained…
Q: Calaulate reaction
A:
Q: For the preceding problem, use the inverse lever rule to determine the proportions of liquid and…
A: Dear Students
Q: ) Is it advisable to have austenite in the HAZ (Heat Affected Zone)? Explain?
A: Explanation- Whenever a material (steels) welds with a specific welding process, there will heat…
Q: TOC) P(kPa) u(kJ/kg) Phase description 175 2524.5 325 4000 325 Saturated liquid
A: Given: P= 175 kPa u= 2524.5 kJ/kg Note: Use APPENDIX 1 (PROPERTY TABLES AND CHARTS (SI UNITS))…
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: Given an iron-carbon alloy that is heated at 770°C and has been held at this temperature long enough…
A: As per Bartelby guidelines for answering multiparts, i am answering only three subparts. Given:…
Q: Study how Heat treat ment process Cannealing normalizing aud hardening) are effeck ot changed the…
A: Annealing can be used for the Softening of Curponickel. Annealing can be used for Improving the…
Q: Give an example of Quasi-equilibrium and nonquasiequilibrium, explain the compression processes.
A: A process during which the system only deviates from equilibrium by an infinitessimal amount One…
Q: i) Justify the reason that normalizing heat treatment process is less expensive compared to…
A: Annealing is a heat treatment process in which the microstructure of the material is changed as per…
Q: -ystallization temperature ting point mperature ture ranges
A: Stress reliving process is done in angling process below the Recrystallization temperature
Q: Define the term equilibrium requirements?
A: Equilibrium: Equilibrium of a body is a state in which the net forces acting on the body in all the…
Q: If 12 m 3 of nitrogen at 30 C and 125 kPa abs is permitted to expand isothermally to 30 m3, what is…
A:
Q: Q4: Answer with True or False: 1-Cooling rate when quenching steel in agitated water is faster than…
A: Note: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts…
Q: From an experiment, the higher heating value of ethanol was obtained to be 1350 KJ/mol. a. Compute…
A: Ethanol Reaction: C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(l) Given, △E = 1350KJ/mol at 25oC = 298 K…
Q: What is the difference between constant heating rate, moderated heating rate and isothermal profile
A: Solution: The difference between constant heating rate, moderated heating rate and isothermal…
Q: In white cast iron, the carbon is in combined form as .......... O cementite iron O silicon оос…
A:
Q: Cold working is done in ambient temperature while hot working is done at around 600 degree Celsius…
A: Forming process Forming, the forming of metal is a process of metalworking by mechanical deformation…
Q: re. Assume that the sy riant, in composition; n3B sition. for isothermal equilil
A: solution of above problem is below:
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: A) Draw the Iron Carbon Phase Equilibrium Diagram? B) Define the Arrest points?
A: A)The Iron Carbon Phase Equilibrium Diagram
Q: Determine the composition and fraction with 50% Ni and 1300 ° C
A:
Q: Explain briefly How rock (iron ore) converted to iron using the blast furnace.
A: The most commonly obtained rock (iron ore) from beneath the earth is either Fe2O3 Haemaetite or…
Q: The lead-tin (Pb-Sn) is an eutectic type of phase diagram. At 183 °C, liquid (61.9 wt.% Sn), solid…
A:
Q: Write all names of part and component in the pecture below
A: Names in the picture
Q: igher heating value of ethanol was obtained to be 1350 KJ/mol. Compute for the heat of formati
A: given:the heigher heating value of etanol was obtained to be 1350kj/mol∆HV of water at…
Q: Q2)) Answer the following briefly: A) Why the primary iron product (pig iron) that resulted from the…
A: Dear student as per the policy i can solve only 3 subparts for you so request to post the remaining…
Q: ind reactions
A: for equilibrium of the system net force and net moments on the system should be zero
Q: The cementite phase in the Iron-Carbon system is metastable. True/False
A: The given statement is true.
Q: (a) What is the difference between the states of phase equilibrium and metastability?
A: Solution: Note: Dear Student! As per our guidelines, we are only allowed to answer a single…
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.…
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- During a quenching process on a TTT diagram, we can transform pearlite into bainite. True or false?Use the TTT diagram for O1 Tool steel provided above to estimate the amounts ofpearlite and martensite formed in the quenched heat-treated samples.Indicate whether True/False. a) Interstitial solutes are effective in hardening FCC alloys but less effective than in BCC alloys.
- 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/t8c. describe the extration of elemental composition; s from solid sample. Explain what major concern of the extration is and list two of the methods that can solve the problem?What can be done to speed up the quenching rate in any liquid?
- A 44-diameter cylindrical steel speciemen is to be heat treated such thath the microstructure througout will be at least 50%martensite. We are to decide of several alloys will satisfy this criterion if the quenching medium i moderatly agitated. A) is oil B) is waterSuppose that a ductile iron (100-70-03, air quenched) has a tensile strength of 800 MPa. What diameter impression would you expect the 3000 kg load to produce with the 10mm diameter ball?Why does the hardness decrease at 600 ° C after rising when the tempering process