What temperature must the specimen be heated

Assignment Help Mechanical Engineering
Reference no: EM13708197

A 1.5-kg specimen of a 88wt% Pb-12wt% Sn alloy (Animated Figure 9.8) is heated to 220°C; at this temperature it is entirely an alpha-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being the alpha-phase. This may be accomplished either by heating the alloy or changing its composition while holding the temperature constant.

a) To what temperature must the specimen be heated? Answer in°C.

b) How much tin must be added to the 1.5-kg specimen at 250°C to achieve this state? Answer in kg.

Reference no: EM13708197

Questions Cloud

Mrna molecule that specifies the protein : Imagine a protein that functions in the ER but requires modification in the Golgi apparatus before it can achieve that function. Describe protein's path through the cell, starting with mRNA molecule that specifies the protein.
What are the implications for the management : What is the critical path? What are the implications for the management of the critical path and what are the implications for tasks not part of the critical path? Discuss in terms of flexibility.
Take note of all the drug advertising : Drug advertising is so common that many patients today have already self-diagnosed their symptoms by consulting "Dr. Google" and have already selected the medication they want based on the advertising they have seen.
Align with two mounting holes in a steel plate : Two bosses in a plastic bezel must align with two mounting holes in a steel plate. The steel plate holes are 8 inches apart center to center. What should be the center to center distance of the core pins that make bosses of the plastic part?
What temperature must the specimen be heated : A 1.5-kg specimen of a 88wt% Pb-12wt% Sn alloy (Animated Figure 9.8) is heated to 220°C; at this temperature it is entirely an alpha-phase solid solution. The alloy is to be melted to the extent that 50% of the specimen is liquid, the remainder being..
Liquid petroleum gas to fuel spark-ignition engines : It is proposed to use Liquid Petroleum Gas (LPG) to fuel spark-ignition engines. A typical sample of the fuel on a volume basis consists of: 70% propane C3H8; 5% butane C4H10; and 25% propane C3H6. The higher heating values of the fuels are 50.38 MJ/..
Monochromatic x-radiation having a wavelength : The metal niobium has a BCC crystal structure. If the angle of diffraction for the (211) set of planes occurs at 2(theta) =75.99 (first order reflection) when monochromatic x-radiation having a wavelength of 0.1659 nm is used, compute the atomic radi..
Equation of state and substitute for temperature : An important concept in using CFD code to solve the Navier-Stokes equations is that the variables set that are solved for are the ones appearing in the time derivative terms. These are called conservative variables.
Best development process of a new product : With the help of taking one product in mind what are the steps you will apply in the best development process of a new product?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  A lear jet flying at 150 kcas assume no errors due to

a lear jet flying at 150 kcas assume no errors due to compressibility so lets assume 150 keas at sea level on a

  For fluid flow through a tube with a uniform surface heat

for fluid flow through a tube with a uniform surface heat flux how does the mean temperature of the fluid vary with

  How many nmi would airplane be off from the original target

An airplane flying at 185 kts with heading 320? Towards a target 300 nmi (nautical miles) away, experiences a steady wind of 23 kts from 020? If the time, without wind, to fly to the target was t.

  If 600 galmin are being pumped calculate the horsepower

a pump is being used to transfer water from an open tank p1 0 to one having air at 75 psig p2above the water. if 600

  Assuming this carbon has a bulk density of 25 lbft3 and if

a polluted air stream flowing at 12000 acfm at 90 degf and 1 atm has a concentration of 500 ppm of ethylbenzene c8h10.

  Wind-tunnel speed should be selected for the model study

A 1:10 scale model study of an automobile is proposed. A prototype speed of 100km/h is desired. What wind-tunnel speed should be selected for the model study? Comment on the advisability of such a speed selection.

  A high strength steel has a yield strength of 1460 mpa and

a high strength steel has a yield strength of 1460 mpa and a kic 98 mpa m12. calculate the size of a surface crack that

  Determine an expression for the number of cycles to failure

Determine an expression for the number of cycles to failure, Nf if the initial crack size is a0. State any assumptions you make.

  What is the difference between steady state and non-steady

what is the difference between steady state and non-steady state diffusion processes? use mathematical expressions to

  Steam is generated in a boiler if the initial water enters

steam is generated in a boiler. if the initial water enters the boiler as saturated water at 1000 psi a h542.4 btuibm

  Consider the addition of an afterburner to turbojet engine

Air at 22 kPa, 220K and 250 m/s enters a turbojet engine in flight at an altitude of 10,000m. The diffusor slows the air down to a very low speed relative to its inlet. The pressure ratio across the compressor is 12. The turbine inlet temperature is ..

  Determine the rate of steam flow

A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical loss..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd