Overvoltage-versus-log current density behavior

Assignment Help Mechanical Engineering
Reference no: EM13948290

1. The influence of increasing solution velocity on the overvoltage-versus-log current density behavior for a solution that experiences com- bined activation-concentration polarization is indicated in Figure 17.26. On the basis of this behavior, make a schematic plot of corrosion rate versus solution velocity for the oxidation of a metal; assume that the oxidation reaction is controlled by activation polarization.

2. Briefly describe the phenomenon of passiv- ity. Name two common types of alloy that passivate.

3. Why does chromium in stainless steels make them more corrosion resistant in many en- vironments than plain carbon steels?

Reference no: EM13948290

Questions Cloud

What guidance do the accounting standards : What guidance do the accounting standards and pronouncements provide to the CFO - how are relationships within a group determined?
Corrosion than noncold worked metals : 2. Briefly explain why cold-worked metals are more susceptible to corrosion than noncold- worked metals. 3. Briefly explain why, for a small anode-to- cathode area ratio, the corrosion rate will be higher than for a large ratio.
Calculate the accounting rate of return for each project : Calculate the accounting rate of return for each project the expected cash flows are the difference between cash revenues and cash expenses. Which project should be chosen based on the accounting rate of return?
Stick to the subject management control systems : Are the results well founded; theoretically and empirically. Theoretically, in that the analysis part links your results to theory- do your findings correspond to theory/ findings in previous studies or not. Empirically, in that results are clearl..
Overvoltage-versus-log current density behavior : The influence of increasing solution velocity on the overvoltage-versus-log current density behavior for a solution that experiences com- bined activation-concentration polarization is indicated in Figure 17.26. On the basis of this behavior, make..
Compute the corrosion penetration rate : Using the results of Problem 17.13, compute the  corrosion  penetration  rate,  in  mpy,  for the corrosion of iron in HCl (to form Fe2 + ions)   if   the   corrosion   current   density   is 8 X 10-5  A/cm2.
Create a formula to have excel compute annual savings : You do not need to put in personal information or actual values if you do not wish, but you must include some data for each of the various categories and income and expense line items.
Possible oxidation and reduction half-reactions : 1. (a) Write the possible oxidation and reduction half-reactions that occur when magnesium is immersed in each of the following solutions: (i) HCl, (ii) an HCl solution containing dissolved oxygen, (iii) an HCl solution containing dissolved oxygen..
What are the primary core american values : What are the primary core American values that this campaign is attempting to tap into. What values and aspirations does this campaign tap into relating to the subgroups of professional women and professional African American women

Reviews

Write a Review

 

Mechanical Engineering Questions & Answers

  Find the power to the air and how much air should be flowed

a power plant generates 150 mw of electrical power. it uses a supply of 1000 mw from a geothermal source and rejects

  A supersonic aircraft consumes 5320 imperial gallons of

a supersonic aircraft consumes 5320 imperial gallons of kerosene per hour of flight and flies an average of 14 hours

  Find the horizontal and vertical components of force

a 580 n uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal 6.00-m-long uniform 90-n

  What is the minimum diameter wire that can be produced from

what is the minimum diameter wire that can be produced from a 5 mm initial diameter annealed copper wire? k315 mpa

  Tpression and power stroke efficiencies are 90

according to data provided by motor trend the 2011 chevrolet silverado diesel hd is powered by an 8 cylinder diesel

  Determine the tower height required to remove 90 of co2

determine the tower height required to remove 90 of co2 from air by water in a dilute solution in a packed tower with a

  Calculate the acceleration in ms2 with which the iron ball

an iron ball is thrown into the atlantic ocean. density of iron is 7856 kgm3. density of salt water is 1020 kgm3.

  Composition cells-stress cells

Please include images of: composition cells, stress cells, concentration cells, coatings, inhibitors, sacrificial anodes, impressed voltages, anodic protection, cold worked grain structure and recrystallized grain structure.

  A pipe at the focal line receives 450 lbmhr of water at 200

a 300-foot-long 6-ft-wide parabolic trough concentrator receives normal solar radiation at 905 wm2. a pipe at the focal

  A 10 cm x 10cm sheet of material is 2 cm thick and made of

a 10 cm x 10cm sheet of material is 2 cm thick and made of a material with a conductivity of 0.5wmk?. one side of this

  The maximum stress developed in the spring is 150000 psi

a torsional helical spring is used to hold a door closed. the handle on the door is located 30 inches from the center

  A different production line has 15 defectives in a sample

the probability of a memory chip from a production line being defective is 0.04. find the probability that in a sample

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