Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 13.10, Problem 14KCP
To determine
What is crevice corrosion? Describe an electrochemical
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In preventing corrosion of iron, a stronger reducing agent called sacrificial anode such as zinc is used to coat iron.
Select one:
True
False
Two uncoated copper plates are joined together using a bolt made of the same composition as the plates. The fastened design creates an overlap section. Suggest one possible risk of corrosion for this design and propose a solution.
1. (A) The heat treatment of a material (lets say "steel") will affect it corrosion performance? why/why
not?.
(B) A pice of Zn metal is exposed to three different environments as shown below. Which case will
have the highest corrosion rate and why?
山山山
Zn
Zn
Zn
HCL
HCL + Oxygen
HCL Onygen Fe
(C) Ddifference betweenActive and passive material/metals?
Chapter 13 Solutions
Foundations of Materials Science and Engineering
Ch. 13.10 - Prob. 1KCPCh. 13.10 - Prob. 2KCPCh. 13.10 - Which is in a lower energy state: (a) elemental...Ch. 13.10 - Give several examples of environmental...Ch. 13.10 - Prob. 5KCPCh. 13.10 - Prob. 6KCPCh. 13.10 - Prob. 7KCPCh. 13.10 - What is an exchange current density? What is the...Ch. 13.10 - Prob. 9KCPCh. 13.10 - Prob. 10KCP
Ch. 13.10 - Prob. 11KCPCh. 13.10 - Prob. 12KCPCh. 13.10 - Prob. 13KCPCh. 13.10 - Prob. 14KCPCh. 13.10 - Prob. 15KCPCh. 13.10 - Prob. 16KCPCh. 13.10 - Prob. 17KCPCh. 13.10 - Prob. 18KCPCh. 13.10 - Prob. 19KCPCh. 13.10 - Describe fretting corrosion.Ch. 13.10 - What is selective leaching of an alloy? Which...Ch. 13.10 - Prob. 22KCPCh. 13.10 - Prob. 23KCPCh. 13.10 - Prob. 24KCPCh. 13.10 - Prob. 25KCPCh. 13.10 - Prob. 26KCPCh. 13.10 - Prob. 27KCPCh. 13.10 - What are Alclad alloys?Ch. 13.10 - Prob. 29AAPCh. 13.10 - Prob. 30AAPCh. 13.10 - Prob. 31AAPCh. 13.10 - Prob. 32AAPCh. 13.10 - Prob. 33AAPCh. 13.10 - The emf of a standard Ni-Cd galvanic cell is...Ch. 13.10 - What is the emf with respect to the standard...Ch. 13.10 - Prob. 36AAPCh. 13.10 - Prob. 37AAPCh. 13.10 - Prob. 38AAPCh. 13.10 - Prob. 39AAPCh. 13.10 - Prob. 40AAPCh. 13.10 - Prob. 41AAPCh. 13.10 - Prob. 42AAPCh. 13.10 - Prob. 43AAPCh. 13.10 - Prob. 44AAPCh. 13.10 - Prob. 45AAPCh. 13.10 - Prob. 46AAPCh. 13.10 - Prob. 47AAPCh. 13.10 - Prob. 48AAPCh. 13.10 - Prob. 49AAPCh. 13.10 - Prob. 50AAPCh. 13.10 - Prob. 51AAPCh. 13.10 - Prob. 52AAPCh. 13.10 - Prob. 53AAPCh. 13.10 - Prob. 54AAPCh. 13.10 - A galvanized (zinc-coaled) steel sheet is found to...Ch. 13.10 - Prob. 56AAPCh. 13.10 - Prob. 57AAPCh. 13.10 - Prob. 58AAPCh. 13.10 - Prob. 59AAPCh. 13.10 - Prob. 60AAPCh. 13.10 - Prob. 61AAPCh. 13.10 - Prob. 62AAPCh. 13.10 - Prob. 63AAPCh. 13.10 - Prob. 64AAPCh. 13.10 - Prob. 65AAPCh. 13.10 - Prob. 66AAPCh. 13.10 - Prob. 67AAPCh. 13.10 - Prob. 68AAPCh. 13.10 - Prob. 69AAPCh. 13.10 - Prob. 70AAPCh. 13.10 - Prob. 71AAPCh. 13.10 - Prob. 72AAPCh. 13.10 - Prob. 73AAPCh. 13.10 - Prob. 74AAPCh. 13.10 - Prob. 75AAPCh. 13.10 - Prob. 76SEPCh. 13.10 - Prob. 77SEPCh. 13.10 - Prob. 78SEPCh. 13.10 - Prob. 79SEPCh. 13.10 - Prob. 80SEPCh. 13.10 - Prob. 81SEPCh. 13.10 - Prob. 82SEPCh. 13.10 - Prob. 83SEPCh. 13.10 - Prob. 84SEPCh. 13.10 - Corrosion is observed at the root of threads on...Ch. 13.10 - Prob. 86SEPCh. 13.10 - Prob. 87SEPCh. 13.10 - Prob. 88SEPCh. 13.10 - Prob. 89SEPCh. 13.10 - Prob. 90SEPCh. 13.10 - Prob. 91SEPCh. 13.10 - Prob. 92SEPCh. 13.10 - Prob. 93SEPCh. 13.10 - Prob. 94SEPCh. 13.10 - Prob. 95SEPCh. 13.10 - Prob. 96SEPCh. 13.10 - Prob. 97SEPCh. 13.10 - Prob. 98SEP
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- What are factors affecting electrochemical corrosion rate? Discussarrow_forward(a) What is the most likely form of corrosion for nuts and bolts in a galvanized steel plate shown in Figure 3.1. Figure 3.1 (b) What is the chemical cause of this type of corrosion? (c) Which non-destructive testing (NDT) technique(s) will you implement to evaluate the presence/severity of such damage and what repair would you perform on this plate? Why? (d) What design controls will you recommend to minimize this type of corrosion in future parts?arrow_forward(b) Figure 1 shows a schematic diagram of the corrosion mechanism which involved steel structure. air Na 0, Na OH он shield FelOH), H' H Fe e passive film steel Figure 1: Corrosion mechanism (i) Identify the type of corrosion according to the schematic diagram shown in Figure 1. Justify your answer by explaining the corrosion mechanism. (ii) Suggest the methods to prevent the corrosion shown in Figure 1.arrow_forward
- Discussion: 1- Define the corrosion and mention its types? 2- What is the effect of solution aeration on corrosion rate? 3- Compare corrosion rate for a metallic sample immersed in acidic solution with that immersed in a salt solution. 4- What is the effect of the exposure period on the corrosion rate? 5- Discuss the relationship between weight loss and time.arrow_forwardDiscuss intergranular corrosion and give examples for each type.arrow_forwardDescribe and discuss two methods of protecting steel from electrochemical corrosionarrow_forward
- Current Attempt in Progress X Incorrect. A piece of corroded steel plate was found in a submerged ocean vessel. It was estimated that the original area of the plate was 16 in.² and that approximately 2.9 kg had corroded away during the submersion. Assuming a corrosion penetration rate of 200 mpy for this alloy in seawater, estimate the time of submersion in years. The density of steel is 7.9 g/cm³. i 0.72 yrarrow_forwardQ3/ A: Answer the following: 1- when does fretting corrosion occur? 2- when does stress corrosion occur? 3-Explain effect of distance on the galvanic corrosion? 4- State the cause of the selective corrosion? 5- What Does Transpassivation mean?arrow_forwardPitting attack is decreased by an increase of velocity of corroding fluid. Explain why ? * Your answer Oxygen is a prerequisite for crevice corrosion to occur. Give the reason ?arrow_forward
- How to measure the corrosion inhibition efficiency of a metal? And how to perform the weight loss method?arrow_forwardExplain about the Erossion Corrosion in terms of :- -Factors influence -Mechanism -Affects(Surface of films, Effect of pH, Velocity Effects). -Preventions -Prone areas Summarized all the information by using MIND MAP.arrow_forwardDescribe the transport phenomena resulting in gas turbine hot corrosion in the presence of saline traces. What reaction generates the corrosive compounds?arrow_forward
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