Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 13.10, Problem 39AAP
To determine
The molarity of the solution.
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Question 16
Two sheets of a 1040 steel are joined together with an aluminium rivet, as seen in figure below. Determine the possible corrosion that might be
created as a result of this joining process.
Al rivet
Stress corrosion cracking
Selective leaching
Pitting corrosion
O Galvanic corrosion
Question 4 (a): The figure below shows the Pourbaix diagram of copper in water. Will copper corrode
in deaerated water? Justify your answer using the diagram.
2.2
E(v) 2
7 8 9 10 11 12 13 14 15 16
2.2
2
o 2 4 6
4 2
1.8
1.8
1.6
1.6
1.4
1.4
(b}
1.2
Cuo
1.2
1
0.8
Cutt
0.8
0.6
0.6
0.4
HCUO2
0.4
0.2
0.2
CuO2
0 2 4 6
(a)
Cu2O
Cu*
-0.2
Cu
-0.2
-0.4
-0.4
-0.6
-0.6
-0.8
-0.8
-1
-1
-1.2
-1.2
-1.4
-1.4
-1.6
-1.6
-1.8
-2 -1 0 1 2 3 4
-1.8
9 10 11 12 13 14 15 16
pH
5 6 7 8
(e) Copper
Two 0.5-cm-diameter rods of 1020 steel (σts = 395 MPa) are to be joined with a silver braze alloy 0.025 cm thick (σys = 145 MPa) to produce one long rod. The ultimate strength of this brazed structure is found to be approximately 345 MPa. If it is necessary to reduce the diameter of the rods to 0.25 cm with no change to the braze joint itself, will the strength (in MPa units) increase, decrease, or remain the same? If it changes, by how much?
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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- Question: 4 A sheet of copper is exposed to oxygen at 1000°C. After 100 h, 0.245 g of copper are lost per cm' of surface area; after 250 h, 0.385 g/ cm² are lost; and after 500 h, 0.560 g/ em are lost. i. Determine whether oxidation is parabolic, linear, or logarithmic ii. Calculate the time required for a 0.76-cm sheet of copper to be completely oxidized. The sheet of copper is oxidized from both sides.arrow_forwardHow to measure the corrosion inhibition efficiency of a metal? And how to perform the weight loss method?arrow_forwardWhy does chromium in stainless steel make them more corrosion resistance in many environments than plain carbon steelarrow_forward
- Identify two metals that do not corrode easily in the presence of oxygen and water. Explain why theydo not corrode. How are these metals useful? How do the uses of these metals depend on their resistance to corrosion?arrow_forwardIn order to plate a steel part having a surface area of 0.13 m² with a 0.05 mm. thick layer of nickel, (a) how many atoms of nickel are required and (b) how many moles of nickel are required? Electrical charge is transferred in metals by movement of valence electrons. How many potential charge carriers are there in an aluminum wire 1 mm in diameter and 100 m in length?arrow_forwardIn order to plate a steel part having a surface area of 200 in. 2 with a 0.002-in.-thick layer of nickel: (a) How many atoms of nickel are required? (b) How many moles of nickel are required?arrow_forward
- A 6061-T4 aluminum alloy is to be used to make a thin-walled cylindrical canister in which high-pressure chemical reactions will be performed. The design calls for a diameter of 50 cm, a length of 80 cm, and a maximum operating pressure of 5 MPa. Assume a safety factor of four is required (i.e., the maximum stress can never exceed onequarter of the alloy’s yield strength). a. What wall thickness is required to ensure safe operation? b. Is this wall thickness a maximum or a minimum? Explain. c. How do your answers change if the cylinder is made twice as long?arrow_forwardA corrosion cell is composed of a 20 cm² copper sheet and a 400 cm² iron sheet, with a current density of 0.7 A/cm² applied to the copper. Which material is the anode? What is the rate of loss of metal from the anode per hour?arrow_forwardCurrent 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_forward
- Q. Why is electrothermal atomization widely used in clinical applications? Q. What are the advantages and disadvantages of the standard addition method for the above applications?arrow_forwardChoose the correct answer. A material that has high bond energy and high bond stiffness is expected to have: high Young’s modulus, high melting point, and low coefficient of thermal expansion high Young’s modulus, low melting point, and high coefficient of thermal expansion high Young’s modulus, high melting point, and high coefficient of thermal expansion low Young’s modulus, low melting point, and high coefficient of thermal expansion High tensile strength of a material is usually associated with its: high electrical conductivity high magnetic permeability high hardness none of the above If a material exhibits a predominantly covalent bonding then the material is expected to have: high hardness high stiffness high melting point all of the abovearrow_forwardIn preventing corrosion of iron, a stronger reducing agent called sacrificial anode such as zinc is used to coat iron. Select one: True Falsearrow_forward
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