Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 13.10, Problem 42AAP
To determine
Consider an oxygen-concentration cell that contains two zinc electrodes. These two zinc electrodes are immersed in a solution of water with low and high concentrations separately and externally connected by a copper wire. Find the following:
- (a) Which electrode will corrode?
- (b) The anodic and cathodic half-cell reaction equation.
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- How to measure the corrosion inhibition efficiency of a metal? And how to perform the weight loss method?arrow_forwardQuestion 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) Copperarrow_forwardDiscussion: 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_forward
- 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 corrosionarrow_forwardA steel column partly submerged in lake water is found to corrode severely just beneath the water surface . How would the corrosion pattern change if the steel column were submerged in a small pond instead of a large lake ?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_forwardWith the aid of sketch, explain how you would join a metal plate with a protective material for corrosion protection. State the materials involve.arrow_forwardIn galvanic corrosion, Select one: a. The combination of a large anode and small cathode is the potential dangerous and should be avoided. Ob. The further apart of the metals in the galvanic series, the greater is the severity of the corrosion attack O c. Installation of third metal that is anodic to two metals in a system worsens the galvanic corrosion. d. The rate of attack increases markedly at greater distances from the interface of the two metals.arrow_forward
- Pitting 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_forwardQUESTION 2: Consider 2 kg of a (30 wt % Sn – 70 wt % Pb) solder alloy. The phase diagram of the lead-tin alloy (Pb – Sn) is shown in the figure below. (a) Calculate the amount of each phase present in the alloy at 300 °C. (b) Calculate the amount of each phase present in the alloy at 150 °C. (c) Calculate the amount of each phase present in the alloy at 100 °C. 327°C 600 300 Liquid 500 232°C a + L 200 183°C B +L 400 18.3 61.9 97.8 300 100 a + B 200 |100 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) Temperature (°C) 20 Temperature ("F)arrow_forwardQuestion 3: : Estimate the corrosion rate (g/cm².s), penetration rate (mm/yr), and Ecorr (V) for a zinc tank containing oxygen free solution (pH =0). Assume the anodic reaction is under activation control and cathodic reactions is under activation and concentration control with the limiting current density for hy- drogen reduction on Zn is 5×10-5 A/cm?. [Zn**] = 1M at 298 K. The atomic weight of zinc is 65.4 g/mol. Density of zinc is 7.13 g/cm³. io, Zn = 1×10-7 A/cm², ßa= 0.09 V/decade io, H= 1×10-10 A/cm?, Bc= -0.08 V/decade icorr = 1.2×10-4 A/cm2arrow_forward
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