Question 2 Estimate the corrosion rate (g/em².s), penetration rate (mm/yr), and Ecor (V) for a zinc tank containing oxygen free solution (pH =0). Assume both anodic and cathodic reactions are under activation control. [Zn"] = IM at 298 K. The atomic weight of zinc is 65.4 g/mol. Density of zinc is 7.13 g/cm'. in, Zn - 1×10' A/cm², ßa - 0.09 V/decade i, H=1×10° A/cm², ß - -0.08 V/decade -0.6 Zn Z 2 10- 10- 104 10 CURRENT DENSITY (A/cm) 10 104 POTENTIAL

Q: Create a flowchart about Corrosion and its types of Corrosion   Types of Corrosion 1.) Uniform…

A: The flow chart is the graphical representation of the topic using different shapes and arrows .

Q: What are the most effective corrosion control methods used in mechanical engineering applications,…

A: Corrosion is a natural process that transforms a refined metal into a more chemically-stable form…

Q: The rusting of automobile bodies is an example of uniform corrosion.   True False

A: Uniform corrosion - it is the type of corrosion in which the metal is open to the environment which…

Q: 2. Calculate the corrosion rate in mm/yr for an iron cell having an area 250cm² exposed to corrosive…

A:

Q: name two types of point defects and distinguish between them. List three methods of precenting…

A: Given questions are related to engineering materials.

Q: List two interstitial elements that can be added to a metal to improve its strength properties.  2.…

A: Answer 1. Molybdenum like chromium added to steel to increase the corrosion resistence and it also…

Q: Two uncoated copper plates are joined together using a bolt made of the same composition as the…

A: When two uncoated copper plates are joined together there may be chances of crevice corrosion may…

Q: Briefly explain why placing a PVC pipe nipple between a black iron water pipe and a copper pipe…

A: Corrosion is a process of destruction of the metal. There are galvanic corrosion, metallic…

Q: Calculate the ionic characterisation value for two elements with electronegativity of 0.7 and 3.98.…

A: two elements electronegativity x1=0.7 x2=3.98

Q: Current density of 0.1A/cm square is applied to the iron in an iron zinc corrosion cell.Calcualte…

A: Given Information: Current density in iron = 0.1 A /cm2 Surface area of iron 100 cm2 Current flowing…

Q: For the alloy of Brass and Titanium that are coupled in seawater, predict the possibility of…

A: In order to find which metal will corrode first we must have knowledge about galvanic series .…

Q: Describe and discuss two methods of protecting steel from electrochemical corrosion

A: ELECTROCHEMICAL CORROSION When electrons from the atom on the surface of the metal are transported…

Classification of types of corrosion

Corrosion is described as the process in which a certain element is degraded or deteriorated due to the presence of multiple chemicals in the surrounding. Generally, corrosion happens if all the subatomic particles on a metallic object are oxidized, for example, rust on iron structures. In air or water, metals lose electrons to other particles (like oxygen), leading to the formation of an oxide with the metal.