Effect on the corrosion rate of carbon steel, Mechanical Engineering

Assignment Help:

Q. Effect on the corrosion rate of carbon steel?

The velocity of the acid has a significant effect on the corrosion rate of carbon steel. The recommended velocity range for piping systems is 1 to 3 ft/s (0.3 to 0.9 m/s). Surface irregularities causing turbulence or increased velocities may also result in accelerated localized corrosion.

Temperature dependence of sulphuric acid corrosion on carbon steel may call for an awareness of acid piping and vessel systems which are intended for outside service where solar heating may increase metal temperatures above the iso-corrosion curve.

Hydrogen grooving is another form of localized corrosion and tends to occur on vertical or inclined surfaces. As corrosion occurs, hydrogen evolves and can combine to form tiny bubbles. As these bubbles rise, following preferential paths, they rub against and disrupt the soft sulphate protective film thus exposing the carbon steel to further corrosion and forming characteristic grooves.


Related Discussions:- Effect on the corrosion rate of carbon steel

Parts of wilson hartnell governor, what are the parts of wilson hartnell go...

what are the parts of wilson hartnell governor with their designation?

State constructive solid geometry, Constructive Solid Geometry (Csg or C-Re...

Constructive Solid Geometry (Csg or C-Rep) A CSG model is based on the topological notion that a physical project object can be divided into a set of primitives that can be com

Switch assembly, Switch Assembly: A switch assembly consists of four ...

Switch Assembly: A switch assembly consists of four rails. The two outer rails are known as the stock rails. The two inner rails are called tongue rails. One stock rail and o

Can you explain investment casting, Q. Can you explain Investment casting? ...

Q. Can you explain Investment casting? -Investment casting produces very high surface quality and dimensional accuracy. -Investment casting is commonly used for precision eq

Shear force and bending moment diagrams and contra flexure, Draw the shear ...

Draw the shear force and bending moment diagrams for the beams shown in Figures 4 and 5. Also find the maximum shear force, bending moment and the points of contra-flexure

Sizing a Motor that has a cable Pulley, I am stumped as to how to figure th...

I am stumped as to how to figure this out. It is a motor with a cable pulley to move the carriage in a wave tank. (the part that pulls the boat, etc). I have to build it on paper

Classification of steam engine , CLASSIFIC A TIO N: (1 )  In acco...

CLASSIFIC A TIO N: (1 )  In accordance to Cylinder Axis: Engine can be vertical or horizontal. (2 )  In accordance to action of steam: Can be single acting or doub

General reasons for defects, GENERAL REASONS FOR DEFECTS The imp...

GENERAL REASONS FOR DEFECTS The importance of weld quality is increasingly felt as we go ahead with the fabrication of sophisticated products using higher strength mater

Choke in motorcycle, Choke: This is incorporated in the main air passage a...

Choke: This is incorporated in the main air passage and used to control the air quantity to supply rich mixture. While starting an engine, the choke shuts off the air supply to th

Show environmental conditions for plant, Q. Show Environmental Conditions f...

Q. Show Environmental Conditions for plant? Data on the following environmental factors are required to support the design layout and choice of the most appropriate orientatio

Write Your Message!

Captcha
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