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What is Spheroidsing
Spheroidsing is the method that applies more to the hypereutectoid steels (above 0,8% C). The process includes heating the metal to between 600oC and 650oC and holding it at the selected temperature for a period of time the cementite alters from a lamella formation to a formation based on an alpha ferrite matrix with particles of spheroidal cementite (Fe3C) are fixed. This resulting steel has better ductility and toughness compared to the original steel with decreased hardness and strength.
Methane containing 4 mol% N 2 is flowing through a pipleline at 105.1 kpa and 22 °C. To check this flow rate, N 2 at the same temperature and pressure are introduced to the piple
Wet air containing 4.0 mole% water vapor at 76°F and 14.8 psia is passed through a column of calcium chloride pellets. The pellets absorb 97% of the water and none of the other con
An enclosure haves Helium at a pressure of 1.3 atm and has two vertical heating surfaces, which are keeps at 80 and 20 oC respectively. The vertical surfaces are 40x40 cm and are s
Materials used for DC applications are: Iron and low-carbon steels (maximum carbon 0.05 %) • Iron-Nickel alloys (Permalloy) • Iron-Cobalt alloy (Permendur)
Positive and Negative Photo resist There are two types of photo resist: positive and negative. For positive resists, the resist is exposed with UV light where the underlying ma
full process of ammonia synthesis
prove that work is a path function
why hard ness of bore well water is less than sea water? justify.
Check in and checkout procedure a. Location of Key: Enquire from the technicians as to who opens the laboratory. Does the lab staff have to take the keys from the office or
A company is using a piece of equipment which originally cost $30,000. The equipment has been in use for 5 years, and now has a net realizable value of $6000. At the time of instal
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