In the carburizing of 1018 steel...
The carbon concentration will be equal to or greater than 18% by
wt 2mm below the surface after 24 hours at 500C.
The carbon concentration will be equal to or less than 0.18% by
wt 2mm below the surface after 24 hours at 500C.
The carbon concentration will be equal to or less than 18% by wt
2mm below the surface after 24 hours at 500C.
The carbon concentration will be equal to or...
11- In general, how does adding carbon affect iron and carbon
steel properties? (name 3 properties and how the property changes
from the additional carbon)
12- Describe galvanic corrosion.
13- What is a heat resistant alloy?
14- Describe the difference between deformation and strain?
Discuss the variation of tensile strength, elongation, Vickers
hardness and fracture toughness with C (carbon) % for normalised
carbon steels. Write 500 words
Discuss the effects of carbon content on the
properties of steel. What is the percentage of carbon content
recommended for structural steel? (1 mark)
Give one situation where you would consider using
fiber reinforced concrete instead of normal reinforced concrete. (1
mark)
(b) How does the conjugation of carbonyl group to carbon-carbon
double bond affect the stretching frequency of carbonyl group?
3. (a) Give the definition and approximate range (in
wavenumbers) of:
(a1) Diagnostic region
(a2) Fingerprint region
(b) Explain why it is unreliable to draw a conclusion about the
presence of certain functional groups, based solely on the signals
from the...
For
each of the circumstances described below, discuss how it might
affect the calculated % yield and briefly explain why
a. A student does not filter the solution before proceeding to
reaction with H2SO4
b. in order to dry the alum product faster to obtain a final
mass, the student heated the beaker containing the solid on a hot
plate for 20 minutes
inorganic synthesis: Preparation of potassium Alum lab