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...
A steel product is manufactured by starting with raw material
(carbon steel wire) and then processing it sequentially through
five operations using machines A to E, respectively (see table
below). This is the only use that the five machines are put to. The
hourly rates for each machine are given in the table. Answer the
following questions. Use the original output rates to answer each
question (i.e., disregard any changes mentioned in previous
questions).
Operation:
1
2
3
4
5...
A steel product is manufactured by starting with raw material
(carbon steel wire) and then processing it sequentially through
five operations using machines A to E, respectively (see table
below). This is the only use that the five machines are put to. The
hourly rates for each machine are given in the table. Answer the
following questions. Use the original output rates to answer each
question (i.e., disregard any changes mentioned in previous
questions).
Operation:
1
2
3
4
5...
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)