WorksheetsCE Mat - Charpy
Total questions: 11
Worksheet time: 4mins
Typical structural steels (including A36 and A992) have a % carbon content of approximately ...
0.025%
0.25%
2.5%
25%
In general, increasing the carbon content of a steel....
Increases ductility
Decreases strength
Increases the modulus of elasticity
Increases hardness
Select the raw materials that are used to create pig iron.
Iron Ore
Pig Hooves
Limestone
Coke
Air/Oxygen
The purpose of the Charpy Impact test is to determine a metal's ...
modulus of elasticity
ultimate tensile strength
toughness
ultimate compression strength
The Charpy Impact Test machine measures the ...
the energy required to fracture a sample of metal
the modulus of elasticity of the metal
the exact carbon content of the metal
the metals strain prior to fracture
the stress in the metal prior to fracture
In our Charpy lab, the metal specimens that we test will have varying ... (select all that apply)
Chemical Compositions
Heat Treatments
Notch Sizes
Temperatures
By testing the toughness of the same metal at different temperatures, we can identify that metal's ...
carbon content
chemical composition
heat treatment
ductile to brittle transition point
There are two ways to ID a metals ductile to brittle transition point. One way to identify the transition is to look at a graph of ...
carbon content vs. fracture strength
carbon content vs. fracture energy
temperature vs. fracture strength
temperature vs. fracture energy
Fill In The Blank: The lab manual also asks you to use the second method of determining a metal's transition point, which is why you need to include pictures or sketches of the _______ in your lab report.
Charpy testing machine
fracture energy indicator
metal's fracture surface
notch in the metal
The photo shows charpy samples with a ductile and a brittle fracture. What type of failure does a brittle metal exhibit?
Unstable (Cleavage)
Stable (Shear)
Horizontal Buckling
Surface Compression
The Charpy sample in the picture shows primarily what type of fracture
yielding
ductile
brittle
stressing
partial ductile and brittle
