Title page include ( name and course details)
Task A (Template):
- What is the purpose of a tensile test
. Why is it done?
- Details of the experimental procedure
. How the measurements were taken
. Explain the equipment setup ( by steps )
. How the experiment went ( diagram as a result)
. The resultant measurements after the procedure
- A brief outline of the theory
. How and why the equations are used (hook’s law)
- The stress vs strain graph , drawn using excel
- The major results as the table shown from the above graph
- Short discussion of the results (based on the results obtained)
. Why did we get these results
- Suitable short conclusion
. Why is this test useful
. What was obtained from these results
- Answers Q 1-5.
- References
Task B (Template):
- Q1) Impact toughness calculations
. Details are shown in the picture
. PE = mgh
- Q2) test result on high carbon steel
. A) make into excel graph J vs C ( C in x-axis)
. B) estimate (DBTT) for this steel ( +,- 5C) look at the graph of the previous page
. C) determine impact toughness if a standard 1 cm2 ( change to mm2) was used at its (DBTT +,- 5C)
Task C (Template):
- Q1) Brinell hardness test ( 10 mm indented, load 3000kg, 3.2 mm impression measured on the steel)
. Calculate the (HB) value obtained from this test ( show all work)
. HB = 2F/ (pie)D [ D – (sq root ( D^2 – d^2)) (ask how to use this equation)
- Q2) Vickers hardness test ( load 10 KG, A or B = 0.51 mm measured on Brass)
. Calculate HV
- Q3) already answered copy the table
- Q4) briefly describe with 50 words difference between Rockwell and Vickers hardness test
Task D (Template):
Q1) write suitable steels (in terms of C content) for the following applications (write each carbon name , percentage + why is it best ( ductile, tough, wear resistance etc..)
- A hammer (Medium carbon steel, 0.7% – 0.8%C).
- A surgeon’s scalpel ( Stainless steel, low carbon + Chromium + Nickel) for Corrosion resistance with blood.
- Office staples (Low carbon steel, 0.1%-0.2).
Q2) from the lab.
- Describe the phase of each steel according to the carbon content at certain temperature such as shown in the picture.(Delta iron, Austenite, Ferrite, Pearlite and cementite)
- Draw microscope structure from lab and write the steel’s type (low, medium, high C content).p(5)
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