Advantages Of Tensile Test

Objectives:

1- To comprehend the significance of hardness test in engineering.

2- To figure out how to utilize Brinell, Rockwell and Vickers hardness testers to experiment different material.

3- The results of these tests will be connected to the tensile tests.

Introduction:

Hardness is for the most part considered as protection from infiltration. If the materials become harder it will cause much more protection from infiltration. Hardness is straightforwardly correlated with the mechanical properties of the material. Components affecting hardness incorporate microstructure, grain measure, strain solidifying, and so on. subsequently determinations regularly require the consequences of hardness tests as opposed to tensile tests. A few

You need to repeat this test ten times in every time you should change the metal place.

4- For the Vicker test put test put the metal at the surface of the device and zoom in until you see the surface of the metal clean then indent the metal. After that use the microscope attached to the device to see the indented area and measure its hardness. You need to repeat this test two times.

5-Record your result in your data Analysis paper.

Discussion:

Advantages of Brinell test:

1- Brinell hardness test is less impacted by surface scratches and harshness than different hardness tests.

2- Nearly all metals can be tested in Brinell hardness test.

Disadvantages of Brinell test:

1- the test is slow, because of the time the device need to measure the diameter and to determine the hardness.

2-The test cause a great damage to the surface of the metal.

Advantages of Rockwell test:

1- the test doesn't need optical reading to find the value of hardness.

2-It is a very fast test.

Disadvantages of Rockwell

At the Brinell test we found the average value of hardness of Steel to be equal to 100.2 then we found the average value of hardness of Brass to be equal to 90.83 at the end we found the average value of hardness of Aluminum alloy to be equal to 117.3. However, at the Rockwell test we found the average value of hardness of Steel, Brass and Aluminum alloy to be equal to 130, 100 and 120 respectively. Also at the Vicker test we found two hardness result for every metal because we used to deferent load 500g and 1000g so the average value of hardness of Steel, Brass and Aluminum alloy at 500g load equal to 249.13, 342.83 and 241.16 respectively while the average value of hardness of Steel, Brass and Aluminum alloy at 1000g load equal to 219.05, 244.95 and