Selecting Materials
Contents
Front cover
Contents page
Introduction
Visual Inspection
Hounsfeild Tensometer
Torsion Tensile Tester
Vickers Hardness Tester.
Summery
introduction
This project will go into depth of the usage of material selection. After being paired with a fellow student we were given the task of testing 0.1% Carbon Steel, 0.4% heat treated steel along with a unknown specimen. To test these materials I will be using 4 types of methods
Visual Inspection
Hounsfeild Tensometer
Torsion Tensile Tester
Vickers Hardness Tester.
Visual test
While looking at the specimens the 0.4% heat treated steel is the darkest this is because of the heat treatment, the other specimens are shinier so this shows the material has been worked on while cold but is difficult to determine the difference between them.
From looking at the differences in the specimens the unknown specimen seems to be closer to the 0.1% steel.
Tensile strength test
The machine that is most commonly used to test the tensile strength of a material is the Hounsfeild Tensometer, this method has been used for many years to test all sorts of materials and with more technology the Hounsfeild Tensometer has become more accurate with digital graphs being made, the design of the machine has more or less stayed the same with a frame that has a clamp on each side for the material to be secured to and most machines there is a type of hydraulic to push the two sides away from each other, on the older models of this machine DTI gauges would need to be set up to get a reading of how much a material has stretched but the machines today has everything all digitally connected and the results usually are on a computer, over the years the Hounsfeild Tensometer has been used to test bolts for bridges, supports for buildings, parts for planes ect…
To test a material in the Hounsfeild Tensometer you must secure the material into the machine and make sure no force has yet been
Front cover
Contents page
Introduction
Visual Inspection
Hounsfeild Tensometer
Torsion Tensile Tester
Vickers Hardness Tester.
Summery
introduction
This project will go into depth of the usage of material selection. After being paired with a fellow student we were given the task of testing 0.1% Carbon Steel, 0.4% heat treated steel along with a unknown specimen. To test these materials I will be using 4 types of methods
Visual Inspection
Hounsfeild Tensometer
Torsion Tensile Tester
Vickers Hardness Tester.
Visual test
While looking at the specimens the 0.4% heat treated steel is the darkest this is because of the heat treatment, the other specimens are shinier so this shows the material has been worked on while cold but is difficult to determine the difference between them.
From looking at the differences in the specimens the unknown specimen seems to be closer to the 0.1% steel.
Tensile strength test
The machine that is most commonly used to test the tensile strength of a material is the Hounsfeild Tensometer, this method has been used for many years to test all sorts of materials and with more technology the Hounsfeild Tensometer has become more accurate with digital graphs being made, the design of the machine has more or less stayed the same with a frame that has a clamp on each side for the material to be secured to and most machines there is a type of hydraulic to push the two sides away from each other, on the older models of this machine DTI gauges would need to be set up to get a reading of how much a material has stretched but the machines today has everything all digitally connected and the results usually are on a computer, over the years the Hounsfeild Tensometer has been used to test bolts for bridges, supports for buildings, parts for planes ect…
To test a material in the Hounsfeild Tensometer you must secure the material into the machine and make sure no force has yet been