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Science Materials Science & Engineering

Materials testing

materials-testing

There are many tests that can be done on materials to determine their properties or qualities. These tests can be either destructive or non-destructive.
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Introduction

Materials testing is a respected and established technique that is used to ascertain both the physical and mechanical properties of raw materials and components.
tensile-testing

Tensile testing

Firstly, we will look at the most common testing method – tensile testing. In the tensile test, a test piece is extended, usually to fracture, with a gradually increasing uniaxial tensile load, to determine the resistance of the material to the force.
impact-testing

Impact testing

The standard test for measuring impact energy is the Charpy test. This gives an indication of the characteristics of the material during fracture.
fatique-testin

Fatigue testing

Many applications exist where a material is subjected to a repeated cyclic stress. These materials are found to fail after a large number of applications of the stress even though the cyclic stress that is applied is below their yield strength.
hardness-testing

Hardness testing

There are two principal methods of testing the hardness of a material – scratch testing and indentation testing.