Introduction

Question 1

Outline reasons for the mechanical testing of metals to the point of destruction

Answer 1

Can give specific data to determine the degree of properties such as hardness, toughness, ductility, strength, etc.
Can determine the suitability of materials before they are used in a product
Method of quality control
Determines the success of heat treatments (hardening, Tempering etc.) on products.

Question 2

What are the advantages of mechanical testing?

Answer 2

Values for properties such as strength, ductility, hardness, toughness, elasticity, fatigue, creep, etc. can be ascertained;
Standardisation of components can be achieved;
Quality control is maintained;
The success of heat treatments can be measured.

Question 3

Why are mechanical tests carried out?

Answer 3

Mechanical tests are carried out on materials to assess how they might perform when they are put into use.