1.1 Materials and their applications Flashcards
What are the two principal categories of material properties?
Mechanical and physical.
What do mechanical properties relate to in materials?
Reaction to external force.
What are physical properties associated with in materials?
Material’s make-up or structure.
What is compressive strength?
Resistance to being crushed.
What does tensile strength refer to?
Resistance to stretching.
Define bending strength.
Resistance to bending forces.
What is shear strength?
Resistance to sliding forces.
What does torsional strength measure?
Resistance to twisting forces.
How is hardness defined?
Resistance to surface wear.
What is toughness in materials?
Ability to absorb impact.
What does plasticity refer to?
Ability to retain shape after deformation.
Define ductility.
Ability to be drawn into wire.
What is malleability?
What is malleability?
What does elasticity describe?
What does elasticity describe?
What does elasticity describe?
Allows electrical flow.
What is tensile strength?
Resistance to stretching.
How is toughness tested?
Impact absorption.
What indicates material hardness in abrasion tests?
Fewest scratches.
How is resistance to indentation measured?
Indent size.
What does malleability testing involve?
Bending without cracking
What does ductility testing assess?
Stretching without breaking.
What is the purpose of corrosion testing?
Assess environmental durability.
How is electrical conductivity tested?
Resistance measurement.
What measures thermal conductivity?
Heat transfer rate.
What does the Izod impact test determine?
Material toughness.
How does the Rockwell hardness test work?
Indentation depth.
What does the Brinell test assess?
Indent diameter.
What is the Vickers pyramid test used for?
Testing hard materials.
What does a bend test evaluate?
Cracking resistance.
How does ultrasonic testing detect flaws?
Reflected sound waves.
What is the principle behind X-ray testing?
Internal imaging.
How is electrical conductivity measured using a four-point probe?
Voltage drop.
What device measures thermal conductivity in materials?
Heat flow meter.
