Hardness Testing (Leaving Cert Engineering): Flashcards
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Practise the cards
13 cards from this deck
What hardness testing measures
What hardness testing measures
Resistance to scratching or permanent deformation
Indenter definition
Indenter definition
Hard object pressed into material surface with force
Larger indentations indicate
Larger indentations indicate
Softer material
Widget in hardness testing
Widget in hardness testing
Small test piece positioned on machine table
Indenter material requirement
Indenter material requirement
Extremely hard materials
Vickers method indenter shape
Vickers method indenter shape
Diamond pyramid
Vickers indentation shape
Vickers indentation shape
Square impression
VHN stands for
VHN stands for
Vickers Hardness Number
What Vickers method measures
What Vickers method measures
Diagonals of square indentation
Brinell method indenter type
Brinell method indenter type
Hardened steel sphere
Brinell indentation shape
Brinell indentation shape
Circular depression
BHN stands for
BHN stands for
Brinell Hardness Number
What Brinell method measures
What Brinell method measures
Diameter of circular indentation