Activation Energy: The energy required to initiate a reaction, such as diffusion.
Allotropy: The possibility of the existence of two or more different crystal structures
for a substance.
Alloy: A metallic substance that is composed of two or more elements
Hardness testing is a fast method providing some idea about material's following
Compared to room temp. properties when metals are heated: STRENGTH
DECREASES DUCTILITY INCREASES
In tensile testing of ductile material, the values of nomi