ENG 1050 Materials

[Twenty11]

Hey guys,
Just wondering if a Single crystal metal such as aluminium is weaker than the polycrystalline version and why?
regards
Twenty11

[Mao]

Hey guys,
Just wondering if a Single crystal metal such as aluminium is weaker than the polycrystalline version and why?
regards
Twenty11

Define 'weaker'?

Single crystal metals are more malleable, but they do not break. In this sense, single crystal metals have very high tensile strength.
Polycrystalline metals are brittle, they can sustain larger mechanical stress without deformation. In this sense, they are stronger than single crystal metals.

[Twenty11]

Thanks mate I understand now

(Side note: Do you drive a commodore with rims with number plate 'Mao'? Seen it around the eng car park )

by weaker i mean easier to deform.

[Mao]

Thanks mate I understand now

(Side note: Do you drive a commodore with rims with number plate 'Mao'? Seen it around the eng car park )

by weaker i mean easier to deform.

That'll be me, haha

[taiga]

Does anyone that has done the subject have any suggestions on what type of questions to practice for the midsem?

cheers