how to prevent aluminium foil from oxidation
uminium is incredibly reactive and so develops a very (as in VERY) thin oxide layer more or less as soon as it is made or reshaped. What looks like a super-shiny metal on a roll of foil is in fact the oxide with metal showing through.
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Why is welding stainless steel tricky?
The first problem you’ll encounter when welding stainless steel is that this popular alloy retains heat very efficiently. This means that if you use too much heat stainless steel will warp during welding or distort or crack during the cooling process.
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Brittle metal
A material is brittle if, when subjected to stress, it fractures with little elastic deformation and without significant plastic deformation. Brittle materials absorb relatively little energy prior to fracture, even those of high strength. Breaking is often accompanied by a sharp snapping sound.
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What are the properties of steel?
The physical properties of steel include: high strength, low weight, durability, ductility and corrosive resistance. Steel offers great strength, even though it is light in weight. In fact, the ratio of strength to weight for steel is lower than any other building material.
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