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NOTE ON ALLOYS

NOTE ON ALLOYS

  • An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal.
  • The properties of any metal can be changed if it is mixed with some other substance.
  • The substance added may be a metal or a non-metal.
  • Alloying is a very good method of improving the properties of a metal according to our need.
  • Iron is never used in its pure state.
  • This is because pure iron is very soft and stretches easily when hot.
  • When mixed with a small amount of carbon (about 0.05 %), it becomes hard and strong.
  • iron is mixed with nickel and chromium, to get stainless steel, which is hard and does not rust.
stainless steel sheets
stainless steel sheets

Preparation of alloy- It is prepared by first melting the primary metal, and then, dissolving the other elements in it in definite proportions. It is then cooled to room temperature.

some articles made up of different alloys
some articles made up of different alloys
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