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An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character. An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Intermetallic compounds are alloys with a defined stoichiometry and crystal structure. Zintl phases are also sometimes considered alloys depending on bond types (see also: Van Arkel-Ketelaar triangle for information on classifying bonding in binary compounds).
Alloys are used in a wide variety of applications. In some cases, a combination of metals may reduce the overall cost of the material while preserving important properties. In other cases, the combination of metals imparts synergistic properties to the constituent metal elements such as corrosion resistance or mechanical strength. Examples of alloys are steel, solder, brass, pewter, duralumin, phosphor bronze and amalgams.
The alloy constituents are usually measured by mass. Alloys are usually classified as substitutional or interstitial alloys, depending on the atomic arrangement that forms the alloy. They can be further classified as homogeneous (consisting of a single phase), or heterogeneous (consisting of two or more phases) or intermetallic.

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  1. DLS

    Bullet alloy question

    Hey all, I came into a supply of pure antimony and decided to alloy it with some pure lead. I wanted to cast it into 50/50 ratio ingots, to later use to harden wheel weights when I want to cast up rifle bullets. The challenge is that antimony melts at 1167 degrees, compared to pure lead's 620...
  2. gun.deals

    30mm Bubble Level SODIAL Alloy For 30mm Ring Mount Holder - $4.15 shipped

    30mm Bubble Level SODIAL Alloy For 30mm Ring Mount Holder - $4.15 shipped
  3. ORgunaddict

    Alloy Hi Power?

    I have a 1980 (PM serial number) Browning Hi Power that looks and is marked like any other Belgium Hi Power from that year except for the rack numbers on the barrel, slide, frame, and magazine. The unique thing is that the frame is alloy, not steel, and is noticeably lighter than the standard...
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