Search results
Results from the WOW.Com Content Network
Even in solid metals, the solubility can be extensive. If the structures of the two metals are the same, there can even be complete solid solubility, as in the case of electrum, an alloy of silver and gold. At times, however, two metals will form alloys with different structures than either of the two parents.
A gate valve, made from Inconel. Some alloys, such as electrum—an alloy of silver and gold—occur naturally. Meteorites are sometimes made of naturally occurring alloys of iron and nickel, but are not native to the Earth. One of the first alloys made by humans was bronze, which is a mixture of the metals tin and copper. Bronze was an ...
These alloys are formed through metallic bonding, [1] with the electrostatic attractive force of the conduction electrons working to bind all the positively charged metal ions together into a crystal lattice structure. [2] Almost all metals can form amalgams with mercury, the notable exceptions being iron, platinum, tungsten, and tantalum.
The material properties immediately after casting are much better than those of conventional metals; usually, cast metals have worse properties than forged or wrought ones. The alloys are also malleable at low temperatures (400 °C or 752 °F for the earliest formulation), and can be molded. The low free volume also results in low shrinkage ...
A metallic glass (also known as an amorphous or glassy metal) is a solid metallic material, usually an alloy, with a disordered atomic-scale structure. Most pure and alloyed metals, in their solid state, have atoms arranged in a highly ordered crystalline structure. In contrast these have a non-crystalline glass-like structure.
[2]: 112 Most alloy steels are low-alloy. The simplest steels are iron (Fe) alloyed with (0.1% to 1%) carbon (C) and nothing else (excepting slight impurities); these are called carbon steels. However, alloy steel encompasses steels with additional (metal) alloying elements.
All four can be made by high-temperature (and possibly high-pressure) direct reaction of their component elements. [52] Aluminium alloys well with most other metals (with the exception of most alkali metals and group 13 metals) and over 150 intermetallics with other metals are known.
NaPb 3, NaPb, Na 9 Pb 4, Na 5 Pb 2, and Na 15 Pb 4 are some of the known sodium-lead alloys. Sodium also forms alloys with gold (NaAu 2) and silver (NaAg 2). Group 12 metals (zinc, cadmium and mercury) are known to make alloys with sodium. NaZn 13 and NaCd 2 are alloys of zinc and cadmium.