What are the useful alloys?
The alloy is a metal fabric that is made of a mixture of multiple metals or sometimes metal with another element such as carbon. Alloys have been about nine millennia, but like most other domains in science and technology, most of the past few decades, most of the progress in alloy technology have emerged. In the alloy, the elements of the ingredients do not have to combine into larger molecules through chemical reactions, but are only mixed together. If there are different ratios between two or more metals, the alloys produced have slightly different properties.
The first metal to be extracted from ore was copper. Shortly afterwards, it was combined with a tin to create a stronger bronze that dominated human technology for thousands of years. This period is now called the Bronze Age.
other metals mixed with copper to form variations of bronze were manganese, aluminum, silicon and phosphorus. For many years with bronze, coexistence has been tinger iron, which quickly breaks down into rust. Finally, historical forces caused iron toIt paid bronze in human instruments, announced around 1000 BCE in the Iron Age, although this date varies depending on the consideration of civilization and the region.
Steel is another of the well -known alloys. The steel is combined with small (~ 2%) by the amount of carbon, which changes all the differences in terms of strength and resistance to oxidation. Although there is evidence that steel has been returning for thousands of years, it has not been produced in bulk until 1855. The key to the steel is the way the carbon disrupts the otherwise regular arrangement of crystals in iron, so the crystal layers are susceptible to shifting around another.
BRAZAZ, decorative metal used to produce many musical instruments, is the name of the collection of copper alloy/zinc alloys. Cymbals used in the drum alloy of copper and tin, similar to bronze. Gold and silver used in jewelry is not pure gold or silver, but they are usually alloys containing a small percentage of copper or othermetal. The solder used in electronics is made of lead and tin. The iron extraction process of ore leads to alloys that contain different amounts of carbon, including warm iron, iron and cast iron. Stainless steel, which is used in the construction of skyscrapers, cutlery and other objects, contains chrome, so it is highly resistant to oxidation.
When the alloys are mixed, different temperatures are the result of different properties - at higher temperatures, the metals mix more finely, while at lower temperatures they are more heterogeneous. Alloys usually do not hide at the same time when they are exposed to heat, but rather form a soup full of metal pieces that have a higher melting point.