Would you think that the development of civilization was directly influenced by the discovery of certain metals: silver, gold, copper, and iron? If this had not happened, the modern world would have been a Stone Age, where people live in dugouts. Durable metal not only shaped our past but also became the foundation that serves to create the future. Some metals are so ductile that they are actively used in all areas of activity. Others are more durable, so it is difficult to cope with them without special tools. And if you are wondering which metals are the hardest and strongest in the world, we will answer this question, taking into account various estimates of the relative hardness of materials (Mohs scale, Brinell method), as well as such parameters as:
Young’s modulus: takes into account the elasticity of an element in tension, that is, the ability of an object to resist elastic deformation.
Yield Strength: Determines the maximum tensile strength of a material, after which it begins to exhibit plastic behavior.
Tensile Strength: Ultimate mechanical stress, after which the material begins to break.
- Rhenium
This is a very rare and expensive metal, which, although it is found in nature in its pure form, usually comes in a «makeweight» — an impurity to molybdenite. If the Iron Man suit were made of rhenium, it could withstand temperatures of 2000 ° C without sacrificing strength. We will keep silent about what would become of Iron Man himself inside the suit after such a «fire show». Russia is the third country in the world in terms of the natural reserves of rhenium. This metal is used in the petrochemical industry, electronics, and electrical engineering, as well as in aircraft and rocket engines.
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