Things You Need to Know About Metal Treatment
Any time there is the mention of steel modification, one would need to know the difference between hardenability, and hardness. Hardenability tends to focus more on the level at which a given type of metal can harden. When hardening steel, for example, it can only harden as much as the carbon content in it can sustain. It is also essential to remember that more carbon content in a metal tends to lead to a harder metal.
You would also need to remember that the hardenability characteristics tend to highly influence the resultant harness of a metal. Metal hardening tends to be geared towards increasing toughness as well as ductility. Tempering, on the other hand, tends to call for heating a metal that has already been heated and then holding the metal in question on some specific temperatures before cooling it. One would also need to know the benefits of preheating a metal to reduce brittleness created by the first heating as well as allowing the carbon content to precipitate into carbide particles.
One would also need to know that strengthening of the metal may also call for solid solution hardening, transformation hardening, cold working, among other processes. Precipitation hardening tends to be perfect when it comes to the development of high strength steel and also tends to be used in aluminum alloy. On the other hand, cold working of a metal tends to deform it and stress its crystal structures making the metal in question to become harder. However, some processes tend to make the metal being worked on hard and brittle calling for more tempering to make it possible to work on the metal in question without splitting or cracking it.
Solid solution tends to focus on decreasing ductility and at the same time increasing strength of a metal. In the same line, transformation hardening focus on meeting the application requirements of a metal though adjusting the strength and the ductility of a metal. The grain structure of the metal in question also tends to change greatly through the heating process. The concurrent heating and cooling processes tends to focus on changing the metal properties adding value, applicability and durability of the metal in question.
Metal hardening also calls for a situation where the core metal is soft and ductile core with a wear resistant outer cover meant to reduce instances of wear. One would need to know that hardening of the outer layer of the metal tends to involve sinking of the metal up to a given depth. The intention of hot isostatic pressing tends to focus on removing any metal porosity improving its mechanical properties through compressing out any gas that may be trapped in the metal in question. In a case where chrome, titanium and stainless steel needs to be improved, HIP may be used.