The heat treatment process combines heating and cooling methods. Most importantly, these are applied to change the physical and the chemical properties of a metal or an alloy. Heat treatment is generally used in metallurgical operations, and it is also applicable for other hard materials like glass. The heat treatment procedure includes hot and cold processing operations to extreme temperatures to attain the desired results, such as hardening and softening a material.
Here we’re discussing basic types of heat treatment Australia used to increase the strength of the material.
Hardening
The process of hardening determines metal’s deficiencies especially overall durability. Hardening is heating a metallic alloy to a predefined temperature and then quenching it quickly in oil, water or brine after it reaches the desired properties. The quenching locks the particles, so it doesn’t gain new qualities. The intensity of temperature and quenching parameters are based on the type of steel alloy being possessed.
Annealing
The process of annealing is just the opposite of hardening. Annealing is done to relieve the internal stress of metal and soften it to increase its durability. In this heat treatment method, metals like aluminium, copper, steel, silver or brass are heated to a specific temperature, holding it there and letting it slowly cool for some time at room temperature. The cooling of metal typically increases flexibility and minimizes hardness to make the metal more workable.
Normalization
The Normalization process is basically the same as annealing. The metal is heated up to a temperature of 150-200°F, a bit higher than annealing and held the temperature for better transformation. Later, it gets air-cooled to strengthen the metal.
This heat treatment Australia method is often performed to reduce the impact of another process that has intentionally or unintentionally increased hardness and decreased ductility of the metal. This process makes the material more limber and machinable at the same time it reduces the residual stress of the metal.
Tempering
This method is generally performed over iron-based alloys, particularly steel. In tempering, metals are heated up to a temperature below the critical point to remove excess brittleness while not compromising the metal’s hardness. For better plasticity and less hardness of metals, they are heated in higher temperatures for a long.
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