12 February 2016

Advantages and disadvantages of carburizing

Carburizing is one type of heat treatment process in which iron or steel absorbs carbon while the metal is heated in the presence of carbon-bearing materials like charcoal or carbon monoxide and make the metal harder. Let us have a deep insight into the pros and cons of the carburizing process in this article.  

Advantages of the carburizing process :

  • Carburizing is applied to low carbon steels.
  • Low carbon steel is in contact with a high-carbon in the form of gas, liquid or solid because of carburizing.
  • Carburizing produces a hard steel surface by increasing the carbon content of the surface.
  • The steel cores largely retain their ductility and toughness. 
  • Carburizing process produces case hardened depths of up to 6 mm.
  • In some cases carburizing serves as a remedy for undesired decarburization which has happened earlier in a manufacturing process.
  • The increase in surface hardness results in enhanced wear and fatigue resistance.
  • Good adherence due to diffusion. 

Disadvantages of the carburizing process : 

  • Dimensional deviations due to high-temperature process and hardening treatment. 
  • Expensive machine so cost is high. 
  • The dimension of a workpiece is limited.
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