In this article we will discuss about:- 1. Introduction to Carburising of Steels 2. Structure and Properties 3. Mechanism of Carburising of Steels 4. Theory 5. Depth 6. Plasma Carburising 7. Carburising Furnaces. Contents: Introduction to Carburising of Steels Structure and Properties of Carburised Steels Mechanism of Carburising of Steels Theory of Carburising of Steels Depth for Carburisation of Steels [...]
Many problems occurs during carburising of steels. Some of these are: 1. Low Surface Hardness 2. Low Case Depth 3. Non-Uniform Case Depth 4. Soft Spots 5. Sooting 6. Distortion. Problem # 1. Low Surface Hardness: There are two main reasons of low surface hardness of a carburised component- Presence of large amount of retained austenite or decarburisation. There is [...]
Carburised parts are generally heat treated for following reasons: 1. To develop hard and wear resistant surfaces. 2. The long lime and high temperatures during carburising may cause grain coarsening in core and or case. These may be refined to improve their properties like impact strength, etc. 3. If carburising has resulted in cementite network at the surface, it induces [...]