Tag Archives | Carburising of Steels

Problems of Carburising | Case-Hardening | Steel | Metallurgy

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 [...]

By Jayanti S|2017-10-24T05:51:36+05:30October 24, 2017|Steel|Comments Off

Heat Treatment after Carburising | Steel | Metallurgy

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 [...]

By Jayanti S|2017-10-24T05:51:35+05:30October 24, 2017|Steel|Comments Off