According to the non-equilibrium grain-boundary segregation (NGS) kinetics curve of phosphorus, a series of Charpy impact tests was performed in an industrial steel 12CrlMoV, at solution temperature 1050°C, with isothermal holding temperature 540°C, on specimens of different holding time (at the segregation process, the critical time, and the desegregation process respectively). The DBTT values were measured and a temper embrittlement kinetics curve was given. The reverse temper embrittlement NGS mechanism for steel 12CrlMoV was proposed.
|Number of pages||6|
|Journal||Key Engineering Materials|
|Publication status||Published - 2005|
- Grain boundaries
- Temper embrittlement