Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (4): 361-367.

• Research paper • Previous Articles     Next Articles

THE CRITICAL TIME IN TEMPER EMBRITTLEMENT ISOTHERMS OF PHOSPHORUS IN STEELS

T.D.Xu CentralIron & Steel Research Institute, Departmentof Superalloy ,Beijing 100081 ,China   

  • Received:1999-08-25 Revised:1999-08-25 Online:1999-08-25 Published:2009-10-10

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Abstract: Thecriticaltimein non equilibrium segregationisotherm willinduce a criticaltimein rela tivetemperembrittlementisotherm , at which when asteelisheld, a maximum intheextent ofembrittlement willoccur.Thissuggestion hasbeenconfirmedinthepresentpaperforphos phorusnon equilibrium segregation tograin boundariesin somesteels.

Key words: grain boundarysegregation , temperembrittlement

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