|
Splitting phenomenon in martensitic transformation of X12CrMoWVNbN10-1-1 steel
X.G.Tao, L.Z.Han, J.F.Gu
Keywords: Abnormal grain growth; Concentration gradient; Splitting phenomenon; Martensitic transformation; X12CrMoWVNbN10-1-1 steel
Abstract: The splitting phenomenon was detected in martensitic transformation of X12CrMoWVNbN10-1-1 steel using high resolution dilatometry under certain conditions. In-situ observation of austenite grain growth was carried out. Direct experimental results indicated that this splitting is not connected with the concentration gradient in the austenite resulting from the dissolution of carbonitrides during heating, but instead may be caused by the occurrence of abnormal grain growth.
|