AN INVESTIGATION OF TRANSFORMATION MECHANISM AND FINE STRUCTURE OF (M-A) PHASE IN 12Cr2MoWVTiB STEEL BY TEM

Thin foil of normalized specimen of 12Cr2MoWVTiB steel has been examinedby TEM. The fine structure and crystallographic orientation relationship of the(M-A) phase in carbonless bainite were determined. In the light of the observedstructure features the transformation mechanism of (M-A) phase was also discussed.