The Pitsch-Petch orientation relationship in ferrous pearlite at small undercooling

Journal Article · Mon Nov 01 00:00:00 EST 1999 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-999-0114-9· OSTI ID:20001720

Mangan, M A; Shiflet, G J

The factors behind the occurrence of the Pitsch-Petch pearlitic orientation relationship (OR) in ferrous systems are investigated using a combination of crystallographic information obtained through electron-backscatter diffraction (EBSD) and knowledge of the three-dimensional (3-D) morphology of pearlite from serial sectioning. Both hypereutectoid and hypoeutectoid ferrous systems of various compositions providing a variety of morphologies are examined to consider the relationship between pearlite nucleation sites and ferrite-cementite interlamellar ORs. It is shown that the Pitsch-Petch OR occurs when a colony is cementite nucleated and this conclusion is valid for both sides of the eutectoid composition.

• Research Organization: Univ. of Virginia, Charlottesville, VA (US)
• OSTI ID: 20001720
• Journal Information: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Vol. 30, Issue 11; Other Information: PBD: Nov 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PHASE STUDIES
IRON ALLOYS
PEARLITE
ORIENTATION
NUCLEATION
FERRITE
CEMENTITE
MORPHOLOGY