Accession Number:

AD0270904

Title:

THE MARTENSITIC TRANSFORMATION IN FE-31 WT-%NI,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA

Personal Author(s):

• Breedis ,J. F.
• Wayman,C. M.

Report Date:

1961-01-01

Pagination or Media Count:

17.0

Abstract:

The crystallography of the martensitic transformation in the Fe-30 Ni alloy was reinvestigated. The scatter in the habit plane as determined from measurements on the mid-rib plane was smaller than reported previously, and the orientation relationship was determined from a martensitic plate having known direction cosines. From agreement with crystallographic theory and from observations of the morphology of the martensite plates, it is suggested that the mid-rib plane represents the starting region of the transformation. Author

Descriptors:

• *AUSTENITE
• *IRON ALLOYS
• *MARTENSITE
• *PHASE STUDIES
• ALLOYS
• CRYSTAL LATTICES
• CRYSTAL STRUCTURE
• MICROSTRUCTURE
• NICKEL ALLOYS
• TRANSITION TEMPERATURE
• X RAY DIFFRACTION

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE