Accession Number:

AD0679366

Title:

THE USE OF FAST ELECTRONS IN METALLOGRAPHIC INVESTIGATIONS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• Pronman,I. M.

Report Date:

1968-03-28

Pagination or Media Count:

11.0

Abstract:

Ionization and mixing of atoms during electron bombardment may affect phase transformations in alloys containing phases with intermediate properties, ionic bonds, or metastable bonds. It is shown that the joint radiative-thermal effect, including the heating during irradiation, leads to a phase transformation in white iron. The disintegrating cementite is replaced by ferrite with spheroidal graphite. It is assumed that, in the processes being studied the function of the nonlocal warmup under an electron beam is the same as that of local bursts of heat during neutron irradiation, and that this function is reduced to acceleration of the diffusion processes.

Descriptors:

• (*IRON ALLOYS
• PHASE STUDIES)
• STEEL
• TRANSFORMATIONS
• FERRITES
• DAMAGE
• RADIATION EFFECTS
• NUCLEAR INDUSTRIAL APPLICATIONS
• NUCLEAR RADIATION
• GRAPHITED MATERIALS
• HEAT TREATMENT
• METALLOGRAPHY
• NEUTRON REACTIONS
• NONDESTRUCTIVE TESTING
• USSR

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE