Accession Number:

AD0760022

Title:

Analysis of Thermally-Activated Flow in Iron, Molybdenum and Niobium.

Descriptive Note:

Technical rept.,

Corporate Author:

MARYLAND UNIV COLLEGE PARK ENGINEERING MATERIALS GROUP

Personal Author(s):

• Armstrong,Ronald W.
• Campbell,J. Denis

Report Date:

1973-04-01

Pagination or Media Count:

11.0

Abstract:

The temperature and shear strain rate dependences of the flow stresses measured for single crystals or polycrystals of alpha-iron, molybdenum, and niobium are compared on the basis of the thermal activation-strain rate analysis TASRA. Of particular concern is the TASRA parameter, the activation volume, which is shown to follow a reciprocal dependence on the thermal component of shear stress, with fair accuracy. Author Modified Abstract

Descriptors:

• (*IRON
• STRESSES)
• (*MOLYBDENUM
• STRESSES)
• (*NIOBIUM
• STRESSES)
• THERMAL ANALYSIS
• STRAIN(MECHANICS)
• SINGLE CRYSTALS

Subject Categories:

• Metallurgy and Metallography
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE