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 : APR 1973

Pagination or Media Count : 11

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