Accession Number:

AD0713191

Title:

TOTAL MATERIAL VARIABLES INFLUENCING A DUCTILE-BRITTLE TRANSITION TEMPERATURE FOR MOLYBDENUM

Descriptive Note:

Technical rept.

Corporate Author:

MARYLAND UNIV COLLEGE PARK ENGINEERING MATERIALS GROUP

Personal Author(s):

Report Date:

1970-09-01

Pagination or Media Count:

23.0

Abstract:

The ductile-brittle transition temperature for a coarse grained re- crystallized molybdenum material was found to be lower than for the original fine grained metal from which it was produced. The coarse grain size resulted from a critical straining and subsequent annealing treatment at a low recrystallization temperature. It is concluded from an analysis of various strength parameters which are either measured or estimated for this material that an improved grain boundary strength and a considerable influence of the dislocation substructure are responsible for the less brittle behavior of the coarse grained molybdenum.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE