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

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.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
AD0713191

Entities

People

  • E. Pink
  • R. W. Armstrong

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Annealing
  • Boundaries
  • Classification
  • Contracts
  • Dislocations
  • Ductile Brittle Transition
  • Engineering
  • Grain Boundaries
  • Grain Size
  • Materials
  • Metals
  • Molybdenum
  • Recrystallization
  • Security
  • Transition Temperature
  • Transitions
  • United States Government

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.