THE RECRYSTALLIZATION KINETICS OF MAGNESIUM CONTAINING SMALL AMOUNTS OF IMPURITY ELEMENTS, GRAIN GROWTH OF DILUTE ALLOYS OF MAGNESIUM AND ELECTRON MICROSCOPY OF THE DUCTILE BRITTLE TRANSITION IN CHROMIUM.

Abstract

Experimental work has been carried out to determine the recrystallization kinetics of magnesium-cadmium and magnesium-zirconium dilute alloys. A theory has been developed to explain the linear variation of per cent recrystallization with log time as observed in these alloys. Measurements of normal grain growth was made in magnesium-zinc and magnesium-manganese alloys and was found to obey the normal grain growth law, D squared = kt. The mechanism for grain growth was found to be a single step process with an activation energy of 18 kilocalories per mole. Preliminary work was accomplished in preparing specimens and building apparatus for low temperature testing of pure chromium tensile specimens. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1969
Accession Number
AD0693238

Entities

People

  • Charles H. Pitt
  • H. S. Shim
  • Theron G. Odekirk
  • William J. Hong

Organizations

  • University of Utah

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Alloys
  • Chromium
  • Ductile Brittle Transition
  • Electron Microscopy
  • Elements
  • Grain Growth
  • Heat Of Activation
  • Kinetics
  • Low Temperature
  • Magnesium
  • Manganese
  • Manganese Alloys
  • Microscopy
  • Recrystallization
  • Transition Temperature
  • Transitions

Fields of Study

  • Materials science

Readers

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

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene