Development of strength and conductivity in deformation processed copper base alloys

Thesis/Dissertation · Mon Jul 20 04:00:00 EDT 1992

OSTI ID:10168116

Insoo, M

Deformation processed copper based composite alloys have been recently investigated. In these composite alloys, copper, a matrix material, contributes to a high thermal and electrical conductivity, and a second phase material such as Fe, Nb, Cr, Mo, Ta and W acts as a reinforcement of the strength of the composites. Tungsten was chosen as the bcc phase in the first experiment because W has a high melting temperature which is expected to reduce the decrease in high temperature strength resulting from coarsening of fibers. However, brittleness of tungsten may bring crack problems. Because the matrix is ductile but the second phase is hard enough to resist the external forces, cracks may occur at the interfaces between deformed matrix and undeformed second phase. The purpose of the first experiment is to investigate the possibility of deformation of Cu-W compacts.

• Research Organization: Ames Lab., IA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 10168116
• Report Number(s): IS-T--1576; ON: DE92018807
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101
360102
360103
360104
BCC LATTICES
CASTING
COPPER BASE ALLOYS
DEFORMATION
ELECTRIC CONDUCTIVITY
MECHANICAL PROPERTIES
PARTICLE SIZE
PHYSICAL PROPERTIES
PREPARATION AND FABRICATION
PROCESSING
SCANNING ELECTRON MICROSCOPY
STRUCTURE AND PHASE STUDIES
TEMPERATURE EFFECTS
TENSILE PROPERTIES
THERMAL CONDUCTIVITY
TUNGSTEN ALLOYS