Interdiffusion in the body cubic centered. beta. -phase of titanium-hafnium alloys

Journal Article · Tue Sep 01 00:00:00 EDT 1987 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(87)90077-0· OSTI ID:5423105

Le Gall, G; Ansel, D; Debuigne, J

Interdiffusion has been studied between 1000 and 2000/sup 0/C. The concentration dependence of the interdiffusion coefficients is small. With temperature, they show an anomalous behaviour characteristic of diffusion in b.c.c. metals and alloys. The high temperature activation energy (175 kJ/mol) is greater than the low temperature one near the BETA ..-->.. ..cap alpha.. transformation (120 kJ/mol). Diffusion coefficients at infinite dilution and the influence of zirconium impurities are specified. No Kirkendall effect was seen in these alloys.

• Research Organization: Laboratoire de Metallurgie et Physico-Chimie des Materiaux, Institut National des Sciences Appliquees, 20 avenue des Buttes de Coesmes, 35043 Rennes Cedex
• OSTI ID: 5423105
• Journal Information: Acta Metall.; (United States), Vol. 35:9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HAFNIUM ALLOYS
DIFFUSION
TITANIUM ALLOYS
BCC LATTICES
BINARY ALLOY SYSTEMS
CRYSTAL-PHASE TRANSFORMATIONS
CUBIC LATTICES
IMPURITIES
STRUCTURAL CHEMICAL ANALYSIS
THERMAL DIFFUSION
VERY HIGH TEMPERATURE
ZIRCONIUM
ALLOY SYSTEMS
ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELEMENTS
METALS
PHASE TRANSFORMATIONS
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies