Abstract
In the present work we study the phase transformation reaction of a Cu-20Zn-7Al (wt.%) alloy by isothermal and nonisothermal in situ X-ray diffraction. An effective activation energy for each phase is obtained for the range between 275 and 395 °C. The experimental data are also adjusted with the JMA equations. Finally, we present the TTT (time – temperature – transformation) diagram corresponding to the precipitation of alpha and gamma for the lower temperatures. Below 340 °C, we found for this alloy that the gamma phase precedes the formation of alpha.
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The authors would like to thank the Materials Characterization Division of Centro Atómico Bariloche CNEA for the XRD facility, and to Ernesto Scerbo for obtaining the XRD profiles. We also wish to thank the Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT), CONICET and Universidad del Comahue of Argentina for the financial support of this work.
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© 2006 Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Extended editorial with anecdotes
- Anelastic relaxation and structure of ternary Fe–Al–Me alloys with Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr
- Kinetic study of the β → α + γ transformation reaction in a CuZnAl alloy
- Calorimetric investigation of the binary Cu–In system
- Thermodynamic properties of liquid Cu–In–Zn alloys
- Comparing the thermodynamic behaviour of Al(l) + ZrO2(4% Y2O3) and Al(l) + Al2O3
- Failure-mode dependence of the strengthening effect in Ti3AlC2/10 vol.% Al2O3 composite
- Investigation of Cu-graphite composites prepared by electroforming
- Neutron diffraction analysis of martensite ageing in high-carbon FeCMnSi steel
- Effect of reinforcement size hybridization on the wear properties of SiCp/Cu Composites
- Temperature dependence of lattice mismatch and γ′ volume fraction of a fourth-generation monocrystalline nickel-based superalloy
- Novel combinatorial microstructures in Ti-6Al-4V alloy achieved by an electric-current-pulse treatment
- The Effect of Ti–B and Sr on the mechanical behaviour of the Zinc–Aluminum-based ZA-12 alloy produced by gravity casting
- Determination of retained austenite in multiphase steels by magnetic force microscopy
- Filtration resistance during pressure filtration tests of liquid aluminium alloys
- Microstructure of a Damascene sabre after annealing
- Effect of tin added to the zinc bath on the formation and the microstructure of hot-dip galvanized coatings
- Personal
- Conferences
- Contents
- Editorial
- Extended editorial with anecdotes
- Basic
- Anelastic relaxation and structure of ternary Fe–Al–Me alloys with Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr
- Kinetic study of the β → α + γ transformation reaction in a CuZnAl alloy
- Calorimetric investigation of the binary Cu–In system
- Thermodynamic properties of liquid Cu–In–Zn alloys
- Comparing the thermodynamic behaviour of Al(l) + ZrO2(4% Y2O3) and Al(l) + Al2O3
- Failure-mode dependence of the strengthening effect in Ti3AlC2/10 vol.% Al2O3 composite
- Investigation of Cu-graphite composites prepared by electroforming
- Neutron diffraction analysis of martensite ageing in high-carbon FeCMnSi steel
- Applied
- Effect of reinforcement size hybridization on the wear properties of SiCp/Cu Composites
- Temperature dependence of lattice mismatch and γ′ volume fraction of a fourth-generation monocrystalline nickel-based superalloy
- Novel combinatorial microstructures in Ti-6Al-4V alloy achieved by an electric-current-pulse treatment
- The Effect of Ti–B and Sr on the mechanical behaviour of the Zinc–Aluminum-based ZA-12 alloy produced by gravity casting
- Determination of retained austenite in multiphase steels by magnetic force microscopy
- Filtration resistance during pressure filtration tests of liquid aluminium alloys
- Microstructure of a Damascene sabre after annealing
- Effect of tin added to the zinc bath on the formation and the microstructure of hot-dip galvanized coatings
- Notifications
- Personal
- Conferences
Artikel in diesem Heft
- Contents
- Extended editorial with anecdotes
- Anelastic relaxation and structure of ternary Fe–Al–Me alloys with Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr
- Kinetic study of the β → α + γ transformation reaction in a CuZnAl alloy
- Calorimetric investigation of the binary Cu–In system
- Thermodynamic properties of liquid Cu–In–Zn alloys
- Comparing the thermodynamic behaviour of Al(l) + ZrO2(4% Y2O3) and Al(l) + Al2O3
- Failure-mode dependence of the strengthening effect in Ti3AlC2/10 vol.% Al2O3 composite
- Investigation of Cu-graphite composites prepared by electroforming
- Neutron diffraction analysis of martensite ageing in high-carbon FeCMnSi steel
- Effect of reinforcement size hybridization on the wear properties of SiCp/Cu Composites
- Temperature dependence of lattice mismatch and γ′ volume fraction of a fourth-generation monocrystalline nickel-based superalloy
- Novel combinatorial microstructures in Ti-6Al-4V alloy achieved by an electric-current-pulse treatment
- The Effect of Ti–B and Sr on the mechanical behaviour of the Zinc–Aluminum-based ZA-12 alloy produced by gravity casting
- Determination of retained austenite in multiphase steels by magnetic force microscopy
- Filtration resistance during pressure filtration tests of liquid aluminium alloys
- Microstructure of a Damascene sabre after annealing
- Effect of tin added to the zinc bath on the formation and the microstructure of hot-dip galvanized coatings
- Personal
- Conferences
- Contents
- Editorial
- Extended editorial with anecdotes
- Basic
- Anelastic relaxation and structure of ternary Fe–Al–Me alloys with Me = Co, Cr, Ge, Mn, Nb, Si, Ta, Ti, Zr
- Kinetic study of the β → α + γ transformation reaction in a CuZnAl alloy
- Calorimetric investigation of the binary Cu–In system
- Thermodynamic properties of liquid Cu–In–Zn alloys
- Comparing the thermodynamic behaviour of Al(l) + ZrO2(4% Y2O3) and Al(l) + Al2O3
- Failure-mode dependence of the strengthening effect in Ti3AlC2/10 vol.% Al2O3 composite
- Investigation of Cu-graphite composites prepared by electroforming
- Neutron diffraction analysis of martensite ageing in high-carbon FeCMnSi steel
- Applied
- Effect of reinforcement size hybridization on the wear properties of SiCp/Cu Composites
- Temperature dependence of lattice mismatch and γ′ volume fraction of a fourth-generation monocrystalline nickel-based superalloy
- Novel combinatorial microstructures in Ti-6Al-4V alloy achieved by an electric-current-pulse treatment
- The Effect of Ti–B and Sr on the mechanical behaviour of the Zinc–Aluminum-based ZA-12 alloy produced by gravity casting
- Determination of retained austenite in multiphase steels by magnetic force microscopy
- Filtration resistance during pressure filtration tests of liquid aluminium alloys
- Microstructure of a Damascene sabre after annealing
- Effect of tin added to the zinc bath on the formation and the microstructure of hot-dip galvanized coatings
- Notifications
- Personal
- Conferences