Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti
Abstract
Light and scanning electron microscopy (SEM), X-ray diffraction analysis, hardness and uniaxial tensile tests have been applied to study the mechanism and kinetics of aging of the Cu-5 wt.% Ni-2.5 wt.% Ti alloy under the influence of static and dynamic conditions. Hardening of alloy during aging is a consequence of precipitation of (Ni, Cu)(3)Ti secondary particles with the hcp crystal structure, i.e., the same as the eta phase (Ni3Ti). During static (SSA) and dynamic strain aging (DSA), the strength of the alloy is increased compared to quench aging (QA). This effect is most pronounced during the dynamic process. The total concentration of vacancies participating in the process of DSA is increased compared to the vacancy concentration during SSA and QA. This may be explained by the fact that vacancies are not annihilated at dislocations, but their concentration is preserved through the vacancy - precipitate reaction.
Keywords:
hardening / vacancy concentration / static and dynamic strain agingSource:
Zeitschrift fur Metallkunde, 2005, 96, 1, 78-82
DOI: 10.3139/146.018075
ISSN: 0044-3093
WoS: 000226978000010
Scopus: 2-s2.0-13444263559
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Institution/Community
VinčaTY - JOUR AU - Cancarević, Marija AU - Jovanović, Milan T. AU - Romhanji, E AU - Zec, Slavica PY - 2005 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2854 AB - Light and scanning electron microscopy (SEM), X-ray diffraction analysis, hardness and uniaxial tensile tests have been applied to study the mechanism and kinetics of aging of the Cu-5 wt.% Ni-2.5 wt.% Ti alloy under the influence of static and dynamic conditions. Hardening of alloy during aging is a consequence of precipitation of (Ni, Cu)(3)Ti secondary particles with the hcp crystal structure, i.e., the same as the eta phase (Ni3Ti). During static (SSA) and dynamic strain aging (DSA), the strength of the alloy is increased compared to quench aging (QA). This effect is most pronounced during the dynamic process. The total concentration of vacancies participating in the process of DSA is increased compared to the vacancy concentration during SSA and QA. This may be explained by the fact that vacancies are not annihilated at dislocations, but their concentration is preserved through the vacancy - precipitate reaction. T2 - Zeitschrift fur Metallkunde T1 - Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti VL - 96 IS - 1 SP - 78 EP - 82 DO - 10.3139/146.018075 ER -
@article{ author = "Cancarević, Marija and Jovanović, Milan T. and Romhanji, E and Zec, Slavica", year = "2005", abstract = "Light and scanning electron microscopy (SEM), X-ray diffraction analysis, hardness and uniaxial tensile tests have been applied to study the mechanism and kinetics of aging of the Cu-5 wt.% Ni-2.5 wt.% Ti alloy under the influence of static and dynamic conditions. Hardening of alloy during aging is a consequence of precipitation of (Ni, Cu)(3)Ti secondary particles with the hcp crystal structure, i.e., the same as the eta phase (Ni3Ti). During static (SSA) and dynamic strain aging (DSA), the strength of the alloy is increased compared to quench aging (QA). This effect is most pronounced during the dynamic process. The total concentration of vacancies participating in the process of DSA is increased compared to the vacancy concentration during SSA and QA. This may be explained by the fact that vacancies are not annihilated at dislocations, but their concentration is preserved through the vacancy - precipitate reaction.", journal = "Zeitschrift fur Metallkunde", title = "Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti", volume = "96", number = "1", pages = "78-82", doi = "10.3139/146.018075" }
Cancarević, M., Jovanović, M. T., Romhanji, E.,& Zec, S.. (2005). Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti. in Zeitschrift fur Metallkunde, 96(1), 78-82. https://doi.org/10.3139/146.018075
Cancarević M, Jovanović MT, Romhanji E, Zec S. Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti. in Zeitschrift fur Metallkunde. 2005;96(1):78-82. doi:10.3139/146.018075 .
Cancarević, Marija, Jovanović, Milan T., Romhanji, E, Zec, Slavica, "Mechanism and kinetics of aging of high-strength Cu-5 wt.% Ni-2.5 wt.% Ti" in Zeitschrift fur Metallkunde, 96, no. 1 (2005):78-82, https://doi.org/10.3139/146.018075 . .