The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique
Апстракт
The influence of hot-pressing (HP-ing) parameters on the microstructure, tensile properties and impact toughness of Ti6Al4V alloy produced by the powder metallurgy (PM) technique was evaluated. The experimental results show that variations in the microstructural morphology and residual porosity play an important role in affecting the mechanical properties of this alloy. The lamellar microstructure with a higher density, obtained by HP-ing above the beta-transition temperature (T-beta), was found to exibit a higher tensile strenght and toughness than the globular microstructure produced below T-beta. Although both types of microstructure show a mixed fracture, the ductile mode was more pronounced in the case of the fully lamellar microstructure. By controlling the HP-ing pressure and duration time, the globular microstructure, with lower porosity, improved tensile strength and ductility in combination with a better resistance to crack initation and propagation, can be obtained.
Кључне речи:
powder metallurgy / hot pressing / tensile properties / toughness / microstructural morphology / porosityИзвор:
Journal of the Serbian Chemical Society, 2006, 71, 8-9, 985-992Финансирање / пројекти:
- Синтеза и особине наноструктурних металних, интерметалних и композитних материјала (RS-MESTD-MPN2006-2010-142027)
DOI: 10.2298/JSC0609985B
ISSN: 0352-5139
WoS: 000242464100016
Scopus: 2-s2.0-33751412499
Колекције
Институција/група
VinčaTY - JOUR AU - Božić, Dušan AU - Cvijović, Ivana AU - Vilotijević, Miroljub N. AU - Jovanović, Milan T. PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3124 AB - The influence of hot-pressing (HP-ing) parameters on the microstructure, tensile properties and impact toughness of Ti6Al4V alloy produced by the powder metallurgy (PM) technique was evaluated. The experimental results show that variations in the microstructural morphology and residual porosity play an important role in affecting the mechanical properties of this alloy. The lamellar microstructure with a higher density, obtained by HP-ing above the beta-transition temperature (T-beta), was found to exibit a higher tensile strenght and toughness than the globular microstructure produced below T-beta. Although both types of microstructure show a mixed fracture, the ductile mode was more pronounced in the case of the fully lamellar microstructure. By controlling the HP-ing pressure and duration time, the globular microstructure, with lower porosity, improved tensile strength and ductility in combination with a better resistance to crack initation and propagation, can be obtained. T2 - Journal of the Serbian Chemical Society T1 - The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique VL - 71 IS - 8-9 SP - 985 EP - 992 DO - 10.2298/JSC0609985B ER -
@article{ author = "Božić, Dušan and Cvijović, Ivana and Vilotijević, Miroljub N. and Jovanović, Milan T.", year = "2006", abstract = "The influence of hot-pressing (HP-ing) parameters on the microstructure, tensile properties and impact toughness of Ti6Al4V alloy produced by the powder metallurgy (PM) technique was evaluated. The experimental results show that variations in the microstructural morphology and residual porosity play an important role in affecting the mechanical properties of this alloy. The lamellar microstructure with a higher density, obtained by HP-ing above the beta-transition temperature (T-beta), was found to exibit a higher tensile strenght and toughness than the globular microstructure produced below T-beta. Although both types of microstructure show a mixed fracture, the ductile mode was more pronounced in the case of the fully lamellar microstructure. By controlling the HP-ing pressure and duration time, the globular microstructure, with lower porosity, improved tensile strength and ductility in combination with a better resistance to crack initation and propagation, can be obtained.", journal = "Journal of the Serbian Chemical Society", title = "The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique", volume = "71", number = "8-9", pages = "985-992", doi = "10.2298/JSC0609985B" }
Božić, D., Cvijović, I., Vilotijević, M. N.,& Jovanović, M. T.. (2006). The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique. in Journal of the Serbian Chemical Society, 71(8-9), 985-992. https://doi.org/10.2298/JSC0609985B
Božić D, Cvijović I, Vilotijević MN, Jovanović MT. The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique. in Journal of the Serbian Chemical Society. 2006;71(8-9):985-992. doi:10.2298/JSC0609985B .
Božić, Dušan, Cvijović, Ivana, Vilotijević, Miroljub N., Jovanović, Milan T., "The influence of microstructural characteristics on the mechanical properties of Ti6Al4V alloy produced by the powder metallurgy technique" in Journal of the Serbian Chemical Society, 71, no. 8-9 (2006):985-992, https://doi.org/10.2298/JSC0609985B . .