TY - JOUR
T1 - A novel and high-strength Ti–Al–V–Fe alloy prepared by spark plasma sintering
AU - Yang, Xin
AU - Zhang, Zhaoyang
AU - Wang, Ben
AU - Li, Yunzhe
AU - Liu, Gang
AU - Wang, Yan
AU - Zhang, Guangxi
AU - Liu, Shifeng
N1 - Publisher Copyright:
© 2021 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.
PY - 2021
Y1 - 2021
N2 - Ti–1Al–8V–5Fe (Ti-185) is a unique low-cost β-Ti alloy, containing lower cost alloying elements, notably Fe, as compared to Ti–10V–2Fe–3Al (Ti-1023) and Ti–5Al–5V–5Mo–3Cr (Ti-5553) while offering high strength. However, with higher Fe content (>5 at.-%), the ‘β-flecks’ are prone to form because strong segregation in traditional casting, which seriously deteriorates the mechanical properties of the alloys. In this work, Spark plasma sintering (SPS) was successfully used to produce Ti-185 components starting from elemental Ti and Al powders, and a V–Fe master alloy powder with different particle size (106, 45, and 23 μm). SPS can be used to produce a very fine grain microstructure with decreasing particle size master alloy powder and non-detrimental Fe segregation, and which result in a significant improvement of the mechanical properties. As the particle size of the FeV80 powder decreases, the compressive strength, yield strength and compressive strain of the alloy gradually increase.
AB - Ti–1Al–8V–5Fe (Ti-185) is a unique low-cost β-Ti alloy, containing lower cost alloying elements, notably Fe, as compared to Ti–10V–2Fe–3Al (Ti-1023) and Ti–5Al–5V–5Mo–3Cr (Ti-5553) while offering high strength. However, with higher Fe content (>5 at.-%), the ‘β-flecks’ are prone to form because strong segregation in traditional casting, which seriously deteriorates the mechanical properties of the alloys. In this work, Spark plasma sintering (SPS) was successfully used to produce Ti-185 components starting from elemental Ti and Al powders, and a V–Fe master alloy powder with different particle size (106, 45, and 23 μm). SPS can be used to produce a very fine grain microstructure with decreasing particle size master alloy powder and non-detrimental Fe segregation, and which result in a significant improvement of the mechanical properties. As the particle size of the FeV80 powder decreases, the compressive strength, yield strength and compressive strain of the alloy gradually increase.
KW - Ti–1Al–8V–5Fe
KW - mechanical properties
KW - microstructure
KW - spark plasma sintering
UR - https://www.scopus.com/pages/publications/85104697798
U2 - 10.1080/00325899.2021.1915609
DO - 10.1080/00325899.2021.1915609
M3 - 文章
AN - SCOPUS:85104697798
SN - 0032-5899
VL - 64
SP - 387
EP - 395
JO - Powder Metallurgy
JF - Powder Metallurgy
IS - 5
ER -