Densification and microstructural evolution of a high niobium containing TiAl alloy consolidated by spark plasma sintering

2015 ◽  
Vol 64 ◽  
pp. 70-77 ◽  
Author(s):  
Jiawen Wang ◽  
Yan Wang ◽  
Yong Liu ◽  
Jianbo Li ◽  
Longze He ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Microstructural Evolution ◽  
Tial Alloy ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Effect of Nano-Y2O3 Addition on Microstructure and Tensile Properties of High-Nb TiAl Alloy Prepared by Spark Plasma Sintering

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1048
Author(s):  
Yingchao Guo ◽  
Yongfeng Liang ◽  
Junpin Lin ◽  
Fei Yang
Keyword(s):  
Tensile Strength ◽  
Spark Plasma Sintering ◽  
Tial Alloy ◽  
Second Phase ◽  
Fine Grain ◽  
Fine Grain Strengthening ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Y2o3 Addition ◽  
Powder Metallurgy Route

Nano-Y2O3 reinforced Ti-47.7Al-7.1Nb-(V, Cr) alloy was fabricated by a powder metallurgy route using spark plasma sintering (SPS), and the influence of nano-Y2O3 contents on the microstructure and mechanical properties were investigated systematically. The results revealed that the ultimate tensile strength and elongation of the alloy were 570 ± 28 MPa and 1.7 ± 0.6% at 800 °C, 460 ± 23 MPa and 6.1 ± 0.4% at 900 °C with no nano-Y2O3, 662 ± 24 MPa and 5.5 ± 0.5% at 800 °C, and 466 ± 25 MPa and 16.5 ± 0.8% at 900 °C with 0.05 at% nano-Y2O3 addition, respectively. Due to the fine-grain strengthening and the second-phase strengthening, both tensile strength and elongation of the high-Nb TiAl alloy were enhanced with the addition of nano-Y2O3.

Dispersion characteristics, microstructural evolution and sintering behaviour of Al2O3-Ti6Al4V composites fabricated by spark plasma sintering

2019 ◽  
Vol 18 ◽  
pp. 3791-3797
Author(s):  
Okoro Avwerosuoghene Moses ◽  
Cosssa Themba Edmond ◽  
Thaba Thapelo Precious ◽  
Lephuthing Senzeni Sipho ◽  
Oke Samuel Ranti ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Microstructural Evolution ◽  
Dispersion Characteristics ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Behaviour

scholarly journals Development of a TiAl Alloy by Spark Plasma Sintering

JOM ◽  
2017 ◽  
Vol 69 (12) ◽  
pp. 2576-2582 ◽  
Author(s):  
Alain Couret ◽  
Thomas Voisin ◽  
Marc Thomas ◽  
Jean-Philippe Monchoux
Keyword(s):  
Spark Plasma Sintering ◽  
Tial Alloy ◽  
Plasma Sintering ◽  
Spark Plasma

Microstructures and Mechanical Properties of Ti-43Al-5V-4Nb-Y Alloy Consolidated by Spark Plasma Sintering

2016 ◽  
Vol 704 ◽  
pp. 183-189
Author(s):  
Yong Jun Su ◽  
Yi Feng Zheng ◽  
De Liang Zhang ◽  
Fan Tao Kong
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Tial Alloy ◽  
Tensile Tests ◽  
X Ray Diffraction ◽  
X Ray ◽  
Plasma Sintering ◽  
Short Period ◽  
Spark Plasma ◽  
Fully Lamellar

TiAl alloy with a composition of Ti-43Al-5V-4Nb-Y (at.%) was prepared by spark plasma sintering (SPS). The TiAl powders were sintered between 650°C and 1300°C for 5 min under different loads. With the increasing of the temperature, the diffusion of the elements can be observed. Full compaction is achieved in a short period of time and the overall processing duration does not exceed 30 min. A fully lamellar structure was seen in the TiAl alloy after heat treatment. The microstructures of the samples were determined by X-ray diffraction and scanning electron microscopy. Their mechanical properties were evaluated by tensile tests performed at room temperature

Densification and microstructural evolution of bulk Al2O3–Y3Al5O12(YAG) eutectic ceramic fabricated by spark plasma sintering

2019 ◽  
Vol 45 (9) ◽  
pp. 12337-12343
Author(s):  
Di Zhao ◽  
Haijun Su ◽  
Haifang Liu ◽  
Yuan Liu ◽  
Zhonglin Shen ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Microstructural Evolution ◽  
Plasma Sintering ◽  
Spark Plasma
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