Titanium Alloy Sheet, Strip, and Plate, 8Al - 1V - 1Mo, Single Annealed

2021 ◽  
Author(s):  
Keyword(s):  
Titanium Alloy ◽  
Alloy Sheet

scholarly journals Hot Deformation Behavior and Hot Rolling Properties of a Nano-Y2O3 Addition Near-α Titanium Alloy

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 837
Author(s):  
Zhuangzhuang Zheng ◽  
Yuyong Chen ◽  
Fantao Kong ◽  
Xiaopeng Wang ◽  
Yucheng Yu
Keyword(s):  
Activation Energy ◽  
Titanium Alloy ◽  
Hot Rolling ◽  
Deformation Behavior ◽  
Processing Map ◽  
Dynamic Recovery ◽  
Alloy Sheet ◽  
Hot Deformation Behavior ◽  
Hot Processing Map ◽  
Y2o3 Addition

The hot deformation behavior and hot rolling based on the hot processing map of a nano-Y2O3 addition near-α titanium alloy were investigated. The isothermal compression tests were conducted at various deformation temperatures (950⁠–1070 °C) and strain rates (0.001–1 s−1), up to a true strain of 1.2. The flow stress was strongly dependent on deformation temperature and strain rate, decreasing with increased temperature and decreased strain rate. The average activation energy was 657.8 kJ/mol and 405.9 kJ/mol in (α + β) and β region, respectively. The high activation energy and peak stress were contributed to the Y2O3 particles and refractory elements comparing with other alloys and composites. The deformation mechanisms in the (α + β) region were dynamic recovery and spheroidization of α phase, while the β phase field was mainly controlled by the dynamic recrystallization and dynamic recovery of β grains. Moreover, the constitutive equation based on Norton–Hoff equation and hot processing map were also obtained. Through the optimal processing window determined by the hot processing map at true strains of 0.2, 0.4 and 0.6, the alloy sheet with multi-pass hot rolling (1050 °C/0.03–1 s−1) was received directly from the as-cast alloy. The ultimate tensile strength and yield strength of the alloy sheet were 1168 MPa and 1091 MPa at room temperature, and 642 MPa and 535 MPa at 650 °C, respectively, which performs some advantages in current research.

Effect of Gas-Saturated Layers on Titanium Alloy Sheet Mechanical Properties

2016 ◽  
Vol 58 (5-6) ◽  
pp. 340-345
Author(s):  
A. B. Kolomenskii ◽  
S. V. Shakhov ◽  
B. A. Kolomenskii
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Alloy Sheet

Vibration Fatigue Test Based on Fiber Bragg Grating Sensors and HHT

2013 ◽  
Vol 328 ◽  
pp. 193-197
Author(s):  
Si Jin Xin ◽  
Zhen Tong
Keyword(s):  
Titanium Alloy ◽  
Fiber Bragg Grating ◽  
Fatigue Test ◽  
Alloy Sheet ◽  
Bragg Grating ◽  
Metal Fatigue ◽  
Hilbert Huang Transform ◽  
Time Frequency ◽  
Vibration Fatigue ◽  
Fbg Sensors

The metal fatigue is an important factor to cause an accident in machine operation, so metal fatigue test is a significant procedure in manufacturing. Fiber Bragg Grating (FBG), as an innovative sensor, has been applied to the measurement of various rotating machines. In this paper, the time-frequency analysis is used to detect the fatigue feature of a titanium alloy measured by FBG sensors. Furthermore, the Hilbert-Huang transform (HHT) is more effective to observe the fatigue limit of the titanium alloy sheet, compared to the Wavelet transform (WT).

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