Roles of reinforcements in twin nucleation and nano-α precipitation in the hybrid TiB/TiC-reinforced titanium matrix composites during high-temperature fatigue

2021 ◽  
Vol 196 ◽  
pp. 113758
Author(s):  
Xiaoyan Wang ◽  
Shaopeng Li ◽  
Yuanfei Han ◽  
Guangfa Huang ◽  
Jianwei Mao ◽  
...  
Keyword(s):  
High Temperature ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
High Temperature Fatigue ◽  
Twin Nucleation

Ambient-Temperature and High-Temperature Tensile Properties of Investment Casted Titanium Matrix Composites with B4C Additions

2016 ◽  
Vol 849 ◽  
pp. 443-451
Author(s):  
Ji Heng Wang ◽  
Guang Fa Huang ◽  
Jiu Xiao Li ◽  
Jian Wei Mao ◽  
Xiang Long Guo ◽  
...  
Keyword(s):  
High Temperature ◽  
Ambient Temperature ◽  
Second Phase ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Strength Enhancement ◽  
Solution Strengthening ◽  
High Temperature Tensile ◽  
High Temperature Tensile Properties

Titanium matrix composites (TMCs) were prepared by investment casting in a consumable arc skull casting furnace. The effects of B4C additions on ambient-temperature and high-temperature tensile properties of TMCs were investigated. It has been found that with the addition of B4C, the microstructure of TMCs was refined and the strength improved. The strength enhancement of the TMCs is ascribed to the combined effects of the second-phase strengthening, grain refinement strengthening and the solution strengthening. The grain refinement and solution strengthening effects play a main role in the yield strength enhancement of TMCs at ambient temperature, and the second-phase strengthening of TiB whiskers and TiC particles plays a more important role at high temperature.

High-Temperature Response of TiC Particulate Reinforced Titanium Matrix Composite

2011 ◽  
Vol 87 ◽  
pp. 196-199
Author(s):  
Wei Dong Song ◽  
Jian Guo Ning ◽  
Xiao Nan Mao
Keyword(s):  
High Temperature ◽  
Temperature Response ◽  
Strain Rates ◽  
Stress Model ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composite ◽  
Titanium Matrix Composites ◽  
Particulate Reinforced ◽  
Flow Stress Model

The high-temperature mechanical behavior of TiC particulate-reinforced titanium matrix composites was investigated at elevated strain rates. The effects of the temperature and strain rate on the mechanical properties of the composites were analyzed. According to Arrhenius flow stress model, a dynamic-high-temperature constitutive relation of TiC particulate-reinforced titanium matrix composites was established.

High-temperature tensile properties of in situ-synthesized titanium matrix composites with strong dependence on strain rates

2008 ◽  
Vol 23 (11) ◽  
pp. 3066-3074 ◽  
Author(s):  
Lv Xiao ◽  
Weijie Lu ◽  
Jining Qin ◽  
Di Zhang ◽  
Minmin Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Strain Rate ◽  
Tensile Properties ◽  
Strong Dependence ◽  
Strain Rates ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
The Matrix ◽  
Different Temperatures

High-temperature titanium matrix composites reinforced with hybrid reinforcements are synthesized by common casting and hot working technologies. Tensile properties are tested at different temperatures and strain rates. Ultimate strengths of the composites are significantly enhanced under all conditions and decrease when the strain rate is lower. Equicohesive temperature of the matrix is around 873 K at the strain rate 10−3s−1 and well below 873 K at 10−5s−1. At higher temperature or lower strain rate, interfacial debonding is more drastic and reduces the strengths of composites. The materials are embrittled under creep-rupture conditions. Strict reinforcement morphology is required for more complex service conditions at high temperatures in metal matrix composites.

Thermal stability of in situ synthesized high temperature titanium matrix composites

2009 ◽  
Vol 467 (1-2) ◽  
pp. 135-141 ◽  
Author(s):  
Lv Xiao ◽  
Wei Jie Lu ◽  
Yun Gang Li ◽  
Ji Ning Qin ◽  
Di Zhang
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Thermal Stability Of
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