Texture Evolution and Dynamic Recrystallization Behavior of Hybrid-Reinforced Titanium Matrix Composites: Enhanced Strength and Ductility

2020 ◽  
Vol 51 (5) ◽  
pp. 2276-2290 ◽  
Author(s):  
Peikun Qiu ◽  
Yuanfei Han ◽  
Guangfa Huang ◽  
Jianwen Le ◽  
Liming Lei ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Texture Evolution ◽  
Matrix Composites ◽  
Recrystallization Behavior ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Dynamic Recrystallization Behavior ◽  
Strength And Ductility

scholarly journals Review of nano-phase effects in high strength and conductivity copper alloys

2019 ◽  
Vol 8 (1) ◽  
pp. 383-395 ◽  
Author(s):  
Xiaohui Zhang ◽  
Yi Zhang ◽  
Baohong Tian ◽  
Kexing Song ◽  
Ping Liu ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Copper Alloys ◽  
High Strength ◽  
Copper Matrix ◽  
Deformation Mechanisms ◽  
Matrix Composites ◽  
Recrystallization Behavior ◽  
Copper Matrix Composites ◽  
Final Performance ◽  
Dynamic Recrystallization Behavior

Abstract Copper alloys and copper matrix composites have been attracting a lot of attention lately. Their composition design, preparation, and processing directly affect the final performance. In this review, several typical copper alloys, such as Cu-Fe-P, Cu-Ni-Si, and Cu-Cr-Zr are analyzed. The deformation mechanisms, microstructure evolution, and dynamic recrystallization behavior are summarized. In addition, dispersion strengthened copper matrix composites and graphene reinforced copper matrix composites are reviewed.

scholarly journals Deformation and fracture behavior of in-situ Ti composites reinforced with TiB/nano-sized particles

2020 ◽  
Vol 321 ◽  
pp. 08004
Author(s):  
Yuanfei Han ◽  
Xianglong Sun ◽  
Pinwang Liu ◽  
Guangfa Huang ◽  
Lv Xiao ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Dynamic Recrystallization ◽  
Hot Deformation ◽  
Fracture Behavior ◽  
Dominant Role ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Intergranular Cracking ◽  
Titanium Matrix Composites ◽  
Deformation And Fracture

The hot deformation and fracture behavior of TiB/nano-sized particulate reinforced titanium matrix composites were investigated. The effect of reinforcement contents and initial structures on the isothermal deformation and fracture characteristic were investigated through microstructure analysis, tensile tests and crack propagation tests. It was found that the optimal working parameters for Ti composites is determined at 900-950°C/0.01-0.1 s-1, which is associated with the continuous dynamic recrystallization of primary a grains and dynamic globularization of lamellar α. The necklace recrystallization was observed in β phase region, and the instability mechanisms include inhomogeneous deformation and breaking or debonding of TiB whiskers. Additionally, the addition of reinforcements refines α phases, decreasing the lamellar α width. The aspect ratio of TiB is much higher with the increase of reinforcement content. Higher content (2.5 vol. % and 5 vol. %) brings about more broken reinforcements and defects, which result in brittle fracture in Ti composite. Reinforcements and defects are believed to be the key factors to determine the crack propagation. Intergranular cracking is the main cracking way in the region where there are few reinforcements. Defects caused by fractured TiB play a dominant role in diverting intergranular cracking to transgranular cracking. Key words: Hot deformation, dynamic globularization, dynamic recrystallization, Titanium matrix composites

Texture Evolution of Hot-Rolled, Near-α-Based Titanium Matrix Composites

2012 ◽  
Vol 43 (9) ◽  
pp. 3257-3263 ◽  
Author(s):  
Xianglong Guo ◽  
Liqiang Wang ◽  
Minmin Wang ◽  
Jining Qin ◽  
Di Zhang ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites ◽  
Hot Rolled
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