Effect of reaction temperature on the microstructures and mechanical properties of high-intensity ultrasonic assisted in-situ Al3Ti/2024 Al composites

Qin, Jin; Chen, Gang; Ji, Xinghua; Song, Xiaoguo; Hu, Nan; Han, Fei; Du, Zhiming

doi:10.1016/j.jallcom.2016.01.121

Cited by 38 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another reason for the enhancement of strength is mainly attributed to the dispersion strengthening effect of fine TiB 2 and L1 2 -Al 3 Ti particles, which act as strong impenetrable barriers to block the motions of dislocations under applied tensile load [35,40,41].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Liu

Wang

et al. 2017

Materials & Design

View full text Add to dashboard Cite

Section: Accepted Manuscriptmentioning

confidence: 99%

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Liu

Wang

et al. 2017

Materials & Design

View full text Add to dashboard Cite

“…In order to improve the mechanical properties of this alloy, numerous treatment processes have been invented and investigated in the past several decades. In general terms, the treatment processes could be classified into two categories: body treatments such as heat treatments (HTs), particle reinforced metal matrix composites (PRMMCs) [4][5][6], and surface treatments such as surface melting (SM) [7], shot peening (SP) [8,9], and laser peening (LP) [10][11][12][13]. For example, Hong et al [6], from Shanghai Jiaotong University, investigated the effect of cryogenic pre-treatment on aging behavior of in-situ TiB 2 /Al-Cu-Mg composites and found that the ultimate tensile strength and the elongation of the samples aged with a cryogenic pre-treatment were lower than the samples without cryogenic pre-treatment, while the hardness and the yield strength were higher.…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties and Microstructures of a 2024-T351 Aluminum Alloy Subjected to Cryogenic Treatment

Zhou

Huang

et al. 2016

Metals

View full text Add to dashboard Cite

Abstract:The aim of this study was to investigate the effects of the cryogenic treatment (CT) using liquid nitrogen on tensile properties and microstructures of the 2024-T351 aluminum alloy. Tensile tests were carried out, and tensile fractures were observed using a scanning electron microscope (SEM). The microstructure evolution of 2024-T351 subjected to CT was also studied using both an optic microscope (OM) and a SEM. The components of the second phase were tested with an energy dispersive spectrometer (EDS). The results showed that both the ultimate strength and the yield strength of the 2024-T351 aluminum alloy could be improved through CT without the sacrifice of elongation. In addition, tensile fractures showed that the plasticity of 2024-T351 aluminum might also be improved, as the dimples in the fracture of the CTed specimens were markedly more uniform compared with the untreated specimen. The phenomenon of grains refinement (GR) was found through microstructure observation. It was also found that the second phases were distributed more uniformly after CT. A conceivable mechanism concerning the shrinking effect and crystal grain movement was raised to explain the experimental phenomena. The effects of CT on residual stress in the 2024-T351 aluminum alloy are discussed herein. Measurements showed that tensile residual stress in 2024-T351 was removed, and slight compressive residual stress was generated after CT. This may also contribute to the improvement of the tensile properties of the alloy.

show abstract

“…The crystal structure of Al 3 Ti is tetragonal (D0 22 ) and the lattice constants a and c are 0.3849 and 0.8610 nm, respectively and α‐Al is fcc structure and the lattice constant a is 0.40495 nm . According to Equation , the value of lattice mismatches between (001) and (010) crystal planes of Al 3 Ti and (001) of a‐Al can be calculated to 5.0% and 5.7%, respectively . Therefore, Al 3 Ti particles act as an effective refiner for pure Al.…”

Section: Resultsmentioning

confidence: 99%

Microstructures and Mechanical Properties of Al₃Ti/Al Composites Produced In Situ by High Shearing Technology

et al. 2018

View full text Add to dashboard Cite

Due to its low density, high strength, and stiffness the intermetallic phase Al 3 Ti is a good candidate as reinforcement for Al alloys. In this work, in situ Al 3 Ti particle reinforced Al composites are fabricated from Ti particles and Al melt via melt stirring with a high shearing mixer. Microstructure and mechanical properties are investigated. The results indicate that, owing to the high shearing effect and intensive macroscopic flow of the melt, reinforced particles are distributed homogeneously on the microscopic and macroscopic scale. Furthermore, Al 3 Ti particles are proved to be effective nuclei for heterogeneous nucleation of α-Al, thus the grain size of the Al matrix is significantly decreased. As a result of the fine grains and the uniform distribution of Al 3 Ti particles, E-modulus, yield, and tensile strength of the composites are enhanced.

show abstract

Effect of reaction temperature on the microstructures and mechanical properties of high-intensity ultrasonic assisted in-situ Al3Ti/2024 Al composites

Cited by 38 publications

References 26 publications

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Tensile Properties and Microstructures of a 2024-T351 Aluminum Alloy Subjected to Cryogenic Treatment

Microstructures and Mechanical Properties of Al₃Ti/Al Composites Produced In Situ by High Shearing Technology

Contact Info

Product

Resources

About

Effect of reaction temperature on the microstructures and mechanical properties of high-intensity ultrasonic assisted in-situ Al3Ti/2024 Al composites

Cited by 38 publications

References 26 publications

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Effect of combined addition of Al-Ti-B ribbon and Zr element on the microstructure, mechanical and damping properties of ZA22 alloy

Tensile Properties and Microstructures of a 2024-T351 Aluminum Alloy Subjected to Cryogenic Treatment

Microstructures and Mechanical Properties of Al3Ti/Al Composites Produced In Situ by High Shearing Technology

Contact Info

Product

Resources

About

Microstructures and Mechanical Properties of Al₃Ti/Al Composites Produced In Situ by High Shearing Technology