Interface formation and bonding control in high-volume-fraction (TiC+TiB2)/Al composites and their roles in enhancing properties

Yang, Hong–Yu; Wang, Zheng; Chen, Liang‐Yu; Shu, Shili; Qiu, Feng; Zhang, Lai-Chang

doi:10.1016/j.compositesb.2021.108605

Cited by 158 publications

(28 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surprisingly, the maximum microhardness value of the as-formed B 4 C p /Al composite samples (180 HV 0.1 ) was about six times as high as that of the Al alloy sample (31 HV 0.1 ), demonstrating the great effect of B 4 C particle reinforcement on the microhardness of the Al matrix. Similar effects were also found in the cases of SiC p /Al [ 23 , 33 ], (TiC + TiB 2 )/Al [ 34 ], SiC p /A365 [ 35 ] and TiC/Ni [ 36 ] composites prepared via SLM.…”

Section: Resultssupporting

confidence: 72%

Preparation of B4Cp/Al Composites via Selective Laser Melting and Their Tribological Properties

et al. 2022

View full text Add to dashboard Cite

B4C-particle-reinforced Al (B4Cp/Al) composites are widely used in various areas, e.g., armors, electronic packaging and fuel storage, owing to their several outstanding properties including high specific rigidity, excellent wear resistance and light weight. Selective laser melting (SLM) is favored in manufacturing complex components because of its high raw material utilization rate and high efficiency. In this work, a B4Cp/Al composite was successfully synthesized by SLM, and the effects of one of the most important parameters, scanning speed (100–700 mm/s), on the phase composition, density, microhardness and tribological properties of the samples were investigated. The microhardness, relative density and dry-sliding wear resistance of as-prepared B4Cp/Al composites were improved with the decrease in scanning speed, and the sample fabricated at a scanning speed of 100 mm/s exhibited a relative density as high as about 97.1%, and a maximum microhardness of ~180 HV0.1 (approximately six times more than that of the SLM-formed pure Al sample, 31 HV0.1), a minimum wear rate of 4.2 × 10−5 mm3·N−1·m−1 and a corresponding friction coefficient of 0.41. In addition, abrasive wear, adhesive wear and oxidation wear were found to be behind the overall wear behavior of as-prepared B4Cp/Al composites.

show abstract

Section: Resultssupporting

confidence: 72%

Preparation of B4Cp/Al Composites via Selective Laser Melting and Their Tribological Properties

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The θ phases precipitated during aging treatment pin the dislocations under load and then improve the strength of the alloys, which is called Orowan strengthening. We used the modified Orowan equation to calculate the Orowan stress due to plate-like θ precipitate strengthening (∆σ θ ) according to the following modified Orowan equation [39,[46][47][48]:…”

Section: Discussionmentioning

confidence: 99%

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Wang

Miao

Kou

et al. 2021

Metals

Self Cite

View full text Add to dashboard Cite

An experimental investigation was carried out to study the effects of solid solution treatment and aging treatment on the microstructures and mechanical properties of an Al-13Si-5Cu-2Ni alloy. The results show that the size of eutectic silicon decreased with solid solution treatment temperature increasing until 510 °C. Subsequently, the eutectic silicon size continued to increase as the temperature increased to 520 °C. Initially, the acicular eutectic silicon of the as-cast alloy was 10.1 μm in size. After the solid solution treatment at 510 °C, the eutectic silicon size was reduced to 6.5 μm. The θ′ phase is the main strengthening phase in the alloy, therefore, the effect of aging treatment on θ′ phases was explored. As the aging time increased, the diameter, length, and fraction volume of the θ′ phases were found to increase. The main reason for the improved performance of this alloy following heat treatment is the passivation spheroidization of the silicon phase and Orowan strengthening due to the θ′ phases. The optimal tensile strength of an Al-13Si-5Cu-2Ni alloy was obtained after solid solution treatment at 510 °C for 8 h followed by an aging treatment at 165 °C for 8 h. Therefore, this work has great significance for promoting the application of Al alloys at high temperatures.

show abstract

“…Meanwhile, to analyze the effect of ultrasonic assistance on the volume fraction of each phase in the coatings, the following formula was used. [ 66–68 ]

V_{f, i} = A_{i} {(\sum A_{i})}^{- 1}

where V f,i is the volume fraction of the phase, A i is the total area of the phase, and ∑ A i is the total area of all phases in an XRD pattern.…”

Section: Methodsmentioning

confidence: 99%

Bioactive Performances of Surface Modification of Ti–6Al–4V Jointly Using Ultrasonic‐Assisted Microarc Oxidation and Hydrothermal Treatment

et al. 2022

Self Cite

View full text Add to dashboard Cite

With the aim of further enhancing the bioactive performance of Ti–6Al–4V, ultrasonic‐assisted microarc oxidation (MAO) and hydrothermal (HT) treatments are combined to produce denser, more uniform hydroxyapatite (HA) crystals on the MAO coating herein. More Ca elements can be deposited on the coating and more TiO2 can be generated to form a thicker coating via ultrasonic assistance. Meanwhile, the MAO coating with ultrasonic assistance avoids the appearance of heterogeneous areas and homogenizes the distribution of elements. Those positive effects of ultrasonic‐assisted MAO coating provide favorable conditions for the subsequent HT treatment to form dense and uniform HA crystals. In vitro experiment shows that the ultrasonic‐assisted MAO coating has a higher number of MG63 cells compared with other samples. Moreover, the formation of HA crystals improves the biological activity of all samples. In the ultrasonic‐assisted sample after HT treatment, denser and more uniform HA crystals on the coating surface result in the higher alkaline phosphatase activity of the sample.

show abstract

Interface formation and bonding control in high-volume-fraction (TiC+TiB2)/Al composites and their roles in enhancing properties

Cited by 158 publications

References 59 publications

Preparation of B4Cp/Al Composites via Selective Laser Melting and Their Tribological Properties

Preparation of B4Cp/Al Composites via Selective Laser Melting and Their Tribological Properties

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Bioactive Performances of Surface Modification of Ti–6Al–4V Jointly Using Ultrasonic‐Assisted Microarc Oxidation and Hydrothermal Treatment

Contact Info

Product

Resources

About