Influence of friction stir processing on microstructure and properties of AA7075/TiB 2 in situ composite

Rajan, Hashikaa; Dinaharan, I.; Ramabalan, S.; Akinlabi, Esther Titilayo

doi:10.1016/j.jallcom.2015.10.108

Cited by 89 publications

(35 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the microstructure analyzed by XRD and SEM/EDS, the effective increase in strength can be attributed to the refined grains, the uniform distribution of TiB 2 particles and the increase of fine precipitates after T6 treatment. The strength is much higher than that of the FSP-treated TiB 2 /AA7075 [8] and 7075 Al alloys. The specific mechanisms will be discussed in the following.…”

Section: Thermal Stability Of the Microstructurementioning

confidence: 74%

“…particles and the increase of fine precipitates after T6 treatment. The strength is much higher than that of the FSP-treated TiB2/AA7075 [8] and 7075 Al alloys. The specific mechanisms will be discussed in the following.…”

Section: Thermal Stability Of the Microstructurementioning

confidence: 75%

“…However, casting (i.e., liquid-state solidification) generally weakens ductility and toughness due to defects like porosity, particle-matrix debonding, and especially particle clustering [6]. Even the most vigorous stirring techniques like ultrasonic dispersion during casting are unable to break the agglomerates in the melt [7], which are pushed by the solidification front and ultimately cluster along the grain boundaries in the following solidification [8,9]. It is thus very tough work to distribute nanoparticles uniformly in the metal matrix [7].…”

Section: Introductionmentioning

confidence: 99%

“…Regarding this, most of the research on FSP-treated aluminum alloys focused on non-heat-treatable alloys such as Al-Mg alloy [23,24]. The application of FSP to high-strength Al-Zn-Mg-Cu alloys has been reported in the past years [8,25,26]. However, their mechanical properties are not satisfactory due to the dilemma of fine grain size and solution treatment.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Zhang

Chen

et al. 2017

Metals

View full text Add to dashboard Cite

Abstract:In this work, a fine-grained structure with a uniform distribution of TiB 2 particles and precipitates was achieved in TiB 2 particle-reinforced (PR) Al-Zn-Mg-Cu alloys by friction stir processing (FSP). The effects of multi-pass FSP on the microstructure, and TiB 2 particle distribution, as well as the microstructural evolution in the following T6 treatment, were investigated by X-ray diffraction, scanning electron microscopy and associated electron backscattered diffraction. The results showed that the distribution of TiB 2 particles and alloy precipitates was further improved with an increase in the FSP passes. Moreover, compared with alloy segregation in the as-cast PR alloys during T6 treatment, a complete solution of the precipitates was achieved in the FSP-treated PR alloys. The fine-grained structure of the FSP-treated PR alloys was thermally stable without any abnormal growth at the high temperature of T6 treatment due to the pinning effect of dispersed TiB 2 particles. The strength and ductility of the PR alloys were simultaneously improved by the combination of FSP and T6 treatment.

show abstract

Section: Thermal Stability Of the Microstructurementioning

confidence: 74%

Section: Thermal Stability Of the Microstructurementioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Zhang

Chen

et al. 2017

Metals

View full text Add to dashboard Cite

show abstract

“…friction stir processing [16][17][18] , gas pressure infiltration 19,20 , in-situ reactive processes 21,22 , etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and microstrain evolution of Al-TiB₂ composite coating by cold spray deposition

Chen

Pala

Hussain

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

This paper investigates the microstructure evolution of Al-TiB 2 coatings prepared by cold spraying. In situ Al-TiB 2 composite powders containing uniformly distributed titanium diboride (TiB 2 ) particles with a size range of 5 to 100 nm in the Al matrix and Al/Al-TiB 2 blended powders were used as the cold spray feedstock for coating fabrication on aluminium alloy substrates. The microstructures of the feedstock powders and as-deposited coatings were characterised using scanning electron microscopy with energy dispersive X-ray (EDX) analysis and X-ray diffraction (XRD). Al/Al-TiB 2 blended powder coatings, compromising closely packed powder particles, were sprayed to an approximate thickness of 500 µm. AlTiB 2 composite coatings (approximately 50 µm thick) were obtained retaining the microstructure of the composite powders being sprayed and no evidence of detrimental phase transformation was found. However, micro-cracks were found to exist in the Al-TiB 2 coating due to the hardly deformable powder particles. Little or no microstrain was revealed in the assprayed Al-TiB 2 coating, indicating that annealing may have occurred due to the localised adiabatic heating during the spraying process. It is demonstrated that it is possible to fabricate 2 the Al-TiB 2 composite coating by cold spray deposition but further improvements to eliminate coating cracking are required.

show abstract

Wear Analysis of Friction Stir Processed Aluminium Alloy Surface Composites

Gulati

Nihal

Shukla

et al. 2021

Recent Advances in Sustainable Technologies

View full text Add to dashboard Cite

Influence of friction stir processing on microstructure and properties of AA7075/TiB 2 in situ composite

Cited by 89 publications

References 41 publications

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Fabrication and microstrain evolution of Al-TiB₂ composite coating by cold spray deposition

Wear Analysis of Friction Stir Processed Aluminium Alloy Surface Composites

Contact Info

Product

Resources

About

Influence of friction stir processing on microstructure and properties of AA7075/TiB 2 in situ composite

Cited by 89 publications

References 41 publications

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Microstructure of Multi-Pass Friction-Stir-Processed Al-Zn-Mg-Cu Alloys Reinforced by Nano-Sized TiB2 Particles and the Effect of T6 Heat Treatment

Fabrication and microstrain evolution of Al-TiB2 composite coating by cold spray deposition

Wear Analysis of Friction Stir Processed Aluminium Alloy Surface Composites

Contact Info

Product

Resources

About

Fabrication and microstrain evolution of Al-TiB₂ composite coating by cold spray deposition