Interfacial reactions in Al/TiC particulate composites produced by pressure infiltration

Arpón, R.; Narciso, J.; Louis, E.; García‐Cordovilla, C.

doi:10.1179/026708303225004459

Cited by 17 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous research showed that aluminum and TiC can stably coexist above a temperature of 750 °C 32 . Furthermore, the materials have good wettability (θ ≈ 51°) above 800 °C 33 . An SEM image of the TiC particles (40–60 nm in diameter) used can be found in Supplementary Fig.…”

Section: Methodsmentioning

confidence: 99%

Nanoparticle-enabled phase control for arc welding of unweldable aluminum alloy 7075

et al. 2019

View full text Add to dashboard Cite

Lightweight materials are of paramount importance to reduce energy consumption and emissions in today’s society. For materials to qualify for widespread use in lightweight structural assembly, they must be weldable or joinable, which has been a long-standing issue for high strength aluminum alloys, such as 7075 (AA7075) due to their hot crack susceptibility during fusion welding. Here, we show that AA7075 can be safely arc welded without hot cracks by introducing nanoparticle-enabled phase control during welding. Joints welded with an AA7075 filler rod containing TiC nanoparticles not only exhibit fine globular grains and a modified secondary phase, both which intrinsically eliminate the materials hot crack susceptibility, but moreover show exceptional tensile strength in both as-welded and post-weld heat-treated conditions. This rather simple twist to the filler material of a fusion weld could be generally applied to a wide range of hot crack susceptible materials.

show abstract

Section: Methodsmentioning

confidence: 99%

Nanoparticle-enabled phase control for arc welding of unweldable aluminum alloy 7075

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Afterwards, Ti atoms gather around solid C particles and react with C to form TiC. An amount of literature reports that TiC is mainly formed by the reaction between excess Ti or formed Al 3 Ti and solid C [20,34]:…”

Section: Phase Transformation and Microstructure Transformation Of Almentioning

confidence: 99%

Investigation of Microstructure of Al-5Ti-0.62C System and Synthesis Mechanism of TiC

et al. 2020

View full text Add to dashboard Cite

Al-Ti-C master alloys have been widely investigated by various researchers. However, their refining effectiveness is still severely compromised by the preparation process. In this work, the aluminum melt in-situ reaction was carried out to synthesize the Al-5Ti-0.62C, and its refining performance was estimated. The thermodynamics calculation and differential scanning calorimeter experiment were used to investigate the synthesis mechanism of TiC. Quenching experiment was conducted to explore phase and microstructure transformation of the Al-5Ti-0.62C system. The results show that the main phases of Al-5Ti-0.62C master alloys are α-Al, Al3Ti, and TiC and it has a positive effect on commercial pure aluminum refining. Commercial pure aluminum is completely refined into the fine equiaxed structure by adding 0.3% Al-5Ti-0.62C master alloy. TiC particles mainly distribute in the grain interior and grain boundaries. The excess Ti came from the dissolution of Al3Ti spreading around TiC and finally forming the Ti-rich zone to promote the nucleation of α-Al. The experiments certified that TiC was formed by the reaction between solid C and excess Ti atoms. The main reactions in the Al-5Ti-0.62C system were that solid Al is transferred into liquid Al, and then liquid Al reacted with solid Ti to form the Al3Ti. At last, the release of a lot of heat promotes the formation of TiC which formed by the Ti atoms and solid C.

show abstract

“…Wetting and interfacial reactions determine the quality of the bond between the various components, and therefore greatly influence the final mechanical properties of the composites. Arpon et al (2003) showed that interfacial reaction is important in the production of particulated metal matrix composites. Ş imşir (2007) investigated the effect of microstructure in the interface region on the fracture toughness of fiber-reinforced gray cast iron.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and microstructural properties of low-carbon steel-plate-reinforced gray cast iron

Avcı

İlkaya

Şi̇mşi̇r

et al. 2009

Journal of Materials Processing Technology

View full text Add to dashboard Cite

Interfacial reactions in Al/TiC particulate composites produced by pressure infiltration

Cited by 17 publications

References 16 publications

Nanoparticle-enabled phase control for arc welding of unweldable aluminum alloy 7075

Nanoparticle-enabled phase control for arc welding of unweldable aluminum alloy 7075

Investigation of Microstructure of Al-5Ti-0.62C System and Synthesis Mechanism of TiC

Mechanical and microstructural properties of low-carbon steel-plate-reinforced gray cast iron

Contact Info

Product

Resources

About