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Corrosion Aerospace

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Technical Paper

Composite Materials Inspection Methods, Equipment Selection
2005-10-03
2005-01-3316
The latest development in aircraft and aerospace structures is composite materials, which provide high strength, high stiffness, corrosion resistance, ease of fabrication, lower weight and eventual fuel savings. ...The strength/stiffness-to-weight ratio of composite materials has been proved higher than metals. Along with the development of materials, a very essential aspect is their maintenance and inspection. ...Only a few equipment are available at this time to enable effective inspection of composite material failures - delamination, disbonding, water ingestion, fiber fretting etc, which are quite different from metal failures.
Technical Paper

Composite Structure Utilization - Commercial Airplanes
2005-10-03
2005-01-3315
The advantage of higher strength to weight and higher stiffness to weight ratios for composite structure compared to metallic structure is well known in the aerospace industry, especially to commercial airline world. ...The non-metallic composite structure has an excellent property of resistance to corrosion. The structure is more damage tolerant due to the absence of fastener holes.
Journal Article

Predicting Impact Damage, Residual Strength and Crashworthiness of Composite Structures
2016-04-05
2016-01-0497
In essence, this aspirational objective requires the ability to reliably predict the evolution and progression of damage in composites. The aerospace industry has been at the forefront of developing advanced composites modelling tools. ...As the automotive industry transitions towards the increased use of composites in mass-produced vehicles, similar challenges in the modelling of composites will need to be addressed, particularly in the reliable prediction of crashworthiness. ...While thermoset composites have dominated the aerospace industry, thermoplastics composites are likely to emerge as the preferred solution for meeting the high-volume production demands of passenger road vehicles.
Technical Paper

Method of Production of Composite Powder Cu-Ni Suitable for Use in Selective Laser Melting
2016-09-27
2016-01-2121
The technology was proposed of production of copper-nickel composite micro-powders by the gaseous deposition of nickel on the surface of copper powder. The vaporization of nickel was implemented by using magnetron. ...The possibility of using of obtained composite powder in selective laser melting (SLM) was evaluated. It is assumed that the structure of the obtained composite material (SLM) will have inclusions of nickel and continuous chain of copper. ...It is assumed that the structure of the obtained composite material (SLM) will have inclusions of nickel and continuous chain of copper. This structure will have high mechanical properties and high electrical conductivity.
Technical Paper

Influence of Hot Extrusion on Microstructure and Slurry Erosive Behaviour of Al6061-Si3N4-Cf Hybrid Composite (SAE Paper 2022-01-0049)
2022-03-08
2022-01-0049
Microstructural studies were conducted on specimens of cast and hot extruded base alloy, it’s composite & hybrid composite. Slurry erosive wear tests were performed by using 312 μm size silica sand particles in 3.5% NaCl solution. ...In recent decades, silicon nitride (Si3N4) and carbon fibres (Cf) have been the most popular candidate materials as reinforcements in the production of metal matrix composites (MMCs) due to their superior wear and corrosion resistance. Al6061 is the most sought after matrix alloy owing to its excellent formability among all class of aluminium alloys. ...Several researchers have reported on dry sliding wear and corrosion properties of cast composite with carbon fibres and silicon nitride as reinforcements but limited information is available related to the slurry erosive wear behaviour of hot extruded hybrid MMCs with carbon fibre as one of the reinforcement.
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