Daniel Jack Flashcards
What can Aluminium be alloyed with?
Copper, being primarily used for aircraft structures. Because of the high tensile strength,
Also can be combined with Magnesium and silicon used in bicycles frames, truck and marine structures.
How does Precipitation Hardening effect the microstructure of non-ferrous metals?
The results are a hard and brittle intermetallic compound.
What is the point Dye Penetrant Inspection?
To detect surface-breaking defects in metals.
How does ultrasound inspection work?
Ultrasound inspection works by introducing high-frequency sound waves into the material. These sound waves travel through the material and reflect off any internal flaws differently than they do from the surrounding material. The reflections are then analyzed to interpret and locate the size and where it is.
What is the point of NTD (non-destructive testing) on aircraft
To ensure the safety of passengers, to ensure the longevity of the parts and performance.
What does annealing do to the microstructure of non-ferrous metals?
The result is an equiaxed grain structure.
What are the different types of heat treatments for non-ferrous metals.
Annealing, and precipitation hardening, alloying, solid solution hardening
What are the applications of alloys in the aerospace industry.
Aluminum alloys are extensively used for structural components due to their high strength-to-weight ratio and thus helping with fuel efficiency
How does Annealing effect non-ferrous metals?
Annealing primarily aims to make a metal softer and more ductile, facilitating easier fabrication or machining. It also helps in removing residual stresses induced during forming or machining, thus improving the material’s overall stability and performance.
How does Solid solution hardening effect non-ferrous metals?
This process is used to enhance the strength and hardness of a metal through the addition of alloying elements that form a homogeneous solid solution with the base metal.
What defines macrostructure and microstructure in non-ferrous metals?
Macrostructure refers to the large-scale structure of a metal including features like grain boundaries, phases, and defects such as cracks. Microstructure, involves the structure at a microscopic level, revealing details such as the arrangement of atoms, grain size, phase distribution.
How do microstructural changes impact the mechanical properties of non-ferrous metals?
Microstructural changes, like grain refinement and precipitate formation, can increase strength and hardness.
How does smaller grain size impact the yield strength of non-ferrous metals?
Smaller grain size increases the yield strength of non-ferrous metals by creating more grain boundaries, which makes the metal stronger but very brittle.
When is Gamma Ray Inspection preferred over X-ray Inspection?
Gamma Ray Inspection is preferred over X-ray Inspection for thicker sections of metal, such as engine blocks and critical structural elements, because gamma rays have deeper penetration capabilities.
Why is NDT important for quality control in the manufacturing of aircraft components?
NDT is important for quality control in manufacturing because it ensures that components meet strict quality standards, are defect-free.
