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Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment. It can lead to unexpected and sudden failure of normally ductile metal alloys subjected to a tensile stress, especially at elevated temperature. SCC is highly chemically specific in that certain alloys are likely to undergo SCC only when exposed to a ...
Cast aluminium alloys yield cost-effective products due to the low melting point, although they generally have lower tensile strengths than wrought alloys. The most important cast aluminium alloy system is Al–Si, where the high levels of silicon (4–13%) contribute to give good casting characteristics. Aluminium alloys are widely used in ...
This alloy usually contains a minimum of 20 percent aluminum. Conventional case depth for carbon and alloy steel is 0.0127-0.0508 centimeters, and for stainless and nickel base alloys is 0.00508-0.0254 centimeters. [7] After cooling, the metal is removed from the retort and from the excess powder.
Magnesium wheels were originally used for racing, but their popularity during the 1960s led to the development of other die-cast wheels, particularly of aluminium alloys. The term "mag wheels" became synonymous with die-cast wheels made from any material, from modern aluminium alloy wheels to plastic and composite wheels used on items like ...
AlSi10Mg-0403 alloy is a specific type of AlSi10Mg that comprises aluminium alloyed with silicon of mass fraction up to 10%, small quantities of magnesium and iron, along with other minor elements. The presence of silicon makes the alloy both harder and stronger than pure aluminium due to the formation of Mg 2 Si precipitate.
A casting defect is an undesired irregularity in a metal casting process. Some defects can be tolerated while others can be repaired, otherwise they must be eliminated. They are broken down into five main categories: gas porosity, shrinkage defects, mould material defects, pouring metal defects, and metallurgical defects.
Cast alloys contain about 4% copper and small amounts of other additives that improve castability, including titanium and magnesium. The starting material is primary aluminium; in contrast to other cast aluminium alloys, secondary aluminium (made from scrap) is not used because it reduces elongation and toughess at break.
BBS continues to produce one-, two-, and three-piece forged wheels out of aluminum and magnesium alloys, as well as high performance flow-formed wheels and low-pressure cast wheels. [20] BBS also actively uses specialized quality and weight optimization methods, such as CNC back-milled spokes , x-ray inspection , FEM analysis, flow-forming ...