Figure 2 shows scanning electron microscopy (SEM) images of the cast structure
after ageing treatment, in which various phases were analysed via energy dispersive X-ray spectrometry (EDS).
It is known that the presence of cast structure
aluminium 6061 reduces the quality of aluminium strips.
As one may see from figure 1 (a) brass consists in cast structure
, with nonhomogeneous disposal of a solid solution and P solid solution and bronze (figure 1 b) has a cast structure
formed from a solid solution, [gamma] 2 solid solution and rounded eutectic of ([alpha]+[[gamma].sub.2]).
Ultrasonic testing and magnetic flaw detection of CESC castings showed dense cast structure
and absence of micro-cracks or any defects.
The coarse grain cast structure
is broken up and replaced by a fine grain wrought structure providing a sound center product with excellent structural integrity.
Bailey mounted the Richardson Observatory telescope on an improved version of his Riverside mounting, using a hollow cast structure
for the oversize yoke, the horseshoe turning on roller bearings.
It was then decided to eliminate as many welds as possible and a bucket was designed around the single continuous cast structure
." So, a high strength chrome-nickel-molybdenum casting was manufactured.
Hot forging refines and densifies the characteristic cast structure
of the starting stock, thereby eliminating inherent cast porosity, redistributing segregation more evenly via metal flow, and reducing the size of as-cast large inclusions.
Eutectic alloys--These alloys have between 10% and 13% silicon, and consist mainly of Al-Si eutectic in the cast structure
. They have a narrow freezing range, excellent fluidity and are easy to cast.
Heat treatment does not change the typical signs of cast structure
in general but leads to formation of the fine troostitic structure after tempering.