Machine vision (MV) is the term applied to a series of methods and technologies which are used in industry to inspect and analyze products and data. These uses include process control, robot guidance, and automatic inspection.
By Reginald Davey
14 Feb 2020
If mild steel is exposed to an aerated neutral aqueous solution, such as a dilute solution of sodium chloride in water, a corrosive attack will begin at defects in the oxide film on the steel.
A new physical state for polymers has been developed, such that polymers have a controlled elastic modulus and refractive index gradients through them. Potential applications include gaskets and lenses.
Severe local attack, such as pitting, (see figure 1) and crevice corrosion, can be a significant problem in stainless steels and other alloys that depend on self-healing.
The discovery of the powerful grain refining effect of zirconium was a huge step forward in the development of magnesium alloys back in 1937.
For many applications, such as buildings requiring large spans of glass, toughened glass is the only acceptable alternative.
Laminated glass comprises layers of glass in a “sandwich-type” arrangement, in which a layer of flexible polymeric material is sandwiched between two layers of glass.
Due to the electrical potential difference that develops when two dissimilar metals or alloys are connected together in an aqueous solution, the base metal will become anodic and the more noble metal will act as a cathode.
Uniform corrosion tends to occur when some surface regions become anodic for a short period, but their location and that of the cathodic regions constantly change.
Fatigue in a corrosive environment constitutes metallic corrosion.