Anchor pattern on a surface produced by abrasive blasting or acid treatment.

(1) An isothermal reversible reaction in which a solid solution is converted into two or more intimately mixed solids on cooling, the number of solids formed being the same as the number of components in the system. (2) An alloy having the composition ind ...

Heat treatment carried out in steel to reduce internal stresses.

A term used in the automotive industry to describe the corrosion of vehicle body parts due to the collection of road salts and debris on ledges and in pockets that are kept moist by weather and washing. Also called deposit corrosion or attack.

A group of coating or welding processes in which finely divided metallic or nonmetallic materials are deposited in a molten or semimolten condition to form a coating. The coating material may be in the form of powder, ceramic rod, wire, or molten material ...

A range of corrosion potential values in which unacceptable corrosion resistance is achieved for a particular purpose.

Overvoltage associated with the liberation of hydrogen gas.

A galvanic cell caused by a difference in metal ion concentration at two locations on the same metal surface.

A device for measuring temperatures, consisting of lengths of two dissimilar metals or alloys that are electrically joined at one end and connected to a voltage-measuring instrument at the other end. When one junction is hotter than the other, a thermal e ...

An alloy having an amorphous or glassy structure. See also amorphous solid.

Localized corrosion of a metal surface, confined to a point or small area, that takes the form of cavities or pits.

The slope (dE/di) at the corrosion potential of a potential (E)/current density (i) curve. Also used to describe the method of measuring corrosion rates using this slope.

Same as intergranular corrosion. See also interdendritic corrosion.

The unit of change in the size or shape of a body due to force. Also known as nominal strain.

The opposition that a device or material offers to the flow of direct current, equal to the voltage drop across the element divided by the current through the element. Also called electrical resistance.

Thermal spraying in which coating material is fed into an oxyfuel gas flame, where it is melted. Compressed gas may or may not be used to atomize the coating material and propel it onto the substrate.

The threshold value of the corrosion potential that has to be reached to enter a protective potential range. The term used in cathodic protection to refer to the minimum potential required to supress corrosion.

Descriptive treatment of fracture, especially in metals, with specific reference to photographs of the fracture surface. Macrofractography involves photographs at low magnification (< 25x); microfractography, photographs at high magnification (>25x)

An obsolete term describing oil or grease coatings used to provide temporary protection against atmospheric corrosion.

The occurrence of embrittlement in a material below the melting point of the embrittling species. See also liquid-metal embrittlement.