| Brinell Hardness Test | (english) A common standard method of measuring the hardness of materials. The smooth surface of the metal is subjected to indentation by a hardened steel ball under pressure. The diameter of the indentation, in the material surface, is then measured by a microscope and the hardness value is read from a chart or determined by a prescribed formula. |
| Brinell Hardness Testing | (english) Method of determining the hardness of materials; involves impressing a hardened ball of specified diameter into the material surface at a known pressure (10-mm ball, 500-kg load for aluminum alloys). The Brinell hardness number results from calculations involving the load and the spherical area of the ball impression. Direct-reading testing are generally used for routine inspection of forgings, and as a heat treat control function. |
| Brite | (english) 1) Regular galvanize coating (not minimized spangle or JP). 2) Rolls that have no grit; smooth finish on surface of steel. |
| Brittle Fracture | (english) Fracture with little or no plastic deformation. |
| Brittle Fracture 2 | (english) Fracture preceded by little or negligible plastic deformation. |
| Brittle Inter-metallic Layer | (english) An iron-zinc alloy layer formed between the steel substrate and the free zinc of galvanized coatings. |
| Brittleness | (english) The tendency of a metal or material to fracture without undergoing appreciable plastic deformation. |
| Broach | (english) A long, tapered cutting tool with serrations which,when forced through a hole or across a surface, cuts a desired shape or size. |
| Broaching | (english) Smoothing machined holes or outside surfaces of castings by drawing pushing on or more broaches (special cutting tools) through the roughed out hole. |
| Broaching 2 | (english) Multiple shaving, accomplished by pushing a tool with stepped cutting edges along the piece, particularly through holes. |