Degree+of+hardness
21Rockwell hardness number — a number indicative of the degree of relative hardness of materials, determined by measuring the depth of the impression made by a steel or diamond penetrator pressed into the surface of the material being tested. There are a number of Rockwell… …
22international rubber hardness degree — tarptautinis gumos kietumo laipsnis statusas T sritis Standartizacija ir metrologija apibrėžtis Gumos kietumas yra matuojamas TGKL vienetais pagal ISO 48. Mažas kietumas – nuo 10 TGKL iki 35 TGKL, vidutinis kietumas – nuo 35 TGKL iki 85 TGKL,… …
23Knoop hardness number — See under number. * * * a number indicative of the degree of relative hardness of a material, calculated from the load employed and the length of the long axis of the impression made by the rhomboidal pyramid of a diamond pressed into the surface …
24Vickers hardness number — a number indicative of the degree of relative hardness of materials, determined by measuring the long diagonals of indentation made by pressing the pyramidal point of a diamond into the surface of the material being tested; equal to the load in… …
25American hardness — a measure of hardness used in the USA. One degree is equal to 1 mg/l …
26international rubber hardness degree — (IRHD) a unit used to measure the hardness of rubber and similar materials (technically known as elastomers). Measurements are made using an IRHD durometer, and the results are usually similar, but not identical, to readings made with the… …
27vickers hardness test — ˈvikə(r)z noun Usage: usually capitalized V Etymology: probably from Vickers Armstrong Ltd., British steel manufacturing concern : an indentation hardness test for metals in which a 136 degree diamond pyramid is pressed into the surface of the… …
28Tempering — Tem per*ing, n. (Metal.) The process of giving the requisite degree of hardness or softness to a substance, as iron and steel; especially, the process of giving to steel the degree of hardness required for various purposes, consisting usually in… …
29Tempering color — Tempering Tem per*ing, n. (Metal.) The process of giving the requisite degree of hardness or softness to a substance, as iron and steel; especially, the process of giving to steel the degree of hardness required for various purposes, consisting… …
30Ceramography — is the art and science of preparation, examination and evaluation of ceramic microstructures.[1] Ceramography can be thought of as the metallography of ceramics. The microstructure is the structure level of approximately 0.1 to 100 µm, between… …
