Glossary of technical terms for the use of metallurgical engineers Terms starting with alphabet ‘Q’ Q-BOP process – It is also known as OBM process. Oxygen in this process is injected into the bath through tuyeres inserted in the bottom of the furnace. Each tuyere is made from two concentric tubes forming an inner nozzle …
Read MoreGlossary of technical terms for the use of metallurgical engineers Terms starting with alphabet ‘P’ Package – It is a bundle of things packed and wrapped. In case of composites, package consists of yarn, roving, and so on in the form of units capable of being unwound and suitable for handling, storing, shipping, and use. Packaged …
Read MoreGlossary of technical terms for the use of metallurgical engineers Terms starting with alphabet ‘O’ Objective – It is an optical element that gathers light from an object being observed and focuses the light rays from it to produce a real image of the object. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, binoculars, …
Read MoreGlossary of technical terms for the use of metallurgical engineers Terms starting with alphabet ‘N’ Nabarro–Herring creep (NH creep) – It is a mechanism of deformation of crystalline materials (and amorphous materials) which occurs at low stresses and held at high temperatures in fine-grained materials. In Nabarro–Herring creep, atoms diffuse through the crystals, and the rate of creep varies inversely with the …
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