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Metallography
| Англо-русский словарь по геологии |
- The science dealing with the constitution and structure of metals and alloys as revealed by the unaided eye or by such tools as low-powered magnification, optical microscope, electron microscope, and diffraction or x-ray techniques.
- Science and practice of microscopic testing, inspection and analysis of a metal’s structure, typically at magnifications from 50 ? to 2500 ?.
- The study of the microstructure of metals and alloys by various techniques including optical and electron microscopy.
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Металлография, русский
- , наука о структуре металлов и сплавов; раздел металловедения. исследует закономерности образования структуры металла, изучает его макро- и микроструктуру, атомно-кристаллическое строение, влияние структуры на механические, электрические, магнитные и др. свойства.
- Изучение структуры металлов и сплавов различными методами, особенно оптической и электронной микроскопией.
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Constitution, английский
- The general health and strength of a person she has a strong constitution or a healthy constitution. he has a weak constitution and is often ill.
- Was one of six “super-frigates” authorized for construction by the naval act of 1794 (see warship rating). launched in 1797, and known affectionately as “old ironsides,” she is frequently claimed to be the oldest commissioned warship in the world, but in fact that honor belongs to hms victory who is 32 years older. however, the latter is in dry dock, while constitution is still afloat.
- An act of establishing by pointing to the fundamental components, procedures, laws or forms of organization that a system must necessarily possess for it to be of a certain kind. so, the electoral process which determines the membership and composition of a governing group constitutes that government as a representative one. organizational closure (and several other requirements) constitutes a system as an autopoietic one. "self-definition" is a synonym for "constitution." in politics a "declaration of independence" or a formal "constitution" has this effect. in d`arcy thompson`s principle that "growth creates form, but form limits growth," growth and form constitute each other.
Magnification, английский
- The ratio of image to object size in an optical system. may be real (linear) or apparent (angular). milliradian (mrad)1/1000th of a radian, or 0.0573 degrees; the angle whose tangent is 0.001.
- The increase in the apparent or perceived size or subtended angle of an image in relation to actual size of object.
- Увеличение ~ of lens увеличение лупы
- The power of a microscope (or lens) to produce an image that appears larger than the actual specimen, expressed as a factor of the actual size
Microscope, английский
- Microscopio
- A scientific instrument with lenses, which makes very small objects appear larger the tissue was examined under the microscope. under the microscope it was possible to see the cancer cells. comment: in an ordinary or light microscope the image is magnified by lenses. in an electron microscope the lenses are electromagnets and a beam of electrons is used instead of light, thereby achieving much greater magnifications.
- Device used to form a highly magnified image of tiny objects for clear visualization
- Instrument that provides enlarged images of small objects. microscope, compound: conventional microscope, using geometrical optics for magnification. also called laboratory microscope. microscope, interference: magnifier using the wavelength of light as a unit of measure for surface contour and other characteristics. microscope, metallographic: metallurgical microscope incorporating a camera. also called a metallograph. most metallographic microscopes share these features: (a) stand with concealed shock absorbers, (b) intense light source, (c) inverted stand so that the test object is face down, (d) viewing screens for prolonged tasks such as dirt count or grain size measurements, (e) bright, dark and polarized illumination options. microscope, metallurgical: microscope designed with features suited for metallography. microscope, phase contrast: laboratory microscope with two additional optical elements to transmit both diffracted and undiffracted light, revealing refractive index discontinuities in a completely transparent test object. microscope, polarizing: microscope with polarizing elements to restrict light vibration to a single plane for studying material with directional optical properties. as fibers, crystals, sheet plastic and materials under strain are rotated between crossed polarizers on the microscope stage, they change color and intensity in a way that is related to their directional properties. mig welding: see gas metal arc welding.
- Instrument that provides enlarged images of very small objects.
Diffraction, английский
- The "spreading" of waves into the lee of obstacles such as breakwaters by the transfer of wave energy along wave crests. diffracted waves are lower in height than incident waves.
- Дифракция
- Deviation of the direction of propagation of a radiation, determined by the wave nature of radiation, and occurring when the radiation passes the edge of an obstacle.
- A wave property which creates deviation from a straight line when the beam passes near an edge of an opaque object. deviation of part of a beam, determined by the wave nature of radiation and occurring when the radiation passes the edge of an opaque obstacle.
- Light curves or travels around small circular objects.
- The changing of direction (bending or spreading) that occurs when a light wave interacts with an opening or barrier
- (1) in acoustics, the reflection of a wave front when passing the edge of an ultrasonically opaque object. (2) in radiation technologies, a special case of scatter, where coherently scattered photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also xray diffraction.
- (1) в акустике - отражение волнового фронта при прохождении края непрозрачного для ультразвука объекта. (2) в радиационных технологиях - особый случай рассеяния, когда когерентно рассеянные фотоны подвергаются интерференции или усилению, что приводит к образованию структур, указывающих на рассеивающую среду. см. также дифракция рентгеновских лучей.
- (1) in radiographic testing, special case of scatter, where coherently scattered (full intensity is retained) photons undergo interference or reinforcement, resulting in patterns indicative of the scattering medium. see also x-ray diffraction. (2) in ultrasonic testing, deflection of a wavefront when passing the edge of an ultrasonically opaque object.15
- Deflection of a wavefront when passing the edge of an ultrasonically opaque object.7,22
Microscopic, английский
- Observable only with the aid of a microscope.
- Objects or organisms that are too small to be seen with the naked eye.
Inspection, английский
- Surveillance
- Инспекция; осмотр
- Инспекция. аудит, проводимый официальными инстанциями. нс: действие уполномоченных органов, заключающееся в официальной проверке документации, оборудования, иных материалов, имеющих, по мнению уполномоченных органов, отношение к клиническому исследованию и находящихся в исследовательском центре, в помещениях спонсора и/или контрактной исследовательской организации, а также иных организациях, имеющих, по мнению уполномоченных органов, отношение к исследованию.
- The mode of working up the dead-reckoning by computed nautical tables. also, a general examination or survey of all parts of a sea or land force by an officer of competent authority.
- Инспектирование; проверка; контроль
- The process of measuring, examining, testing, gaging or otherwise comparing the unit with the applicable requirements. (asqc) . the term "requirements" sometimes is used broadly to include standards of good workmanship. (asqc)
- The examination of a good or service to ensure that it complies with specifications.
- The process of examining textiles for defects at any stage of manufacturing and finishing.
- Обследование
- Process of examining for possible defects or for deviation from established standards.
- Part of the penetrant testing process involving visual examination of a part for test indications after completion of the penetrant processing steps.
Microstructure, английский
- Structural feature of a soil mass which cannot be identified completely by
- The structure of polished and etched metals as revealed by a microscope at a magnification greater than ten diameters.
- Structure of polished and etched metal as revealed by a microscope at a magnification greater than ten diameters. mig welding: see welding, gas metal arc. glossary m-n 505
Microscopy, английский
- The science of the use of microscopes
- Use of microscope to produce a magnified image of microscopic objects
Magnificat, английский
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Metalloid, английский
Металлографический, русский
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