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mechanical strengthening

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  • Strengthening mechanisms of materials — Methods have been devised to modify the yield strength, ductility, and toughness of both crystalline and amorphous materials. These strengthening mechanisms give engineers the ability to tailor the mechanical properties of materials to suit a… …   Wikipedia

  • Grain boundary strengthening — (or Hall Petch strengthening) is a method of strengthening materials by changing their average crystallite (grain) size. It is based on the observation that grain boundaries impede dislocation movement and that the number of dislocations within a …   Wikipedia

  • Solid solution strengthening — is a type of alloying that can be used to improve the strength of a pure metal. The technique works by adding atoms of one element (the alloying element) to the crystalline lattice another element (the base metal). The alloying element diffuses… …   Wikipedia

  • Self-Strengthening Movement — (zh t|t=洋務運動 or 自強運動); c 1861–1895 was a period of institutional reforms initiated during the late Qing Dynasty following a series of military defeats and concessions to foreign powers. [http://www.wsu.edu/ dee/CHING/SELF.HTM] To make peace with… …   Wikipedia

  • Nanocomposite — A nanocomposite is as a multiphase solid material where one of the phases has one, two or three dimensions of less than 100 nanometers (nm), or structures having nano scale repeat distances between the different phases that make up the… …   Wikipedia

  • Trabecula — A trabecula (plural trabeculae. From Latin for small beam.) is a small, often microscopic, tissue element in the form of a small beam, strut or rod, generally having a mechanical function, and usually but not necessarily composed of dense… …   Wikipedia

  • Wenvoe transmitting station — Infobox UK Transmitter name = Wenvoe height = convert|225|m|ft|0|lk=on gridref = ST110742 built = demolished = collapsed = relay = BBC = BBC Wales ITV = HTV WalesThe Wenvoe transmitting station is a facility for broadcasting and… …   Wikipedia

  • Caldbeck transmitting station — Infobox UK Transmitter name = Caldbeck height = convert|337|m|ft built = 2008 demolished = collapsed = BBC = BBC North East and Cumbria ITV = ITV BorderThe Caldbeck transmitting station is a broadcasting and telecommunications facility, situated… …   Wikipedia

  • Strength of materials — Internal force lines are denser near the hole, a common stress concentration In materials science, the strength of a material is its ability to withstand an applied stress without failure. The applied stress may be tensile, compressive, or shear …   Wikipedia

  • steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

  • United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

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