This is because some of the alloying elements form oxides and other compounds at the grain boundaries, embrittling the material. |
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The effect of low levels of alloying additions on the soil corrosion of carbon steels is modest. |
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The new irons formed by alloying or by special melting and casting methods are becoming competitors to steel. |
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Once more, he will forge a character by alloying his own inner stuff with whatever the audience members bring into the theatre. |
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As described in the previous section, alloying must be sufficient to ensure that a pearlite-free microstructure is obtained in heat treatment. |
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This inside-outside electrode consists of a metal sheath surrounding a core of fluxing and alloying compounds. |
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The corresponding loss in yield strength is compensated by alloying with vanadium, nitrogen, chromium, molybdenum, and titanium. |
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Over two millennia these Mesopotamian cities developed the art of copper smelting, alloying bronze and, most importantly, writing. |
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The most common alloying elements are aluminum, nickel, silicon, tin, and zinc. |
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We have discovered that the hot-short problem can be overcome through a combination of alloying and thermomechanical processing steps. |
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Similarly, if the reaction is slowed down by addition of further alloying elements, e.g. Ni and Mn, the precipitate dispersion coarsens. |
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The presence of alloying elements such as beryllium, chromium, silicon, and aluminum modifies the nature of the oxide, making it more tenacious. |
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Nevertheless, alloying can make changes in the atmospheric-corrosion rate of carbon steel. |
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As a general rule, the higher the percentage of alloying elements in heat-resistant steels, the better the mechanical properties. |
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Cr compounds are used industrially as catalysts, corrosion inhibitors and as an alloying metal in making stainless steel and various superalloys. |
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These minor alloying agents, while improving machinability, significantly affect the weldability of copper alloys by rendering the alloys hot-crack susceptible. |
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The product is essentially used as a deoxidiser and as an alloying component in the iron and steel industry. |
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It is used either to introduce silicon as an alloying element in the manufacture of high quality steel products, or as a deoxidising agent. |
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He was working in one of Sheffield's metallurgy labs and trying different alloying elements to improve the hardness of steel. |
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Mechanical alloying, hot pressing, and hot isostatic pressing techniques are used to fabricate Cu matrix self-lubricating nanocomposites. |
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This product has a higher yield strength than ordinary low carbon steel due to the addition of alloying elements. |
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A good example of the effects of alloying is the making of a high-strength steel with good weldability. |
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Manganese is mainly used in steel as an alloying element to improve hardness, abrasion resistance, elasticity and surface condition when rolled. |
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In general, as the amount of alloying elements increases, resistivity and the magnetic hardness of the material increase and thermal conductivity decreases. |
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Again, the first numeral indicates the major alloying element or group of elements. |
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When sufficient alloying element is added, it is possible to preserve the face-centered cubic austenite at room temperature, either in a stable or metastable condition. |
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To achieve the same tensile resistance, additional alloying or a more complex cooling process would have increased the cost of the 350W steel. |
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The cost of the alloying materials used by stainless steel producers forms a very large proportion of their total production costs. |
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Of almost equal importance are the alloying metals such as manganese, chromium, molybdenum and tungsten. |
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Novel methods of heat treating advanced steels will also be studied with the objective of enhancing properties without increasing alloying costs. |
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The VOD is often used to lower the carbon content of high-alloy steels without also overoxidizing such oxidizable alloying elements as chromium. |
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The material of the crankshaft was a low alloy steel containing manganese, chromium and nickel alloying additions. |
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China is also an important supplier of manganese metal, a material used in the aluminum alloying industry for the production of cans. |
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A hard metal, rhodium is employed as an alloying agent to increase the hardness of platinum and palladium. |
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Nickel was used industrially as an alloying metal almost 2,000 years before it was isolated and recognized as a new element. |
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In December, we announced our intention to combine our zinc smelting and alloying activities with those of Australian company Zinifex. |
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Changes in density, alloying, or heat treatments can alter the physical characteristics of various products. |
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These values vary depending on alloying elements such as manganese, chromium, nickel, iron, tungsten, carbon and so on. |
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Careful control of the alloying and tempering eventually allowed for wrought iron with properties comparable to modern steel. |
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The most important alloying element is aluminum, which, in concentrations up to 8 percent by weight of the alloy, can be added as a strengthener without impairing ductility. |
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Unwrought magnesium is available as either pure, i.e. unalloyed, magnesium containing minor quantities of impurities or as alloyed magnesium with alloying elements such as aluminium and zinc added. |
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Worth mentioning in this context are, for example, optimized heat treatment after rolling or alloying with special elements to reduce the size of inclusions. |
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In this process, employed for casting steels that contain easily oxidized alloying elements, a consumable electrode made of forged steel or of compacted powder or sponge is continuously melted by an arc under vacuum. |
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This anisotropic, or distorted, structure makes it difficult for the atoms of alloying metals to substitute for uranium atoms or to occupy spaces between uranium atoms in the crystal lattice. |
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We synthesize new materials using a variety of techniques including sol-gel methods, mechanical alloying, magnetron sputtering and direct solid-state reactions. |
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Hereinto, alloying elements occupy preferable Ti sites near slip planes. |
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In fact, alloying always has thermal effects on steelmaking for example, the use of energy to heat and melt the alloying agents, or the heat of reaction or solution when they combine with other elements. |
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However, the majority of laterite smelters produce a crude ferronickel, which, after refining to remove impurities such as silicon, carbon, and phosphorus, is marketed as an alloying agent in steel manufacture. |
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This alloying affects the properties of the electrodes namely in terms of ignitability, stability and durability, allowing them to be better tailored for specific applications. |
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Cold work steel having high wear resistance for powder metallurgically-manufactured work pieces and tools of high toughness and strength, containing the following alloying elements in wt. |
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Deoxidation is also important before alloying steel with easy oxidizable metals such as chromium, titanium, and vanadium, in order to minimize losses and improve process control. |
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Boron alloying even in small quantities significiantly increases the hardenability of steel, allowing lower contents of carbon and other alloying elements. |
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Certain exemptions apply, inter alia, to the use of mercury in compact and straight fluorescent lamps, as well as to the use of lead in different types of solders and as an alloying element. |
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The content of the heavy metals of concern in the emitted dust depends on the composition of the raw materials and the types of alloying metals added in steelmaking. |
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Blue gold can be made by alloying with iron, and purple gold can be made by alloying with aluminium. |
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If the alloying metal is sufficiently reductive, plutonium can be added in the form of oxides or halides. |
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Since pure iron is quite soft, it is most commonly combined with alloying elements to make steel. |
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Cast iron's properties are changed by adding various alloying elements, or alloyants. |
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The temperature required to anneal a particular steel depends on the type of annealing to be achieved and the alloying constituents. |
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Stage II captures metal production, including the smelting, refining, rolling, extruding, alloying and casting of primary metals such as copper, nickel, aluminum and steel. |
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On the other hand, by alloying catalysts with other materials, sintering can be reduced. |
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Ferrosilicon is primarily used as a deoxidizing and alloying agent in the steel manufacturing process. |
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The change of the minimum cooling rate to prevent the formation of pearlite was linked to the content of the main alloying elements. |
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This is the ideal mill for mechanical activation and alloying. |
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The alloying process results in a loss of homogeneity, the new material containing different phases or intermetallic particles and inclusions, and is more susceptible to localized corrosion. |
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As clad material steel grades with higher carbon contents for hardening with good wear resistant properties and depending on the alloying content simultaneously good properties against corrosion are used. |
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It is the interaction of the allotropes of iron with the alloying elements, primarily carbon, that gives steel and cast iron their range of unique properties. |
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Annealing time depends mostly on carbon content and also on the amount of alloying elements which decrease carbon infusibility in ferrite or stabilise cementite. |
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Tin bronze was superior to arsenic bronze in that the alloying process could be more easily controlled, and the resulting alloy was stronger and easier to cast. |
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Other alloying agents, manganese, chromium, molybdenum, titanium and vanadium counteracts silicon, promotes the retention of carbon, and the formation of those carbides. |
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In this article for additional alloying scandium and chromium are selected on the basis of analysis of diagrams of state of aluminium alloys and literature data. |
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It is now possible to buy an XRF analyzer, which safely shoots X-rays into the metal being tested and, from the returning signal, determines the alloying elements present. |
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Huntsman was one of the first to begin experimenting with the addition of alloying agents like manganese to help remove impurities such as oxygen from the steel. |
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