products are produced depending on the production process. The slag products are mainly marketed in road and civil construction purposes but also in producing refractories. Normally crushed and screened slags are produced simultaneously when recovering alloy. The leachate of slag products is low and performance results are excellent. Slag products successfully replace natural sand and macadam. Generation of waste is essentially reduced. Producing and using slag products are described as BAT-technology
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Assessment 2 – 40580/02 1a) Plain carbon steel is essentially an alloy of iron and carbon which also contains manganese and a variety of residual elements. These residual elements were either present within the raw materials used in the production process e.g. iron ore and scrap steel additions‚ or they were added in the production process for a specific purpose‚ e.g. deoxidization by means of silicon or aluminium. Hence they are called residual elements to distinguish them from alloying
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Like steel‚ it is available in many different grades and compositions. While we usually think of cast iron as being brittle (having low ductility)‚ this is not true of all cast irons‚ as we shall see shortly. Cast iron‚ like steel‚ is an iron-carbon alloy. In composition and structure‚ and in some of its properties‚ it is quite different from steel. While many grades of cast iron can be welded successfully‚ not all cast iron is weldable‚ and welding of any cast iron presents problems not usually encountered
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C‚ with up to 0.4% Mn. Typical uses are in automobile body panels‚ tin plate‚ and wire products. ASTM A217 Gr WC9 alloy Steel Composition Element requirement |C |Mn |Si |P |S |Cr |Ni |Mo |Cu |W | |Minimum |0.130 |0.50 |0.00 |0.000 |0.000 |2.00 |0.00 |0.90 |0.00 |0.00 | |Maximum |0.180 |0.70 |0.60 |0.020 |0.020 |2.50 |0.50 |1.20 |0.30 |0.10 | |Applications of WC9 alloy Used in • Casings of steam turbines‚ compressors‚ gas turbines. • Valves such as Globe Valve body and
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Shelby Brown 8/28/10 Physical and chemical changes lab essay Changes in matter occur every day. There are two types of ways matter can be altered; physically and chemically. Physical changes do not change the composition of the matter while chemical changes occur when one or more substances turn into a completely new substance. Physical changes can be seen through an altering of the substances physical property. A substances physical property is observed and measured without changing
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3.2 (001) surfaces of Co2FeGa 3.2.1. Structure and relaxation To discuss the electronic structure and magnetic properties of the Co2FeGa (001) surface with L21 structure‚ we simulate the (001) surface properties of Co2FeGa full ̶ Heusler alloy‚ we built a slab containing fifteen atomic layers for ideal Co–Co and Fe–Ga terminations and modified Co- termination‚ and in order to avoid the interactions of nearby slabs‚ we added a 15 Å vacuums on top of the all surfaces. We examine three different possible
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direction of movement of electrons Confusion in use of symbols- Is ampere written as A or amp. V=W/Q is often remembered wrongly. In questions where you have to check the resistance from the graph see what is plotted along the x and y axis. Reason why alloys are used to make elements of electric irons and heaters is not because they are insulators. 2. Units 3. 4. Formula Graphs 5. Resistivity 6. Change in resistance If a wire is folded(doubled on it) and made half its length
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▪ Alloyed with other metals ▪ Phonograph needles ▪ Light filaments ▪ Instrument pivots ▪ Electrical contacts 9. Where does the element exist in nature ▪ It is found in nature as an alloy‚ mostly in platinum ores; its alloys with platinum‚ iridium‚ and other platinum group metals. REFERENCES http://en.wikipedia.org/wiki/Osmium http://www.facts-about.org.uk/science-element-osmium.htm http://chemistry.about
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susceptible to corrosion which is why from the moment that any metallic aircraft component is manufactured it is treated to prevent corrosion. Certain elements are often added to base metals by manufacturers in order to create corrosion resistant alloys and metallic components are normally coated with corrosion resistant chemicals and paints before they are sold. Today some airplanes are made of composite materials which are not susceptible to corrosion however these planes have metal components
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all the metals gold is the most malleable and ductile of all metals. A single gram of gold can be beaten into a sheet of 1square meter; a gold leaf can be beaten thin enough to become transparent to the human eye. Gold creates alloys with other metals easily. These alloys can be made in order to modify the hardness‚ and to control melting and boiling points. Gold is a good conductor of electricity and heat as it is a metal. Gold is unaffected by air‚ moisture and is therefore is a good material for
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