History of Iron and Steel I have researched the origin of hot metal cars for many years. In the very early years of iron production and later steel production historical is sketchy at best. Almost in plant equipment was built on sight and sometimes no drawings were used. The ability of American fabricators in the late 1700 and the 1800 amazes me. A case in point is Otto Mears a German immigrant that built most of the three foot gauge railroads in the Colorado Rockies. He had a third grade education
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IRON (METAL) Iron is a chemical element with the symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. It is the most common element (by mass) forming the planet Earth as a whole‚ forming much of Earth’s outer and inner core. It is the fourth most common element in the Earth’s crust. Iron’s very common presence in rocky planets like Earth is due to its abundant production as a result of fusion in high-mass stars‚ Like other group 8 elements‚ iron
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Ashland County West Holmes Career Center Mrs. Bender 1 Background Iron powder will react with cupric sulfate in a onetoone ratio (1 mole to 1 mole). The students will also be able to more easily visualize the size of a mole of iron and copper. The result obtained in this lab usually have less than a one percent error. Fe(s) + CuSO4 (aq) > FeSO4(aq) + Cu(s) Iron powder cupric sulfate ferrous sulfate copper In the reaction‚ iron will be the limiting reagent; it will be completely used up in the reaction
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PLAN WEEK 5 Dr. Tonjes September 2011 LESSON: Oblique Triangles‚ Laws of Sines and Cosines INTRODUCTION: Student will demonstrate how to apply laws of sines and cosines to oblique triangles. OBJECTIVES: After completing this unit‚ the student will be able to: 6. Use the Law of Sines and the Law of Cosines to solve oblique triangle problems. 6.1. Summarize the Law of Sines. 6.2. Find the area of an oblique triangle using the sine function. 6.3. Judge when an ambiguous case of the Law
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The Iron-Carbon Diagram There are two iron-carbon equilibrium diagrams: - stable iron-graphite Fe-Gr - metastable iron-cementite Fe-Fe3C The stable condition usually takes a very long time to develop. The metastable diagram is of more interest. Fe3C iron carbide called cementite because it is hard. Following phases exist on Fe-Fe3C diagram: - liquid solution of iron and carbon (L) - ferrite ( ) – an interstitial solid solution of carbon in Fe (bcc). At room temperature ferrite is ductile but
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and why are they important? There are three principles or characteristics that any project has. These are time‚ cost and quality. These three are called iron triangle. These are important because they are well known success measure criteria of any project. It places cost‚ time and money at the center of project. This is called Iron Triangle. This framework helps to evaluate and balance the competing demands of cost‚ time and quality within their projects. The quality management of a project provides
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MME 214 Metallography sessional Exp. 2 Microstructure of Wrought Iron Wrought Iron • Wrought iron was once the most important metallic engineering material but it has now been almost totally replaced by the different grades of steel. • A little wrought iron is still made and will probably continue to be made since it possesses certain extremely valuable properties. • Wrought iron is a soft but ductile metal made from pig iron by a low temperature oxidation process called ‘Puddling’. • It is
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------------------------------------------------- Alloy Steel is a metal alloy whose major component is iron‚ with carbon content between 0.02% and 2.14% by mass. An alloy is a metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure‚ while partial solutions give two or more phases that may or may not be homogeneous in distribution‚ depending on thermal (heat treatment) history. Alloys usually have different properties from those
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and even powerful military vessels sail out into calm‚ clear weather……and then just vanish….without a trace (Lexington 1). This is the dreaded Bermuda triangle also referred to as the devil’s triangle (Bermuda Triangle 1). It is located off the southeastern coast of the United States in the Atlantic Ocean. The three points that create the triangle are Miami Florida‚ Bermuda‚ and San Juan Puerto Rico. It covers roughly 500‚000 square miles (Obringer 1). Here‚ off the coast of Florida‚ is a vacation
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Metals and Rusting Iron Alquero Rollon Title “ The Effect of Various Metal Activity (Zinc (Zn)‚ Magnesium (Mg)‚ and Copper (Cu)) in the Color of Rainwater and Amount of Rust in the Iron Nail “ Hypothesis If the type of metal that has the highest activity will be used ‚ then there will be the least amount of rust found in the nail and the color of the rainwater would be the lightest. Independent Variable • Types of metals used in wrapping Title: “ The Effect of Various Metal Activity (Zinc
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