BSc INDUSTRIAL ENGINEERING Materials & Manufacturing Technology Casting Casting is a very important process within the automotive industry and Jaguar. It plays a crucial part in the design and engineering of every vehicle jaguar produces. Casting is used within jaguar for making parts of complex shape that would be difficult or uneconomical to make by other methods‚ such as cutting from solid material. Although there are several different types of casting the principal of the process
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value of 1.7. If‚ after 100 s‚ the reaction is 50% complete‚ how long (total time) will it take the transformation to go to 99% completion? The kinetics of the austenite-to-pearlite transformation obeys the Avrami relationship. Using the fraction transformed–time data given below‚ determine the total time required for 95% of the austenite to transform to pearlite: Q.4 Write down six invariant Binary reactions by showing schematically and with examples Due date: 22 October‚ 2012
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First‚ an overview of the characteristics of SMA is presented. The shape memory effect (SME) and pseudoelasticity‚ two major properties of SMA associated with the thermal-induced or stress-induced reversible hysteretic phase transformation between austenite and martensite‚ are reviewed. These unique properties enable SMA to be used as actuators‚ passive energy dissipators and dampers for civil structure control. This paper then reviews current research using SMA-based devices for passive‚ semi-active
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[pic] AE2009 Aerospace Materials Assignment Report Use of Smart Materials in Aerospace Industry List of Contents 1. Introduction 3 1. Purpose 4 2. Background 4 3. Scope 4 2. Types and Applications of Smart Materials 1. Piezoelectric Material 5 2. Shape Memory Alloys 14 3. Magnetostrictive Materials 20 4. Rheological Fluids 22 3. Discussion 25 4. Conclusion 26 5. References 27 Abstract This report will cover the different types of smart
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floats to the top of the metal‚ forming slag. The slag can then be removed‚ purifying the iron. Ferrous alloys can be broadly classified into 2 groups: 1. Steels (C% is <2.1) 2. Cast iron (C% is >2.1-6.67) Steels have carbon in the combined form (austenite‚ cementite etc.) Cast irons have carbon in the free form as graphite These ferrous alloys are not only iron and carbon
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By: Bahredin Ali Muzeyin Materials Engineering Department Adama Science and Technology University MAEng3301 October 15‚2013 Abstract Deferent carbon content steel examined to determine the microstructure‚ concentration and hardness of the specimens. 0.2% C‚ 0.4% C and 1.0% C steel specimens were prepared by cutting. Abrasive cutter was used to cut the steels. Furnace was used for heat treatment at 900°C to make the phases separate when seen
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Heat Treatment and Qualitative Metallographic Analysis Lab ME 3228: Mechanics & Materials Laboratory Summary Comparing a material’s initial treatment and the microstructures that are formed from different processes‚ an engineer can accurately understand why certain treated materials of the same family can be stronger than another. In this experiment annealed and cold-worked specimens of AISI 1018 STEEL are used‚ along with a Hardness tester‚ a grinding and polishing process‚ and a micrograph
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temperature if higher min scaling and decarburization. 3. Lowers the strength and therefore affects forging process. Over heating. 1. Austenite grains becomes excessively large which impairs physical properties. 2. Boundary oxidation. BURNING 1. An extremely overheated condition that causes more fusible matter of the steel to melt. 2. Usually at the austenite boundary leads to hot shortness. Rate of heating to forging temperature . Time of heating --> centre temperature
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Shape Memory Metal The goal of the experiment was to heat the shape memory alloy to see if the metal will revert back to its original shape. In order to do so I needed a hair dryer with a low and high setting‚ and a shape memory paperclip. How I went to test this was I took the paper clip‚ straightened it out‚ and then heated the paper clip with the blow dryer. In order to obtain accurate results‚ I needed to do four trials with the blow dryer on the high setting‚ and one trial with the blow
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ALLOY STEELS I. A. ALLOYING ELEMENTS Any metallic element added during the making of steel for the purpose of increasing corrosion resistance‚ hardness‚ or strength. The metals used most commonly as alloying elements in stainless steel include chromium‚ nickel‚ and molybdenum. Characteristic of alloying elements Very important elements for alloy steels are manganese‚ nickel‚ chromium‚ molybdenum‚ vanadium‚ tungsten‚ silicon‚ copper‚ cobalt and boron. All commercial steels contain 0‚3-0
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