upper and lower yield points and the UTS. 9. What is the difference between elastic and plastic deformation? 10. State Pascals principle. Why is it important to hydraulics? 11. What is steel? 12. What is the difference between austenite and ferrite? 13. What is pearlite? 14. What happens to the hardness of steel as the amount of cementite increases? 15. Describe what martensite
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____________ Gas Crucible Induction coil (for heating) Melt Strip (final product) Copper disk 5. As a 10-kg of AISI1040 steel (plain carbon steel with 0.4% carbon) is cooled to 728oC‚ which statement is/are INCORRECT: (a) There is 5.05-kg austenite (); (b) There is 4.95-kg ferrite (); (c) There is a 1.25-kg cementite (Fe3C); (d) The alloy is in a three-phase field of Fe3C; (e) The alloy is 100% solid. (3 points) Your Answer: ____________ 6. An ellipsoid with major axes of 2"‚ 3"
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Lincoln Electric’s CEO Massaro was correct in his assessment that‚ markets in developing countries would grow faster and yield a higher return. This strategy was critical and in alignment with the organization ’s goal to reach 50% foreign sales revenue. As president of Lincoln Asia‚ Mike Gillespie faces a great challenge with his decision to enter the Indonesian market. If Mr. Gillespie does decide to enter Indonesia‚ he must also decide whether to do it alone or through a joint venture‚ and how
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the case hardened steel. Controlling time of carbon diffusion into the austenitic steel and maintaining the carbon content to 0.25% was a major concern since an important microstructure goal during carburisation is a stable‚ uniformly fine-grained austenite. This resulted in improved fatigue resistance and toughness after heat treatment which improved the quality of the produced gears. The performance factor was improved by reducing the downtime of bottleneck operation (Gear tooth cutting) by working
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Inconel is a family of austenite nickel-chromium-based super-alloys which are used for its high strength‚ excellent fabricability (including joining)‚ and outstanding corrosion resistance [21]. According to the literature‚ it was discovered that the welding time‚ welding current
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Laboratory Report Chong You Liang (0300915) Chong You Liang Choon Zhe Shyi Lai Li Yang Ng Yee Kai Table of Contents ABSTRACT 2 1.0 INTRODUCTION
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. SUMMARY OF PROPOSAL Welding is a process used to join metal parts by producing a coalescence‚ called a weld‚ at a joint. Advances in welding technology have opened the way for innovative designs in structures and machinery. Of modern welding processes‚ the greatest number fall under the general classifications of arc welding‚ gas welding and cutting‚ resistance welding‚ and brazing. Tungsten Inert Gas (TIG) welding is one of the arc welding methods. This method is suitable for many kinds
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ON GATING AND RISERING SYSTEM OF S.G. IRON CASTING SUBMITTED BY: AMBRISH DUBEY ROLL NO: 0207 B.TECH‚ FINAL YEAR MANUFACTURING ENGINEERING UNDER THE GUIDANCE OF:- Dr. NANDITA GUPTA ASSISTANT PROFESSOR NIFFT RANCHI NATIONAL INSTITUTE OF FOUNDRY AND FORGE TECHNOLOGY RANCHI-834003
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Steel Making Methods | Advantages | Disadvantages | Basic Oxygen Furnaces | * Very high production rates and low residual element * Does not burn fuel | * Good efficiency requires large amount of pig iron to continue production. * Requires costly filtering process due to high levels of pollutants produced. * High refurbishing costs. * High dependence on blast furnace/coking. | Electric Arc Furnaces | * Minimal emissions/pollution. * Filtering of scrap not necessary. * Easy
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rebars are quenched with pressurized cooling water to cool them. Further cooling using an air-cooling system is done to develop the internal structures of the rebars. Starting from the outermost layer‚ the steel is composed of layers of martensite‚ austenite‚ bainite‚ ferrite‚ and
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