EFFECTS OF CORROSION • ELECTROCHEMICAL EFFECTS • FACTORS AFFECTING CORROSION • THE RUSTING OF IRON • IDENTIFYING ANODES & CATHODES • DIAGRAMMATIC SUMMARY • DIFFERENTIAL AERATION • DIFFERENT METALS IN CONTACT • CORROSION PROTECTION • THE CORROSION OF ALUMINIUM • THEORY SUMMARY • REVISION TEST • REVISION TEST ANSWERS 2 3 4 5 6 7 7 8 9-10 11-12 13-16 17 18 19-20 21 © JAK CHEMISTRY LEVEL 3C (CHM 315109) CORROSION (CRITERION 5) INTRODUCTION: Corrosion is a general term referring to the DESTRUCTIVE
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MME 3210 Materials Processing Techniques Laboratory Assignment – Sand Casting of an Aluminium 13wt% Silicon Alloy 1) Process Attributes Waste shown yellow* Waste shown yellow* After taking part in the sand casting laboratory session it was made clear that the process possessed many advantages and disadvantage‚ both from the process itself and from the final part produced. Observing the process step by step it was noted that the tasks carried out by the operator were not very difficult
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Origins of the Name The word‚ Aluminium originates from the ancient Latin word for alum‚ alumen‚ which is potassium aluminum sulfate‚ meaning “bitter salt”. We pronounce the element of aluminium’s name as follows‚ al-yuh-min-ee-uhm‚ which conforms to the IUPAC pronunciation of the word‚ with the regular ‘ium’ ending of majority of the elements of the periodic table. The History Aluminium was first discovered in 1825‚ by early discoverer‚ Hans Christian Oersted in Denmark. Before this time‚ alum
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are two key reasons for using thermoplastic composites: * save time & handling costs in production * eliminate labour-intensive riveting & bonding * can produce large profile sections that are some 20 % lighter than metal & alloys. * materials are exceptionally stiff and can tolerate vibrations A380 (largest passenger plane) - 25 % of the structure & components are composites. And in the next generation of aircraft‚ the content of composites will double. A350
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Chemistry: Research task 1 5.1- define the terms mineral and ore with reference to economic and non-economic deposits of natural resources The term ‘ore minerals’ is commonly referred to as economic minerals Mineral: naturally occurring compounds. Rocks are mixtures of various minerals. Most minerals are lattice structures‚ both ionic and covalent. Economic minerals have been divided into two main categories: Metalliferous minerals- mined to extract a metal Industrial mineral- either has
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etc. they are also used in transportation such as cars‚ buses‚ trucks‚ trains. Computers and electronic devices are also made up of metals. Electrical power production and distribution‚ even most of the construction is made out of steel which is an alloy; a mixture of metals such as iron and carbon. And it is because of the specific properties of metals‚ which allow them to be used in the making of such objects. Although we see metals almost everywhere we go‚ metals are not found easily. In fact‚
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required Selected material: Carbon fibre Introduction Advantages and disadvantages compared to other materials Sustainability issues Processing technique Selection 2: Baseball bat Brief description Properties required Selected material: Aluminium Introduction Advantages and disadvantages compared to other materials Sustainability issues Processing technique Sports and recreation equipment selection Selection 1: Bicycle frame Brief description Bicycle frame is the core part
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of 7075 alloy The present study reports the effect of cold working on bending and tensile behavior of Brass‚ Copper‚ Aluminium. A series of experiments involving cold rolling (58% cold work) have been conducted for those three materials. The Vickers number of hardness for cold rolled specimens can be show very clearly that it has increasing up the number itself likewise the number of thickness reduction which also increasing. Which its number of Vickers can be rated as follow as Aluminium < Copper
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What are mineral resources? Mineral resources are the natural resources which cannot be renewed. Examples of mineral resources Gold Salt Tin Limestone Iron ore Coal Iron Manganese Rubber Aluminium Marbles They are also used to produce useful things. Some of these useful things are: Soap Jewelleries e.g. chain bracelet e.t.c. Batteries And so on NAMES OF MINERAL RESOURCES‚ WHERE IT IS FOUND AND ITS USES. Limestone: Limestone is a sedimentary
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(GoI) struck its first |[pic][pic] | |disinvestment deal in the fiscal 2000-01. It approved the sale of its 51% | | |stake in aluminium major‚ Bharat Aluminium Co Ltd (Balco) to Sterlite | | |Industries Ltd. (SIL)‚ for Rs. 551.5 crores. Balco was a profit making public| | |sector company
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