Write on Alloys regarding : (i) What is alloys? (ii) Constituents of alloy (iii) Preparation of alloys (iv) Uses of alloys (v) To increase tensile strength (vi) To resist corrosion Please answer this I will mark you as brainlist
Answers
1) An alloy is a combination of metals or metals combined with one or more other elements. For example, combining the metallic elements gold and copper produces red gold, gold and silver becomes white gold, and silver combied with copper produces sterling silver
2) The components of alloys are ordinarily themselves metals, though carbon, a nonmetal, is an essential constituent of steel. Alloys are usually produced by melting the mixture of ingredients
3) The majority of alloys are prepared by mixing metals in the molten state; then the mixture is poured into metal or sand moulds and allowed to solidify. Generally the major ingredient is melted first; then the others are added to it and should completely dissolve.
4) Uses of Alloys in Daily Life
Alloying elements addition for specific design and materials can often be accomplished without major reductions in the attributes associated with pure metals, like conductivity, ductility and resistance against corrosion.
If two or more metals are mixed in the liquid state to produce a final solution the resulting alloy is called a binary alloy. In case of superalloys where the utility could be within microwave cooker or baking oven as many as ten alloying elements may be used to obtain the desired performance.
The use of alloy in daily life is now irrevocable and if the good factors like high tensile strength, hardness are taken into consideration then materials like gas burners, microwave utility vessels, modern-day pressure cooker, pressure valve, washing machine tub, grinder blades, and other simple daily use materials like vehicular parts of bikes and cars etc are produced.
The metals nickel and copper completely dissolve into each other in a liquid state and retain their complete solubility in each other on freezing to form a series of alloys.
When one type of metal is alloyed with another kind either substitutional or interstitial solid solution are usually formed. Substituted solid based solutions are considered for those where the atoms of both solute and solvent are of nearly the same size and the solute atoms simply substitute for atoms of solvents on the crystalline lattice.
Interstitial solid solutions are those in which the solute atoms are found to be much smaller and fit within the spaces between the existing solvent atoms in the crystalline structure.
The only solute atoms small enough to fit in the interstices of metal crystals are hydrogen, nitrogen, carbon and boron
MARK ME BRAINLIEST AND FOLLOW ME
Answer:
1 An alloy is a combination of metals or metals combined with one or more other elements. For example, combining the metallic elements gold and copper produces red gold, gold and silver becomes white gold, and silver combined with copper produces sterling silver.
2 Alloy, metallic substance composed of two or more elements, as either a compound or a solution. The components of alloys are ordinarily themselves metals, though carbon, a nonmetal, is an essential constituent of steel. Alloys are usually produced by melting the mixture of ingredients.
3 The majority of alloys are prepared by mixing metals in the molten state; then the mixture is poured into metal or sand moulds and allowed to solidify. Generally the major ingredient is melted first; then the others are added to it and should completely dissolve.
4 Bell metal Cu + Sn For casting bells and statues.
Stainless steel Fe + Cr + Ni + C For making utensils and surgical cutlery.
Nickel steel Fe + Ni For making electrical wire, automobile parts.
5 All the alloys can be strengthened by cold working processes such as cold rolling or wire drawing. Except for the 1xxx alloys, additional strength can be obtained by solid solution strengthening, dispersion strengthening, and precipitation strengthening.
6 We've seen that alloys can be created to increase a metal's resistance to corrosion. The traditional method used to prevent corrosion was to cover the metal with a surface coating, such as polymer. This creates a barrier between the surface of the metal and the elements.