What is an Alloy?
Defination
An alloy is a homogenous mixture of two or more metals or a metal and a non−metal in definite proportion.
An alloy is a material made by combining two or more metallic or non-metallic elements, with the aim of enhancing its properties such as strength, hardness, durability, resistance to corrosion, and other physical and chemical properties.
What is Example of Alloy?
Solution
An alloy is a mixture of two or more metals. Some familiar examples of alloys include brass, bronze, pewter, cast and wrought iron, steel, coin metals, and solder (pronounced SOD-der; a substance used to join other metallic surfaces together). Alloys are usually synthetic materials, developed by scientists for special purposes. They generally have specially desirable properties quite different from the metals from which they are made. As an example, Wood's metal is a mixture of about 50 percent bismuth, 10 percent cadmium, 13 percent tin, and 27 percent lead that melts at 70°C (160°F). This low melting point makes Wood's metal useful as a plug in automatic sprinkler systems. Soon after a fire breaks out, the heat from the flames melts the Wood's metal plug, releasing water from the sprinkler system.What is an alloy? Give two examples with their chemical composition.
Alloys are homogeneous mixtures of two or more metals, or a metal and a non-metal. The metals are mixed in the molten state in a fixed proportion by weight to form an alloy. More than 90% of metals used are in the form of alloys and they cannot be readily separated by physical means. The various purpose in forming an alloy are:
(a) An alloy of a metal increases its hardness.
(b) An alloy of a metal gives it a different color.
(c) Alloys are also made to present corrosion, wear, fatigue and temperature.
(d) Some of the alloys are made to impart magnetic or electrical properties, strength, formability, etc.
Two examples of alloys with their chemical composition are:
Magnalium: It is an alloy containing Aluminum and magnesium (Al,Mg). The percentage composition of magnalium is:
Aluminum (Al):95%
Magnesium (Mg):5%
Brass : It is an alloy of Copper and Zinc (Cu,Zn). The percentage composition of brass is:
Copper (Cu):80%
Zinc (Zn):20%
Alloys are homogeneous mixtures of two or more metals, or a metal and a non-metal. The metals are mixed in the molten state in a fixed proportion by weight to form an alloy. More than 90% of metals used are in the form of alloys and they cannot be readily separated by physical means. The various purpose in forming an alloy are:
(b) An alloy of a metal gives it a different color.
(c) Alloys are also made to present corrosion, wear, fatigue and temperature.
(d) Some of the alloys are made to impart magnetic or electrical properties, strength, formability, etc.
Two examples of alloys with their chemical composition are:
Magnalium: It is an alloy containing Aluminum and magnesium (Al,Mg). The percentage composition of magnalium is:
Aluminum (Al):95%
Magnesium (Mg):5%
Brass : It is an alloy of Copper and Zinc (Cu,Zn). The percentage composition of brass is:
Copper (Cu):80%
Zinc (Zn):20%
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