Grain Size: It is said to be a grain size with the diameter of the grain of granular material. and this is in the shape of irregular polycrystalline metal. in this, there are two structures i.e fine-grained metal and coarse-grained metal Smaller grain structure is called fine metal And larger structure is called coarse grain …
Grain Size and Measurement Methods of Grain Size Read More »
Grain and Grain Boundary: The Poly-Crystalline metals which has different types of shapes called grains. Poly-Crystalline metals are formed by crystals which are form by the transition of liquid to solid. The individual grains which are separated is called grain boundaries. In this, the grains are Regularly packed. This boundary is formed after complete solidification.
Alloys : The general alloys are made by mixing the metals in the molten state and purred into molds and solidify it. and in this, some are melted first and the other ingredient is added to it. to the making of the alloy is difficult at the time of melting process due to different metals …
Homogeneous and Heterogeneous Nucleation: Homogeneous: In this nucleation process, the nuclei process takes place at pure liquid metal and this grows up to solidification completes.
Direct solidification: It is known that the process occurs in a particular direction. In this to supply the liquid metal throughout freezing the feeder heads are used to design to solidify after a long time.
Master Alloy: The master alloy purpose is mainly to obtain certain chemical reaction or to get a chemical composition by adding the alloy or some of the mixtures of elements to a metal bath is known as the master alloy. This is also known as an alloy in which one or more elements added in …
About the Master Alloy and Characteristics of Master Alloy Read More »
The Difference between Pure Metal and Alloy is explained as follows: Pure metal: This metal has single phase materials that can form readily to a metallic bond which is done by composing of elements. Eg: Aluminium, copper etc… Due to the poor mechanical and physical properties, they are rarely used for engineering applications. These metals …
Vapour Compression system: Vapour Compression System consist of Compressor, Condenser, Receiver, Expansion valve and Evaporator. In this type of system it consist of four processes. Compression process [1-2] Condensation process [2-3] Expansion Process [3-4] Evaporation process [4-1]
First Law of Thermodynamics In this, it states that both heat and work are mutually convertible. this is also said to be that when the heat is supplied to a system should equal to network done by it. When there is both heat and work is transferred then the net energy stored in the system …
Internal Energy: The energy which is from the molecular arrangement and the motion of molecules, by this the energy is possessed in the boundaries of the system. This is also a type of stored energy. This type of energy does not depend on pressure and volume and it is a function of temperature. When the …