Metalografi Case Study

Metalografi is the discipline to learn all types of microstructures of metals and its alloys and the nonmetals. Nonmetals that are included are polymers, composites and ceramics. In metalografi, the range of structures that can be observed. From large to very small. We can use our eyes for observing the rust, cracks and holes. In addition we can also identify any atoms and dislocations by using electron microscopy and x-ray analysis with the right techniques and accurate. Grain size and shape, porosity, cracks, perpatahan and the process of the second phase can also be observed with the metalografi technique. So the metalografi technique is particularly useful for analysis tools. Metalografi technique can predict the physical and mechanical
So it can be said that this is a method of heat treatment to strengthen the material, shape and improve the ability of the engine from the material. The process of heating and cooling is done on extremes of temperature to get desired results. It is very useful to the manufacturing process, but the heat treatment is not only useful for manufacturing processes but also to improve the quality, performance and characteristics of the product. It contains the process of heat treatment including heating by means of withholding the material at a given temperature so that the phase ferrit and transform into pearlite austenite phase. Heating process is done depends on carbon content contained on the material. If you want to convert the material into austenite phase as a whole until keinti then the time warming up must be added. The speed of the warming also must be controlled so as not to cause gradients between surface with core part which will degrade the quality of the product. Austenite phase is reached after further cooling or quenching is done quickly by using the media of water or oil so that martensite phase or cementit incentives that are hard. After the process is done, subsequent tempering process is done or the reheating temperature under austenisasi so that previous material very brittle, in particular on the process of tempering temperature will increase ketangguhannnya. The process of tempering is done on all carbon steel that has been dikeraska so that it can reduce the kegetasan and can be used on the application being used. In the process of heat treatment process, also known as the process whereby annealling do with warming temperatures and the cooling is done in a furnace so cooling occurs very slowly ketemperatur the room resulting in nature with a toughness and a tenacity that is very high with a