martensite वाक्य
उदाहरण वाक्य
मोबाइल
- The steel becomes more brittle ( martensite ) which leads to cavities forming in the wheel.
- Martempering is used to produce martensite without developing the high stresses that usually accompany its formation.
- By applying strain, the austenite undergoes a phase transition to martensite without the addition of heat.
- When the edge cools fast a diffusionless transformation occurs, turning the austenite into very hard martensite.
- For steel greater than 1 % carbon it will form a plate like structure called plate martensite.
- However, greater undercooling by rapid quenching results in formation of martensite or bainite instead of pearlite.
- Under a light microscope, the microstructure of bainite appears darker than martensite due to its low reflectivity.
- Shape memory alloys also have surprising mechanical properties, that were eventually explained by an analogy to martensite.
- Martensite is a highly strained and stressed, supersaturated form of carbon and iron and is exceedingly hard but brittle.
- In the third stage, ?-carbon precipitates into cementite, and the carbon content in the martensite decreases.
- The martensite transformation being a diffusionless shear transformation is represented by a straight line to signify the martensite start temperature.
- The martensite transformation being a diffusionless shear transformation is represented by a straight line to signify the martensite start temperature.
- Rapid cooling, on the other hand, does not allow time for this separation and creates hard and brittle martensite.
- The steel can then be tempered by reheating to a temperature in between, changing the proportions of pearlite and martensite.
- This is due to the fact that the steel will change from the austenite phase to the martensite phase after quenching.
- The temperature range for transformation of austenite to bainite ( 250 550 �C ) is between those for pearlite and martensite.
- When cooled very quickly, during a martensite transformation, the austenite grain-size directly affects the martensitic grain-size.
- Most often, these are then cooled very quickly to produce a martensite transformation, putting the solution into a supersaturated state.
- For steel 0-0.6 % carbon the martensite has the appearance of lath, and is called lath martensite.
- For steel 0-0.6 % carbon the martensite has the appearance of lath, and is called lath martensite.
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