the resistance in the electrical current described above is no longer zero. The main benefit of quenching workpieces after heat treatment is the reduced effect it has on the workpiece’s microstructure, which can be more severe if it undergoes a slower cooling process. Quenching is about trade-offs, and while the chemistry behind quenching can be complicated, getting the process right ensures parts will perform as designed. Share. Quenching the arc refers to the stoppage of the arc and/or metal transfer. After quenching in water, the material is the hardest it can get given the chemistry. Quenching definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Although hard, the material is extremely brittle and subject to cracking. Quenching is the process of rapid cooling after heat treatment of a workpiece, while tempering is a process that involves heat treating to increase the toughness of iron-based alloys. Metallurgists at Paulo understand the trade-offs that come with making quenching decisions and can help you find the best heat treating solutions for your parts. Quench definition, to slake, satisfy, or allay (thirst, desires, passion, etc.). Minimizing the current will prolong the life of the contacts. Discussion. Tweet. Quenching also increases toughness of both alloys and plastics. If you are having to break high voltages care must be advised to minimize the amount of current flowing at the time of contact opening to minimize the metal transfer. A quench refers to the sudden loss of superconductivity when its temperature is raised. In the superconducting state, the resistance of the magnet coil windings is zero and hence no energy is required to maintain current flow. The quenching method is commonly applied to steel objects, to which it imparts hardness. Quenching is usually undertaken to maintain mechanical properties associated with a crystalline structure or phase distribution that would be lost upon slow cooling. The quenching media available can be water, air, oil, or brine. Martensite is … Look it up now! See more. Quenching is a metal heat treatment technology in which a metal workpiece is heated to a suitable temperature for a period of time and then immersed in a quenching medium for rapid cooling. So, the key difference between quenching and tempering is that quenching is the rapid cooling of a workpiece, whereas tempering is heat-treating a workpiece. Since oil quenching is a less violent technique than water quenching, the chance of producing internal stresses, distortion, or cracking is reduced. Brine, water, mineral oil, air, and the like are the commonly used quenching media. 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