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WhatsApp: +86 18221755073The strip was then cold rolled with a 30 % reduction after air cooling to room temperature. Finally, the cold-rolled sheets were respectively annealed at 400 °C, 600 °C, 650 °C, 700 °C, 720 °C, 750 °C and 800 °C for 1 h and water-quenched. ... Carbide identification processed images annealing from 600 °C to 750 °C are shown in Fig. 6 ...
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WhatsApp: +86 18221755073The final formed carbide is shown in Figure 3 shows, There are two main types of carbides in 20MnCr5 after new heat treatment process at 0.3 mm below the surface. The first is the larger carbide generated along the grain boundary, having an irregular shape and a size usually about 0.5–5 μm.
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WhatsApp: +86 18221755073The precipitation, growth, and transformation of carbides rich in Cr and Mo during solidification and cooling process of high-alloy steel for cold working dies are investigated. The Fe–C pseudobina... Skip to Article Content ... The results show that the characteristic temperatures for phase transformation and carbide precipitation are 1380 ...
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WhatsApp: +86 18221755073The M 2 C carbide is usually in plate-like or rod-like morphology mainly depending on cooling rates, while the M 6 C carbide is in fishbone-like morphology and is always much coarser than the M 2 ...
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WhatsApp: +86 18221755073Silicon carbide is changing power electronics; it is enabling massive car electrification owing to its far more efficient operation with respect to mainstream silicon in a large variety of energy conversion systems like the main traction inverter of an electric vehicle (EV). Its superior performance depends upon unique properties such as lower …
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WhatsApp: +86 18221755073After a long running-in period (about 23 min), the COF of the coating stabilizes at around 0.4. However, after remaining stable for a period, the COF began to rise before returning to its original value. This phenomenon may be attributed to the entry of broken fragments of tungsten carbide particles into the interface between the sliding surfaces.
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WhatsApp: +86 18221755073Specific Energy and G ratio of Grinding Cemented Carbide under Different Cooling and Lubrication Conditions Wentao Wu1 & Changhe Li1 & Min Yang1 & Yanbin Zhang1 & Dongzhou Jia2 & Yali Hou1 & Runze Li3 ... search on a high-speed grinding process with cemented car-bide. A water-based grinding fluid was selected to measure grinding force …
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