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The mechanical properties of cemented carbide are mainly manifested in the following aspects
May 31, 2018

The mechanical properties of cemented carbide are mainly manifested in the following aspects:

1. flexural strength

The flexural strength of the hard alloy is lower than that of the high speed steel, and the bending strength of the YG8 hard alloy with higher bending strength is only about half of the high speed steel. The higher the cobalt content in the hard alloy, the higher the strength of the cobalt. The bending strength of the WC-TiC-Co alloy decreases with the increase of the content of the TiC. In addition to the type of carbide, W The grain size of C also affects the strength of cemented carbide. The bending strength of coarse grain cemented carbide is higher than that of medium grain cemented carbide.

2. compressive strength

The compressive strength of hard alloy is very high, it can be 30%-50% higher than that of high speed steel, which is about 3500-5600MPa. The compressive strength of 6000MPa. hard alloy can reach 6000MPa.. The compressive strength of cobalt content is the largest when the cobalt content is 5%. The compressive strength of fine grain hard alloy is larger than that of coarse grain.YT hard alloy, which is lower than that of YG hard alloy. Gold decreases with the increase of TiC content. Addition of a small amount of TaC, NbC and VC can refine the WC grain and increase the compressive strength.


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