Wear Resistant Alloy

There is no absolute linear relationship between hardness and wear resistance. However, metals with lower hardness have relatively poor wear resistance. Therefore, hardness is still an important reference value for judging wear resistance. HRA, HRC and HRB are completely different. There is no conversion formula between each other.

The alloying elements Cr, W, Nb, B and other elements can combine with C to form carbides. The carbides play an important role in the improvement of the wear resistance of material.

Common Cases Of Wear Failure

Abrasive Wear

Abrasive wear exists in every corner of industrial production. Friction between materials, Impact from objects, there is abrasive wear. The laboratory also measures the wear resistance of a material based on abrasive wear.

Cavitation

Although it is common in pumps and valves that are in direct contact with liquid, it is completely the result of mechanical impact. The specific location of cavitation is where the flow rate changes drastically. For example, the interface between the valve and the valve seat contact or the pump part, ship propeller and many more.

Fatigue Wear

Due to the stress of a certain point in the cycle, rolling bearings and gears are prone to fatigue wear. Fatigue wear will cause some micro cracks in the material. Finally, the components will fail.
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