Strategic Study of CAE >> 2003, Volume 5, Issue 7
The Theorem of the Resistance of Hydraulic Machine's Materials to Cavitation Erosion and Abrasion
Scientific and Technological University of Kunming, Kunming 650051, China
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Abstract
In order to confirm the dependence of the resistance of cavitation erosion and abrasion (CEA) on the common properties of materials, four typical materials (WC coating, NiCr alloy coating, boron stainless steel and titanium) were used to do the experiments of CEA and cavitation erosion (CE), to do corrosive experiment, and to test their hardnesses. The experiments results indicated that all resistance to CEA and resistance to CE depend on the hardness and the corrosive resistance of materials. The high hardness is the first factor of good resistance to CEA, strong corrosive resistance is the second factor. Meanwhile, the strong corrosive resistance is the first factor of good resistance to CE, high hardness is the second factor.
Keywords
hydraulic machine´ ; s materials ; cavitation erosion and abrasion ; theorem
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