Researches upon cavitation erosion resistance of the austentic stainless steel GX5CRNI 19-10 heat treated

Abstract

The paper presents the experimental results obtained by testing to cavitation erosion the austenitic stainless steel GX5CrNi19-10 in conformity with SR EN 10283/99 [7] after solution treatment followed by nitration. The test facility used is of magnetostrictive type with nickel tube. The tests have been carried out in Timisoara Hydraulic Machinery Laboratory. The results have been compared with those of the steel 40Cr10 with good but not excellent cavitation erosions and with the steels used for hydraulic turbines T07CuMoMnNiCr165-Nb and T09CuMoMnNiCr185-Ti. For comparisons have been used the characteristic cavitation erosion curves [2, 4] and it resulted that GX5CrNi19-10 has excellent cavitation erosion qualities.