Researches upon cavitation erosion behavior of some duplex steels

International Conference on Applied Sciences 2015

Bordeasu, I.^1 ; Popoviciu, M.O.^2 ; Mitelea, I.^1 ; Micu, L.M.^1 ; Bordeasu, C.^1 ; Ghera, C.^1 ; Iosif, A.^3

Politehnica University of Timisoara, Faculty of Mechanical Engineering, Mihai Viteazul Street, Nr. 1, Timisoara

300222, Romania^1

Academy of Romanian Scientists, Mihai Viteazul Street, Nr. 1, Timisoara

300222, Romania^2

Politehnica University of Timisoara, Faculty of Civil Engineering, Traian Lalescu Street, Nr. 2, Timisoara

300223, Romania^3

关键词: Cavitation erosion resistance;    Chemical compositions;    Cumulative effects;    Duplex steels;    Duplex structures;    Erosion characteristics;    Optimal correlation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/106/1/012032/pdf
DOI  :  10.1088/1757-899X/106/1/012032

来源: IOP

【 摘 要 】

This paper presents the cavitation erosion behavior of two stainless steels having a duplex structure formed by austenite and ferrite. The conclusions were obtained by using both the cavitation erosion characteristic curves and the pictures of the eroded surfaces obtained with performing optic microscopes. The researches were focused upon the optimal correlation between the cavitation erosion resistance and the rate of the two structural constituents. The tests were done with T2 facility, with ceramic crystals, which integrally respects the ASTM G32-2010 Standard. The obtained results present the cumulative effect upon cavitation erosion of the chemical composition, mechanical properties and the structural constituents. The results of the researches are of importance for the specialists which establishes the composition of the stainless steels used for manufacturing hydraulic machineries or other devices subjected to cavitation erosion.