Cavitation strengthening of curved blades with submerged waterjet: A preliminary experimental investigation

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Kang, Can^1 ; Opare, Wisdom^1 ; Liu, Mengyao^1 ; Liu, Haixia^2

School of Energy and Power Engineering, Jiangsu University, Zhenjiang, China^1

School of Material Science and Engineering, Jiangsu University, Zhenjiang, China^2

关键词: Cavitation impacts;    Curved surfaces;    Experimental investigations;    Impeller blades;    Industrial use;    Optimal controls;    Primary factors;    Strengthening model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/2/022033/pdf
DOI  :  10.1088/1757-899X/322/2/022033

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Cavitation strengthening is usually implemented on flat specimen surface and relevant conclusions are difficult to be extended to curved blades. In the present work, cavitation strengthening for the curved surface is treated. A systematic consideration covering primary factors behind cavitation strengthening is substantiated in curved impeller blades. The submerged waterjet is used to trigger cavitation and then the cavitation impact on the impeller blades is produced. Apart from the attempt to construct a cavitating waterjet rig for strengthening model blades, the approaches of evaluating cavitation strengthening intensity are presented as well. The correlation between the results obtained in both the laboratory level and practice is established. The possibility of implementing the strategies for industrial use is validated. It is anticipated to provide a reference for the optimal control of cavitation strengthening for the curved surface.