Water-Jet Erosion of Grade-A Ship Steel: Experimental Research | Zendy

Yupeng Cao | Zendy; Yue Zhang | Zendy; Weidong Shi | Zendy; Hua Lü | Zendy; Linwei Tan | Zendy; Yongfei Yang | Zendy

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Water-Jet Erosion of Grade-A Ship Steel: Experimental Research

Author(s) -

Yupeng Cao,

Yue Zhang,

Weidong Shi,

Hua Lü,

Linwei Tan,

Yongfei Yang

Publication year - 2021

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2021/6617685

Subject(s) - water jet , jet (fluid) , erosion , materials science , cementite , scanning electron microscope , metallurgy , pearlite , stress (linguistics) , diffractometer , phase (matter) , microstructure , composite material , geology , mechanics , nozzle , engineering , mechanical engineering , physics , paleontology , austenite , linguistics , philosophy , quantum mechanics

A water-jet erosion test was carried out on grade-A ship steel to study the interaction and erosion mechanism of the water jet on the steel surface. When the water jet impacted, a STSS-1 stress-detection module was used to collect the dynamic strain signal on the rear of the ship’s plate, and a scanning electron microscope, transmission electron microscope, X-ray diffractometer, and other equipment were used to analyze the microstructure and phase of the grade-A ship steel before impact. The surface morphology of the material after impact was studied and analyzed. The impact stress of the water jet on the grade-A steel was an alternating stress, and the jet pressure decayed in the radial direction. The material surface was fatigued under the action of the jet alternating stress. After the water-jet erosion, the central area of the grade-A steel was dominated by an elongated cementite hard phase, and the peripheral area had a pearlite structure. A model for the jet erosion and peeling of grade-A ship steel was established to clarify the mechanism of erosion by the water jet.

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