Liquid impact test piece capable of generating jet leading edge and test method

The invention provides a liquid impact test piece capable of generating a jet leading edge. The liquid impact test piece comprises a to-be-tested material main body and a shielding screen, wherein a Z-shaped structure is formed by two adjacent surfaces on the shielding screen and one surface of the to-be-tested material main body. The invention also provides a liquid impact test piece capable of generating a jet leading edge. The jet leading edge is generated by using the jet through the edge of the shielding screen, so as to obtain the effect that the jet leading edge impacts the surface of the to-be-tested material main body. Erosion effects of liquid-solid impact at different angles are obtained by adjusting the mounting angle of the test piece. Compared with the traditional test piece, the effect of imitating the impact of the jet leading edge accords with the reality, the test result can disclose the mechanism of destroy generated by liquid-solid high-speed impact, and the liquid impact test piece has the characteristics of being simple in structure and easy to carry out.