Creep experiment device and method for realizing accurate deformation measurement in dynamic liquid metal environments

The invention discloses a creep experiment device and method for realizing accurate deformation measurement in dynamic liquid metal environments. The experiment device comprises a testing kettle (1), a melting kettle (2), a creep experiment mainframe (3), a corrugated pipe (4), an inverter (5), an extension guide rod (6), a pump (7), a flowmeter (8), an oxygen sensor and oxygen content control module (9), a liquidometer (10), an upper end cover (11) of the testing kettle, a testing machine pull rod (12), a liquid metal discharge pipeline (13), an upper end cover (14) of the melting kettle, a heating furnace (15), a vacuum and gas pipeline (16), a displacement sensor (17), and pipelines and valves connected with the apparatuses. The experiment method disclosed by the invention can accurately measure the deformation of a gauge length segment of a test sample and test the creep properties of a material the liquid metal environments with different flow speeds and different oxygen contents. According to the invention, a sample is convenient to mount and dismount and can be replaced timely and conveniently.