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[en] The synergistic effect of irradiation and Lead Bismuth Eutectic (LBE) corrosion on structural materials is of vital importance for the research and development of future lead cooled nuclear energy systems. A Heavy Liquid Metal and Irradiation Facility (HLMIF) was therefore designed and constructed at National Laboratory of Heavy ion Accelerator in Lanzhou. The facility provides a capability to use heavy ions in situ to irradiate a specimen in simultaneous contact with flowing LBE. In this experiment, a thin disc of material serves as both a beam window isolating high temperature LBE loop from the accelerator, and as a specimen irradiated by ions, allowing studying the synergistic effect. The facility has been successfully tested by using 247 MeV Ar ion beam to irradiate a sample of SIMP steel simultaneously exposed to flowing LBE at 350 °C. The initial experiment was continuously conducted for 92h without any accident or unexpected failures. The preliminary results showed that the LBE corrosion of SIMP steel was obviously accelerated by ion irradiation even at low damage.