Keywords: self-welding susceptibility, flowing sodium, chromium plating, 225Cr-1Mo steel, Inconel 82 weld metal, susceptibility evaluation, contact stress, diffusion welding, adhesion welding, India, fast breeder reactors, protoype FBR, PFBR, diverse safety rods, DSR drive mechanism, DSRDM, electromagnets, nuclear energy, nuclear power, nuclear technology
In-sodium self-welding susceptibility evaluation of chromium-plated 2.25Cr-1Mo steel with Inconel 82 weld metal
The self-welding susceptibility of Cr-plated 2.25Cr-1Mo steel with Inconel 82 weld metal, with and without Cr-plating, has been evaluated in flowing sodium at 823 K for three and six months under contact stress of 3.0 MPa. Tests were performed on flat-on-flat geometry of hollow cylindrical specimens under compression. No self-welding was observed in either test for either material combination. Scanning electron micrographs of the tested specimens showed no damage in the surface. The paper discusses the experimental set-up and the results of self-welding susceptibility studies on these material combinations.