A study on the corrosion behavior of nickel in ClF3 gas

[Display omitted] •The kinetic corrosion behavior of Ni metal in ClF3 changed markedly at the point of 823 K.•The corrosion material was confirmed as NiF2 using XRD and XPS results.•The recommended maximum temperature to use Ni in 0.1 MPa ClF3 gas was estimated to be 748 K. The reaction mechanism between 0.1 MPa ClF3 gas and Ni was investigated in the temperature range of 473–873 K for 0–120 h. The kinetic corrosion behavior of Ni metal under 0.1 MPa ClF3 gas changed markedly at the point of 823 K. The reaction temperature is the most important factor in the corrosion behavior of metals with oxidative gas. As a result, the recommended maximum temperature to use Ni in 0.1 MPa ClF3 gas was estimated to be 748 K.