抄録
The corrosion tests on iron-nickel alloys were carried out in malefic acid solution and the results obtained were summarized as follows:
(1) The polarization for anodic dissolution of active alloys became larger as nickel content increased.
(2) The rise of temperature increased remarkably the anodic dissolution and the corrosion weight loss.
(3) The natural electrode potential of the α phase alloys containing less than 30% Ni was found to be about 0.1V less noble than that of the γ phase alloys containing more than 30% Ni in maleic acid solution.
(4) Two stages were distinguished in the polarization of the alloys containing less than 30% Ni: the first is the dissolution of the α phase and the second is the dissolution of the γ phase.
(5) The formation of the order lattice (FeNi3) in the alloys was not always to increase the corrosion resistance of the alloys.
