The corrosion of heated 80: 29 nickel-chromium at temperatures between 950 and 1250° is accompanied by emission of submicron particles. These particles are composed of chromium in the form of an oxide. Evidence is presented using neutron activation techniques that between 46 and 68% of the emitted chromium is in the form of chromium trioxide. The rates of emission of chromium at different temperatures over comparatlvely short periods of time have also been measured using the same technique.
It is suggested that studIes of the matenal emitted may be a neglected source of information about corrosion processe.
SmithellsC. J., WilliamsS. V., & AveryJ. W., J. Inst. Met., 1928, 40, 269
3.
FlintO., private communication, 1965
4.
LewisH., ‘The Kinetics of Oxidation Process in Nickel-chromium base Alloys’, Joumées Int. d'Études sur l'Oxidation des Metaux, 6–8Oct., 1965 (Bruxelles: S.E.R.A.I.)
5.
MegawW. J., & WiffenR. D., ‘Aerosols: Physical Chemistry and Applications’ Proc. 1st Nat. Con!. on Aerosols. (Czech. Acad. Sci.), 1962, (published 1964) p. 511
