Jfe Steel Corporation

Masataka Omoda

Daisuke Mizuno

Shinji Otsuka

Toshiyuki Hoshino

Kazuhiro Nakatsuji

Yusuke Yoshinari

A corrosion sensor is an electric resistance type corrosion sensor including a sensor portion exposed to an arbitrary environment and formed of an electric conductor, and a reference portion isolated from the arbitrary environment and formed of an electric conductor, and measuring a corrosion loss of the sensor portion based on an electric resistance value of the reference portion and an electric resistance value of the sensor portion. A width of the sensor portion is set to satisfy Formula (II): w≥(32×t) . . . (II), t: maximum corrosion loss to be measured [mm], and w: width of the sensor portion [mm].

Corrosion sensor designing method, corrosion sensor manufacturing method, and corrosion sensor

A method of predicting a corrosion loss of a metal material, the method including: inputting a prediction request point including a use period of the metal material for which a corrosion loss is desired to be predicted and second environmental parameters indicating a use environment of the metal material in the use period; calculating a similarity degree between first environmental parameters in corrosion loss data and the second environmental parameters in the prediction request point; dimensionally reducing the first environmental parameters in the corrosion loss data to a latent variable taking the similarity degree into consideration; and predicting a corrosion loss of the metal material for the prediction request point based on a prediction expression constructed using the latent variable and the similarity degree.

Method for predicting corrosion loss of metal material, method for selecting metal material, and device for predicting corrosion loss of metal material

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Tokyo, Japan

Masataka Omoda