Kabushiki Kaisha Toshiba

Hideaki Takahashi

Tetsuo Shoji

Kazushige Kimura

Akira Sawada

Kenji Adachi

Keiichi Sasaki

Katsumi Kanehira

Yoko Todo

Tadayoshi Murayama

Masamitsu Muramatsu

Masaaki Ookubo

Kiyoshi Saitoh

Hiromi Imai

A deterioration diagnosis method, wherein the amount of weight loss of a metallic material due to corrosion in atmospheric air for the exposure days is formulated as a function for environmental assessment points which represents a level of a harmfulness of the atmospheric conditions; and the life span of the metallic material is diagnosed based on the corrosion loss calculated from the function.

Deterioration diagnostic method and equipment thereof

In a method of degradation diagnosis according to the present invention, an equipment degradation diagnosis request is input through network from a diagnosis requester and a degradation diagnosis requests handler is selected in accordance with execution condition information of degradation diagnosis specified in respect of at least one degradation diagnosis requests handler and condition information in accordance with which an diagnosis requester requests degradation diagnosis. A request for execution of degradation diagnosis is made to this selected degradation diagnosis requests handler and the results of execution of the degradation diagnosis obtained by the selected degradation diagnosis requests handler are acquired and output through network to the diagnosis requester. In this way, a service can be implemented whereby diagnosis of degradation requested by a diagnosis requester from a diagnostic service provider is performed rapidly and easily at low cost.

Degradation diagnostic method, degradation diagnostic mediation device and degradation diagnostic device and computer-readable recording medium on which a program is recorded

A method of detecting embrittlement of a heat-resisting steel comprises evaluating the brittleness of the heat-resisting steel on the basis of the repassivation current value obtained by (a) connecting the steel as the anode of an anode polarization curve measuring apparatus wherein an aqueous solution containing an organic acid and an alkylbenzene sulfonic acid or its salt is used as an electrolytic solution; and (b) raising the anode potential from an active region to a passive region and thereafter lowering the anode potential to measure the repassivation current value.

Method of detecting embrittlement of heat-resisting steel

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Tokyo, Japan

Kazushige Kimura