JPS58163858U

JPS58163858U - Crevice corrosion test equipment

Info

Publication number: JPS58163858U
Application number: JP6154782U
Authority: JP
Inventors: 孝雄鶴田
Original assignee: 三菱重工業株式会社
Priority date: 1982-04-27
Filing date: 1982-04-27
Publication date: 1983-10-31

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は隙間反応の模式図、第２図は鉄−水系の電位−
ＰＨ図、第３図は従来の隙間腐食試験片及び試験方法を
示す模式図、第４図は本考案の第１実施例としての断面
模式図、第５図は本考案の第２実施例としての断面模式
図、第６図は本考案の第３実施例としての隙間近傍断面
の拡大模式図、第７図は本考案の第４実施例としての隙
間近傍断面の拡大模式図、第８図は３００°Ｃにおける
ステンレス鋼の５ＵＳ３０４鋭緻化熱処理材の電位−Ｐ
Ｈ図。１・・・隙間内容器、２・・・隙間内試験液、３・・・
隙間性試験液、４・・・隙間外容器、５・・・導管、６
・・・隙間、９・・・電極、１０・・・測定装置。３勇５閃、′　　　ノ　　　　ｌ和国　　− １，８ＷＪFigure 1 is a schematic diagram of the gap reaction, Figure 2 is the potential of the iron-water system.
PH diagram, Fig. 3 is a schematic diagram showing a conventional crevice corrosion test piece and test method, Fig. 4 is a cross-sectional schematic diagram as the first embodiment of the present invention, and Fig. 5 is a schematic diagram as the second embodiment of the present invention. FIG. 6 is an enlarged schematic diagram of a cross section near the gap as a third embodiment of the present invention, FIG. 7 is an enlarged schematic diagram of a cross section near the gap as a fourth embodiment of the present invention, and FIG. is the potential of stainless steel 5US304 sharpened heat treated material at 300°C -P
Figure H. 1... Container in the gap, 2... Test liquid in the gap, 3...
Gap property test liquid, 4... Container outside the gap, 5... Conduit, 6
... Gap, 9... Electrode, 10... Measuring device. 3 Yuu 5sen,' no l Wakuni - 1,8WJ

Claims

[Scope of utility model registration request]

A first hole that simulates a gap space in a crevice corrosion test device that tests the corrosion situation in a gap opened on the surface of a member;
A second hole made of a test material communicating with the first hole, a sensor built in the second hole for measuring a process amount, and a measuring means connected to the sensor. Crevice corrosion test equipment.