Acta Metall Sin  1991, Vol. 27 Issue (2): 124-128    DOI:

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STRESS CORROSION CRACKING OF 304 STAINLESS STEEL IN HIGH TEMPERATURE WATER

YANG Wu;ZHANG Meijie;ZHAO Guozhen Shanghai Research Institute of Materials; J. CONGLETON University of Newcastle upon Tyne; England

YANG Wu;ZHANG Meijie;ZHAO Guozhen Shanghai Research Institute of Materials; J. CONGLETON University of Newcastle upon Tyne; England. STRESS CORROSION CRACKING OF 304 STAINLESS STEEL IN HIGH TEMPERATURE WATER. Acta Metall Sin, 1991, 27(2): 124-128.

Abstract References Related Articles Recommended Metrics Download:  PDF(481KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The correlation of the surface films with the effects of temperature,Cl~- concentration and dissolved oxygen content on the SCC susceptibility of type304 stainless steel in high temperature water was studied with the aid of U-bendSCC testing and electrochemical measurement as well as AES analysis. With increas-ing temperature, the decreased susceptibility to SCC in air-saturated water contain-ing 100 ppm Cl~- was related to the increase in Cr-enrichment degree in the surfacefilm and to the thickening of the Cr-enriched oxide layer. The increase in SCC sus-ceptibility with increasing Cl~- was attributed to the reduction of Cr content inthe oxide film and to the decrease in thickness of the Cr-enriched layer. Lower SCCsusceptibility observed at both high and very low dissolved oxygen levels could notsimply be related to the change in composition and thickness of oxide films andmight be explained by the electrochemical behaviour of Cr and Fe. The role of oxi-de films in initiation and propagation of SCC is discussed. Key words:  stress corrosion cracking      high temperature water      film-rupture mechanism      oxide film      repassivation      Received:  18 February 1991      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1991/V27/I2/124 1 平冈秀朗,黛正己,黑沢辰雄,防食技术,1982;31:517 2 石原只雄,大桥重雄.防食技术,1983;32:324 3 Hirano H, Aoki N, Kurosawa T. Corrosion. 1983; 39: 313 4 平山秀雄,山科泰之,中村新一,川久保隆,菱田护.防食技术,1985;34:86 5 陈家福,相马才晃,松田史朗,杉本克久.防食技术,1989;38:203 6 Indjg M E, Mcllree A R. Corrosion, 1979; 35: 288 7 Andresen P A, Indig M E. 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