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Digitale Medien

LIFE PREDICTION OF 316 STAINLESS STEEL UNDER CREEP-FATIGUE LOADING (1987)

Yagi, K. ; Kanemaru, O. ; Kubo, K. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Fatigue & fracture of engineering materials & structures 9 (1987), S. 0

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ISSN: 1460-2695

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Maschinenbau

Notizen: Life prediction for creep-fatigue loading conditions should be related to creep damage mechanisms. In order to examine the effect of the creep damage mode on rupture life under creep-fatigue loading, a “combined creep-fatigue loading test” was carried out on 316 stainless steel. In this method, creep loading and fatigue loading are repeated alternately. The fracture criteria under combined loading closely depend on the creep fracture modes of the static creep test. A new life prediction method which uses this new fracture criterion is proposed. The criteria are changed when the creep damage mode varies. In order to verify the adequacy of this method, fatigue tests with a tensile strain-hold wave form were carried out. It is clear that rupture life in such fatigue tests is dependent on the chosen fracture criteria.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1460-2695.1987.tb00467.x

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Digitale Medien

Reflection electron microscopy (1987)

Yagi, K.

Copenhagen : International Union of Crystallography (IUCr)

Applied crystallography online 20 (1987), S. 147-160

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ISSN: 1600-5767

Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Thema: Geologie und Paläontologie , Physik

Notizen: Reflection electron microscopy (REM) in ultra-high vacuum (UHV) conditions is reviewed. UHV-REM can characterize surface structures of monolayer levels such as steps, domains of reconstructed surface structures and their boundaries and these capabilities are used to observe surface dynamic processes such as phase transitions of reconstructed surface structures and adsorbate structures and adsorption processes, oxidations, sublimations and ion-sputtering and annealing. The method is compared with other surface-imaging techniques.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1107/S0021889887086916

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Digitale Medien

Lipid peroxidation caused by chinoform-ferric chelate in cultured neural retinal cells (1985)

Yagi, K. ; Ohtsuka, K. ; Ohishi, N.

Springer

Cellular and molecular life sciences 41 (1985), S. 1561-1563

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ISSN: 1420-9071

Schlagwort(e): Lipid peroxidation ; chinoform-ferric chelate ; chick neural retinal cells

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary Incorporation of chinoform-ferric chelate was demonstrable in cultured neural retinal cells of chick embryos after 1 h of incubation, and the lipid peroxide level in the cells was increased strikingly 1 h thereafter. On the other hand, free ferric ions were scarcely incorporated into the cells, and a significant increase in the lipid peroxide level in the cells was not observed. These data indicate that chinoform is carrier of iron for its passage through cell membranes and that the incorporated iron induces lipid peroxidation which in turn leads to neural cell degeneration.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01964807

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