995 resultados para 321-U1338D


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The effect of Cl- on the corrosive wear behaviour of AISI 321 stainless steel in H2SO4 solution was studied via the corrosive wear rate, the load bearing capacity of passive film and the relationship between pitting and corrosive wear. There is a critical load at natural potential, below which the corrosive wear rate is slightly lowered by Cl-, while above which is increased. At natural potential there are more pits at low load than that at a higher one in the wear tracks and the pits are also deeper. The load bearing capacity is lowered by Cl- at passive region and then the corrosive wear rate increased.

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The stress corrosion cracking (SCC) of LambdaISI 321 stainless steel in acidic chloride solution was studied by slow strain rate (SSR) technique and fracture mechanics method. The fractured surface was characterized by cleavage fracture. In order to clarify the SCC mechanism, the effects of inhibitor KI on SCC behaviour were also included in this paper. A study showed that the inhibition effects of KI on SCC were mainly attributed to the anodic reaction of the corrosion process. The results of strain distribution in front of the crack tip of the fatigue pre-cracked plate specimens in air, in the blank solution (acidic chloride solution without inhibitor KI) and in the solution added with KI measured by speckle interferometry (SPI) support the unified mechanism of SCC and corrosion fatigue cracking (CFC).

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Collection : Théâtre contemporain illustré ; 321e et 322e livraisons

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Tesis (Maestría en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) UANL, 2013.

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Incluye cuatro tipos de índices que facilitan la búsqueda de los artículos publicados en los números 321 a 323 y en el número extraordinario del año 2000. En el primer índice, los artículos se agrupan por notaciones de la Clasificación Decimal Universal (CDU) y en los siguientes por orden alfabético de autores, títulos y materias.

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Jornal elaborado pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

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[L. Ovčinskis]

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Zacharias Frankel