Failure Analysis of Corrugated Hoses
| Autor: | Jiří Švejcar, Lenka Klakurková, Pavel Gejdoš, Martin Juliš, Miroslava Horynová, Lucie Páleníková |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry General Materials Science 02 engineering and technology Structural engineering 010402 general chemistry 021001 nanoscience & nanotechnology 0210 nano-technology Condensed Matter Physics business 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences |
| Zdroj: | Solid State Phenomena. 270:68-73 |
| ISSN: | 1662-9779 |
| Popis: | Stainless steel corrugated hoses are widely used in many areas of industry. They are used in application such as distribution of drinking and supply water, gas and also various working fluids, for example in cooling systems. During the assembly of AISI 316L corrugated hoses for cooling systems defects form due to deformation of the hoses during assembly. The absolute tightness of such systems is required and any defects of the hoses are therefore undesirable. This study deals with evaluation of most common defects of corrugated hoses via light and scanning electron microscopy and proposes measures to minimize such defects. It was revealed, that defects form due to deformation of the hoses during assembly or, in case of unfavorable microstructure, during the service life. In later case, failure of the hose was caused by higher content of deformation-induced martensite in microstructure as a result of intense cold forming. Component with such microstructure exhibited less favorable mechanical properties and hoses were more prone to the failure. |
| Databáze: | OpenAIRE |
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