Published in Materials
This study compared the effect of the interaction time of periodic water clusters on the surface integrity of AISI 304 tungsten inert gas (TIG) welded joints at different excitation frequencies, as the effect of the technological parameters of pulsating water jet (PWJ) on the mechanical properties of TIG welded joints are under-researched. The TIG ...
Published in Inorganic Materials: Applied Research
The welding properties of argon-arc and electron-beam welding of pseudo-β-titanium alloy of VST 5553 grade are investigated. It is necessary to apply heat treatment after welding to improve the mechanical properties of welded joints.
Published in Inorganic Materials: Applied Research
Abstract—This paper considers the protection of welded joints from oxidation during welding of marine hull structures made of titanium alloys. The welding requirements for equipment and protective devices are defined. The technological measures are considered to ensure the reliable protection of welded joints from ambient air and, accordingly, to e...
Published in Russian Journal of Nondestructive Testing
AbstractIssues of quality control of welded joints in hot-tool butt-welded polyethylene pipelines are considered. It is indicated that the main scope of control currently falls on inspections based on the parameters of welding and on selective mechanical testing of welded joints. Physical nondestructive post-welding testing methods are used little,...
Published in Materials
This work is focused on the analysis of the influence of welding on the properties and microstructure of the AISI316L stainless steel tube produced by 3D printing, specifically the SLM (Selective Laser Melting) method. Both non-destructive and destructive tests, including metallographic and fractographic analyses, were performed within the experime...
Bakalářská práce se zabývá tuhostí prefabrikovaných spojů a jejich vlivem na statické schéma. Najdete zde rozdělení spojů podle různých kritérií: dle tuhosti, provedení a přenosu vnitřních sil. Jsou zde obecně popsány možnosti provádění spojů prefabrikovaných dílců, kloubových i tuhých. Práce se zabývá návrhem styku spojitých průvlaků v místě sloup...
The full benefits of application the high strength low alloyed steels HSLA can be achieved if the structures will be able to carry the alternate loads and fatigue cracks will not be formed, even in the vicinity of welded joints. For this reason the purpose of this study is to find and to explain the influence of different factors on fatigue crack i...
Structural geometry and stochastic loads such as swell and wind seas can typically induce multiaxial stress states in welded details of marine structures. It is known that such complex time varying stress states determine the fatigue resistance of welded steel joints. Therefore, it is of importance to account for them in fatigue lifetime assessment...
API 5L X80 steels are widely used in welded pipes in the petroleum industry. However, microstructural changes in the heat affected zone are a concern when welding such pipes due to the potential formation of regions with low toughness. Despite all the research concerning mechanical properties of welded joints, the acceptance criteria for the qualif...
Tato bakalářská práce zkoumá rozdíly v kvalitě smaltového povlaku na svarovém spoji při použití různé předúpravy povrchu. Nejprve nás seznámí se svařovací částí, kde je zjištěna svařitelnost materiálu a poté je zvolena vhodná svařovací technologie. Za touto částí následuje část o samotných smaltech, kde jsou popsány jejich vlastnosti, jak se vyrábí...
