FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890739921> ?p ?o ?g. }

• W2890739921 abstract "Recently, X65 carbon steel pipes internally clad with a thin Inconel625 alloy lining are highly used. However, during welding the Inconel625 lining in the root pass, the weld bead is uneven. To avoid weld defects in the successive passes, an additional grinding procedure is always required to flatten the weld bead. It is known that as an indispensable component in GMAW, the shielding gas can protect the liquid metal from oxidation and defects in the atmosphere. The shielding gas composition greatly determines the characteristics of the welding arc which plays a significant role in the heat, mass transfer during welding and flow motion in the weld pool. It is proposed that the uneven weld bead can possibly be improved by changing the shielding gas composition during welding the Inconel625 lining. Therefore, it is necessary to study the effect of shielding gas composition on the weld bead geometry during short-circuit gas metal arc welding (GMAW) of Inconel625 alloy. In this research, short-circuit GMAW of the Inconel625 lining was reproduced in a laboratory scale. Three kinds of gas, argon (Ar), helium (He) and carbon dioxide (CO2) were considered and two types of experimental configurations, bead-on-plate welding and U-shaped groove butt welding were performed. It was found that the shielding gas composition could make a great influence on the arc voltage, power of the heat source (welding arc), flow motion in the weld pool and the resultant geometry of the weld bead. For the Ar-He shielding gas mixtures, the arc voltage is increased as the He content is increased, which is attributed that the ionisation potential of He is higher than that of Ar. As a consequence, with an increase of the He content, the heat source (the welding arc) becomes more powerful and more heat is transferred to the workpiece. A larger fusion area is created. For the Ar-CO2 shielding gas mixtures, it was found that adding 3.3% CO2 to Ar could raise the arc voltage and lead to a more powerful welding arc. More importantly, the presence of oxygen which is dissociated from CO2 can largely reduce the surface tension of the liquid metal. The temperature gradient of the surface tension can be changed from negative to positive and the direction of the Marangoni convection which is driven by the surface tension force will be changed from outward and upward to inward and downward. The efficiency of the heat transfer from the surface of the weld pool to the bottom is greatly enhanced. Consequently, addition of 3.3% CO2 to Ar can deepen the penetration and enlarge the fusion area." @default.
• W2890739921 created "2018-09-27" @default.
• W2890739921 creator A5071140199 @default.
• W2890739921 date "2016-01-01" @default.
• W2890739921 modified "2023-09-26" @default.
• W2890739921 title "The Effect of Shielding Gas Composition on Weld Bead Geometry during Short-circuit GMA Welding of Inconel625 Alloy" @default.
• W2890739921 cites W1316821 @default.
• W2890739921 cites W134098765 @default.
• W2890739921 cites W146659004 @default.
• W2890739921 cites W1506545980 @default.
• W2890739921 cites W1556325278 @default.
• W2890739921 cites W1972520549 @default.
• W2890739921 cites W1975105806 @default.
• W2890739921 cites W1978795647 @default.
• W2890739921 cites W1980302103 @default.
• W2890739921 cites W1986170718 @default.
• W2890739921 cites W1991390845 @default.
• W2890739921 cites W2004025135 @default.
• W2890739921 cites W2006322394 @default.
• W2890739921 cites W2010776327 @default.
• W2890739921 cites W2011179837 @default.
• W2890739921 cites W2015465776 @default.
• W2890739921 cites W2018131552 @default.
• W2890739921 cites W2018621827 @default.
• W2890739921 cites W2022338945 @default.
• W2890739921 cites W2024692258 @default.
• W2890739921 cites W2025554782 @default.
• W2890739921 cites W2026245486 @default.
• W2890739921 cites W2029690610 @default.
• W2890739921 cites W2032429039 @default.
• W2890739921 cites W2034006425 @default.
• W2890739921 cites W2039491889 @default.
• W2890739921 cites W2039930591 @default.
• W2890739921 cites W2046646449 @default.
• W2890739921 cites W2047265697 @default.
• W2890739921 cites W2054037221 @default.
• W2890739921 cites W2055316644 @default.
• W2890739921 cites W2059254980 @default.
• W2890739921 cites W2061878032 @default.
• W2890739921 cites W2063566534 @default.
• W2890739921 cites W2063747694 @default.
• W2890739921 cites W2065409243 @default.
• W2890739921 cites W2067394687 @default.
• W2890739921 cites W2076679792 @default.
• W2890739921 cites W2078176148 @default.
• W2890739921 cites W2090370118 @default.
• W2890739921 cites W2094337968 @default.
• W2890739921 cites W2094715051 @default.
• W2890739921 cites W2099718385 @default.
• W2890739921 cites W2102327347 @default.
• W2890739921 cites W2105661960 @default.
• W2890739921 cites W2105955911 @default.
• W2890739921 cites W2106094353 @default.
• W2890739921 cites W2109704857 @default.
• W2890739921 cites W2111437662 @default.
• W2890739921 cites W2118635009 @default.
• W2890739921 cites W2121007517 @default.
• W2890739921 cites W2124914711 @default.
• W2890739921 cites W2129034380 @default.
• W2890739921 cites W2130500866 @default.
• W2890739921 cites W2133839408 @default.
• W2890739921 cites W2168133235 @default.
• W2890739921 cites W2172929162 @default.
• W2890739921 cites W2411263725 @default.
• W2890739921 cites W247605118 @default.
• W2890739921 cites W2488633284 @default.
• W2890739921 cites W2518732563 @default.
• W2890739921 cites W3015460156 @default.
• W2890739921 cites W35617481 @default.
• W2890739921 cites W573416738 @default.
• W2890739921 cites W576070123 @default.
• W2890739921 cites W61960891 @default.
• W2890739921 cites W659087825 @default.
• W2890739921 cites W1247036096 @default.
• W2890739921 cites W2488498604 @default.
• W2890739921 cites W2526485511 @default.
• W2890739921 cites W60512362 @default.
• W2890739921 hasPublicationYear "2016" @default.
• W2890739921 type Work @default.
• W2890739921 sameAs 2890739921 @default.
• W2890739921 citedByCount "0" @default.
• W2890739921 crossrefType "journal-article" @default.
• W2890739921 hasAuthorship W2890739921A5071140199 @default.
• W2890739921 hasConcept C146868986 @default.
• W2890739921 hasConcept C159985019 @default.
• W2890739921 hasConcept C167773975 @default.
• W2890739921 hasConcept C177250429 @default.
• W2890739921 hasConcept C191897082 @default.
• W2890739921 hasConcept C192562407 @default.
• W2890739921 hasConcept C19474535 @default.
• W2890739921 hasConcept C20480867 @default.
• W2890739921 hasConcept C206615322 @default.
• W2890739921 hasConcept C3450827 @default.
• W2890739921 hasConcept C44273521 @default.
• W2890739921 hasConcept C50916996 @default.
• W2890739921 hasConceptScore W2890739921C146868986 @default.
• W2890739921 hasConceptScore W2890739921C159985019 @default.
• W2890739921 hasConceptScore W2890739921C167773975 @default.
• W2890739921 hasConceptScore W2890739921C177250429 @default.
• W2890739921 hasConceptScore W2890739921C191897082 @default.

• next