FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2063061388> ?p ?o ?g. }

• W2063061388 abstract "The process parameters were optimized by bead weld in high nitrogen austenitic stainless steel with 12mm thickness. High nitrogen austenitic stainless steel plates with 20mm and 40mm thickness were welded with the optimum process parameters. The mechanical properties of weld joints were inspected. The experimental results indicate that the best process parameters of bead weld are that welding current is 260 A, welding speed is 600 mm.min, the flow rate of gas is 20 L.min, and torch height is 15 mm, the angle of welding torch is 6 degree. The internal qualities of weld bead were beyond the grade and heat II -affected zone were small. The mechanical properties of welded joints were excellent. For instance, the tensile strength can achieved move 80% than that of the base metal and the impact absorbing energies also approach 50% than that of the substrate metal. The optimum process parameters can effectively solve the problem of welding process of high nitrogen steels with mid-thickness by MIG welding. Introduction High nitrogen austenitic stainless steels obtain the austenite by replacing the bulk of nickel in the traditional stainless steels with nitrogen elements. Low production costs, excellent corrosion resistance and high strength-toughness can be achieved by nitrogen alloying [1]-[6]. High nitrogen austenitic stainless steel is a developing new engineering material [7]. Its application depends not only on the excellent comprehensive properties but the welding characteristics [8][9]. In the some fields of particular application, tandem MIG welding is a widely used and high-efficiency bonding technology. Therefore, the research on tandem MIG welding process of high nitrogen austenitic stainless steels for the application and research has a very important significance. High nitrogen austenitic stainless steel with 12mm thickness was tested by bead welding, and the welding parameters of bead welding were optimized. High nitrogen austenitic stainless steel plates with 20mm and 40mm thickness were welded with the optimum process parameters. The internal qualities, mechanical properties and micro-hardness of weld joints were tested. Experimental Materials and Procedure High nitrogen austenitic stainless steel (HNS) was used in the experiment and its chemical compositions (mass fraction in percent) as showed in Tab.1. Welding wire ER309L with the diameter of 1.2mm was used to bead welding. The shielding gas consisted of 5% N2 and 95% Ar. The flow rate of gas is 20L.min. The microstructure of the HNS is austenite with a small quantity of δ-ferrite. TAB.1. Chemical compositions of the HNS Elements C Cr Mn Si N Ni Fe Mass % 0.11 21.4 14.94 0.32 0.64 1.8 Balance A Robot and the tandem MIG welding machine were used in the bead welding experiment for 12mm-thickness HNS. The middle of the HNS weld was cut by water cutting jet. The internal cracks and penetration were observed and measured by etching the weld junction with FeCl3 International Conference on Education Technology and Information System (ICETIS 2013) © 2013. The authors Published by Atlantis Press 908 hydrochloric acid solution. And then the results of weld quality were recorded in detail. Besides, high nitrogen austenitic stainless steel plates with 20mm and 40mm thickness were welded with the optimum process parameters. The butt weld groove of the samples was double-V, and the angle was 60 degree, and the width of gap was 2mm. There were four-pass weld in the sample of 20mm-thickness HNS and seven in 40mm thickness for needing more enough filler metal. An X-ray detection machine XXQ 1650 was used to check the internal quality of weld for non-destructive testing after tandem MIG welding. The standard samples of tensile and impact were prepared by water cutting jet. The micro-structure of the heat-affected zone was observed by the optical and scanning electron microscopy, and the mechanical properties and micro-hardness of weld joints were tested. Results and Discussions Experiment of Bead Welding In the welding process of HNS, the stable welding arc, small welding spatter, excellent external appearance and non-gas cavity in surface. Figure 1 shows the cross sectional morphology of bead welding. There is no obvious welding crack and the weld fusion zones are all V-shaped. Fig.1. Cross sectional morphology of bead welding The weld width, weld reinforcement and weld penetration were measured in order to further explore the effects on different welding process of weld quality. The results were shown in figure 2. From Fig.2a and Fig.2c, it can be observed that the weld width B, weld reinforcement h and weld penetration H have no change with the different torch height and the flow rate of gas. The torch height and the flow rate of gas have no effect on the weld quality. Therefore, the flow rate of gas is 20L.min and torch height is 15mm can be set as the best welding process of bead welding for reducing the waste of shielding gas and torch head burned. 160 180 200 220 240 260 280 0 2 4 6 8 10 12 14 16 18 20 weld width B weld renforcement h weld penetration H H+h(torch height 15mm) torch height10mm" @default.
• W2063061388 created "2016-06-24" @default.
• W2063061388 creator A5004790031 @default.
• W2063061388 creator A5025551937 @default.
• W2063061388 creator A5058394999 @default.
• W2063061388 creator A5064108891 @default.
• W2063061388 creator A5073713223 @default.
• W2063061388 date "2013-01-01" @default.
• W2063061388 modified "2023-09-24" @default.
• W2063061388 title "Research on the Welding Process of High Nitrogen Steels with Mid-thickness by MIG Welding" @default.
• W2063061388 cites W162737588 @default.
• W2063061388 cites W2067253803 @default.
• W2063061388 doi "https://doi.org/10.2991/icetis-13.2013.208" @default.
• W2063061388 hasPublicationYear "2013" @default.
• W2063061388 type Work @default.
• W2063061388 sameAs 2063061388 @default.
• W2063061388 citedByCount "1" @default.
• W2063061388 countsByYear W20630613882019 @default.
• W2063061388 crossrefType "proceedings-article" @default.
• W2063061388 hasAuthorship W2063061388A5004790031 @default.
• W2063061388 hasAuthorship W2063061388A5025551937 @default.
• W2063061388 hasAuthorship W2063061388A5058394999 @default.
• W2063061388 hasAuthorship W2063061388A5064108891 @default.
• W2063061388 hasAuthorship W2063061388A5073713223 @default.
• W2063061388 hasBestOaLocation W20630613881 @default.
• W2063061388 hasConcept C112950240 @default.
• W2063061388 hasConcept C146868986 @default.
• W2063061388 hasConcept C159985019 @default.
• W2063061388 hasConcept C191897082 @default.
• W2063061388 hasConcept C192562407 @default.
• W2063061388 hasConcept C19474535 @default.
• W2063061388 hasConcept C20625102 @default.
• W2063061388 hasConcept C2779229422 @default.
• W2063061388 hasConcept C50916996 @default.
• W2063061388 hasConcept C87976508 @default.
• W2063061388 hasConcept C96288455 @default.
• W2063061388 hasConceptScore W2063061388C112950240 @default.
• W2063061388 hasConceptScore W2063061388C146868986 @default.
• W2063061388 hasConceptScore W2063061388C159985019 @default.
• W2063061388 hasConceptScore W2063061388C191897082 @default.
• W2063061388 hasConceptScore W2063061388C192562407 @default.
• W2063061388 hasConceptScore W2063061388C19474535 @default.
• W2063061388 hasConceptScore W2063061388C20625102 @default.
• W2063061388 hasConceptScore W2063061388C2779229422 @default.
• W2063061388 hasConceptScore W2063061388C50916996 @default.
• W2063061388 hasConceptScore W2063061388C87976508 @default.
• W2063061388 hasConceptScore W2063061388C96288455 @default.
• W2063061388 hasLocation W20630613881 @default.
• W2063061388 hasOpenAccess W2063061388 @default.
• W2063061388 hasPrimaryLocation W20630613881 @default.
• W2063061388 hasRelatedWork W1964419111 @default.
• W2063061388 hasRelatedWork W1977932373 @default.
• W2063061388 hasRelatedWork W2363938919 @default.
• W2063061388 hasRelatedWork W2392494447 @default.
• W2063061388 hasRelatedWork W2467518284 @default.
• W2063061388 hasRelatedWork W2725510901 @default.
• W2063061388 hasRelatedWork W2807553649 @default.
• W2063061388 hasRelatedWork W2884904854 @default.
• W2063061388 hasRelatedWork W584423222 @default.
• W2063061388 hasRelatedWork W2174012504 @default.
• W2063061388 isParatext "false" @default.
• W2063061388 isRetracted "false" @default.
• W2063061388 magId "2063061388" @default.
• W2063061388 workType "article" @default.