FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2038751427> ?p ?o ?g. }

• W2038751427 endingPage "102" @default.
• W2038751427 startingPage "95" @default.
• W2038751427 abstract "There has been growing interest in high strength steel with a tensile strength higher than 800 MPa, which would be ideal for weight reduction and better performance of steel structures. However, there are two major problems in the application of high strength steel to structures. One is that the fatigue strength of welded joints is far lower than that of the base metal, and the other is that the weld metal and the heat-affected zone (HAZ) are likely to have cold cracking. These problems must be solved before high strength steel can be widely used in steel structures. As a solution to the problem of cold cracking, a reduced preheating type of high strength steel has recently been developed in which cold cracking in the HAZ is reduced by reduction of alloy components (lower Ceq, Pcm) without loss of strength. However, since the resistance to cold cracking of the weld metal has not been improved, preheating of the weld metal is still necessary, and the problem remains toward its wider use. Recently, Ohta et al. developed a low transformation-temperature welding consumable, in which compressive residual stress is induced by transformation expansion of martensitic transformation of weld metal at a low temperature near room temperature, and demonstrated that this consumable improves the fatigue strength of welded joints. We considered that the reduction of tensile residual stress in the low transformation-temperature welding consumable might also be effective in decreasing the cold cracking and that this consumable would be useful in manufacturing high performance welded joints with improved fatigue strength and cold-cracking resistance. In the present study, we examined the effects of low temperature-transformation weld materials on the prevention of cold cracking in high strength steel. Firstly, the y-shaped weld cracking tests demonstrated that reduction of residual tensile stress induced by martensitic transformation expansion of weld metal was effective in reducing cold cracking. Secondly, the effects of the degree of joint constraint on cold cracking in low transformation-temperature weld materials were examined by the y-shaped and H-shaped weld cracking tests. The cracking ratio was high at low degrees of joint constraint and low at high degrees of joint constraint. Two causes were considered: one was that the reduction of tensile residual stress by transformation expansion is higher at a higher degree of joint constraint, and the other was that the weld metal of martensitic structure alone is sensitive to cold cracking. According to the above investigation, we attempted to develop a weld material with high resistance to cold cracking at different degrees of constraint. To maintain the effects of reduction of tensile residual stress by transformation expansion to reduce the amount of diffusible hydrogen and the sensitivity of cracking, which are other causes of cracking, we designed and developed a 2-microstructure phase weld metal (martensite + retained austenite) by modifying the low temperature-transformation weld material to obtain a lower Ms point. We examined the effects of the degree of joint constraint on cold cracking, and confirmed that the cracking rate of the modified rod was almost 0% at all degrees of constraint, and its resistance to cold cracking was high." @default.
• W2038751427 created "2016-06-24" @default.
• W2038751427 creator A5009669777 @default.
• W2038751427 creator A5026356023 @default.
• W2038751427 creator A5036088337 @default.
• W2038751427 creator A5044096310 @default.
• W2038751427 creator A5051432410 @default.
• W2038751427 creator A5059332364 @default.
• W2038751427 creator A5065703964 @default.
• W2038751427 creator A5069713703 @default.
• W2038751427 date "2005-01-01" @default.
• W2038751427 modified "2023-09-25" @default.
• W2038751427 title "Development of New Low Transformation-Temperature Welding Consumable to Prevent Cold Cracking in High Strength Steel Welds" @default.
• W2038751427 cites W184968152 @default.
• W2038751427 cites W1991726036 @default.
• W2038751427 cites W2007310865 @default.
• W2038751427 cites W2315524008 @default.
• W2038751427 cites W2578534655 @default.
• W2038751427 cites W379273064 @default.
• W2038751427 cites W422517541 @default.
• W2038751427 cites W567452965 @default.
• W2038751427 cites W589429582 @default.
• W2038751427 doi "https://doi.org/10.2207/qjjws.23.95" @default.
• W2038751427 hasPublicationYear "2005" @default.
• W2038751427 type Work @default.
• W2038751427 sameAs 2038751427 @default.
• W2038751427 citedByCount "10" @default.
• W2038751427 countsByYear W20387514272012 @default.
• W2038751427 countsByYear W20387514272013 @default.
• W2038751427 countsByYear W20387514272016 @default.
• W2038751427 countsByYear W20387514272018 @default.
• W2038751427 countsByYear W20387514272019 @default.
• W2038751427 crossrefType "journal-article" @default.
• W2038751427 hasAuthorship W2038751427A5009669777 @default.
• W2038751427 hasAuthorship W2038751427A5026356023 @default.
• W2038751427 hasAuthorship W2038751427A5036088337 @default.
• W2038751427 hasAuthorship W2038751427A5044096310 @default.
• W2038751427 hasAuthorship W2038751427A5051432410 @default.
• W2038751427 hasAuthorship W2038751427A5059332364 @default.
• W2038751427 hasAuthorship W2038751427A5065703964 @default.
• W2038751427 hasAuthorship W2038751427A5069713703 @default.
• W2038751427 hasBestOaLocation W20387514271 @default.
• W2038751427 hasConcept C112950240 @default.
• W2038751427 hasConcept C131850400 @default.
• W2038751427 hasConcept C159985019 @default.
• W2038751427 hasConcept C191897082 @default.
• W2038751427 hasConcept C192562407 @default.
• W2038751427 hasConcept C19474535 @default.
• W2038751427 hasConcept C37292000 @default.
• W2038751427 hasConcept C58396970 @default.
• W2038751427 hasConceptScore W2038751427C112950240 @default.
• W2038751427 hasConceptScore W2038751427C131850400 @default.
• W2038751427 hasConceptScore W2038751427C159985019 @default.
• W2038751427 hasConceptScore W2038751427C191897082 @default.
• W2038751427 hasConceptScore W2038751427C192562407 @default.
• W2038751427 hasConceptScore W2038751427C19474535 @default.
• W2038751427 hasConceptScore W2038751427C37292000 @default.
• W2038751427 hasConceptScore W2038751427C58396970 @default.
• W2038751427 hasIssue "1" @default.
• W2038751427 hasLocation W20387514271 @default.
• W2038751427 hasOpenAccess W2038751427 @default.
• W2038751427 hasPrimaryLocation W20387514271 @default.
• W2038751427 hasRelatedWork W1975608897 @default.
• W2038751427 hasRelatedWork W1997159941 @default.
• W2038751427 hasRelatedWork W2004362670 @default.
• W2038751427 hasRelatedWork W2006221599 @default.
• W2038751427 hasRelatedWork W2044949441 @default.
• W2038751427 hasRelatedWork W2387616028 @default.
• W2038751427 hasRelatedWork W2531393654 @default.
• W2038751427 hasRelatedWork W2795554382 @default.
• W2038751427 hasRelatedWork W3122552578 @default.
• W2038751427 hasRelatedWork W4285731133 @default.
• W2038751427 hasVolume "23" @default.
• W2038751427 isParatext "false" @default.
• W2038751427 isRetracted "false" @default.
• W2038751427 magId "2038751427" @default.
• W2038751427 workType "article" @default.