Effects of several TIG weld repairs on the axial fatigue strength of AISI 4130 aeronautical steel-welded joints
ABSTRACT Welded joints of airframes critical to the flight‐safety are commonly repair welded during its operational live. In this study, the effect of up to three weld repairs by gas tungsten arc welding (GTAW) on the axial fatigue strength of AISI4130 steel used in an airframe critical to the fligh...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 2012-03, Vol.35 (3), p.191-204 |
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| creator | NASCIMENTO, M. P. VOORWALD, H. J. C. FILHO, J. DA C. PAYÃO |
| description | ABSTRACT
Welded joints of airframes critical to the flight‐safety are commonly repair welded during its operational live. In this study, the effect of up to three weld repairs by gas tungsten arc welding (GTAW) on the axial fatigue strength of AISI4130 steel used in an airframe critical to the flight‐safety was investigated. The tests were performed on hot‐rolled steel plate specimens, 0.89 mm thick, with load ratio R= 0.1, constant amplitude, at 20 Hz frequency and room temperature. The results obtained indicated that the axial fatigue strength decreased with the GTAW process itself, and with the subsequent repair cycles, as a consequence of microstructural and microhardness changes and of weld profile geometry factors, which induced high stress concentration at the weld toe. |
| doi_str_mv | 10.1111/j.1460-2695.2011.01606.x |
| format | Article |
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Welded joints of airframes critical to the flight‐safety are commonly repair welded during its operational live. In this study, the effect of up to three weld repairs by gas tungsten arc welding (GTAW) on the axial fatigue strength of AISI4130 steel used in an airframe critical to the flight‐safety was investigated. The tests were performed on hot‐rolled steel plate specimens, 0.89 mm thick, with load ratio R= 0.1, constant amplitude, at 20 Hz frequency and room temperature. The results obtained indicated that the axial fatigue strength decreased with the GTAW process itself, and with the subsequent repair cycles, as a consequence of microstructural and microhardness changes and of weld profile geometry factors, which induced high stress concentration at the weld toe.</description><identifier>ISSN: 8756-758X</identifier><identifier>EISSN: 1460-2695</identifier><identifier>DOI: 10.1111/j.1460-2695.2011.01606.x</identifier><identifier>CODEN: FFESEY</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Aging aircraft ; Aircraft ; Applied sciences ; Chromium molybdenum steels ; Exact sciences and technology ; Fatigue ; Fatigue strength ; Gas tungsten arc welding ; GTAW ; heat-affected zone ; high strength low alloy steel ; High strength steels ; Hot rolling ; Joining, thermal cutting: metallurgical aspects ; Joint strength ; Maintenance ; Materials science ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metal fatigue ; Metals. Metallurgy ; microstructure ; repair welding ; Repairing ; Steel ; Structural steels ; weld metal ; weld toe notch ; Welded joints ; Welding</subject><ispartof>Fatigue & fracture of engineering materials & structures, 2012-03, Vol.35 (3), p.191-204</ispartof><rights>Copyright © 2011 Blackwell Publishing Ltd.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4416-d787a0843d6a1a51f37db417e27ebdb9cb23a3e0ed48841f21023147ad79cf4f3</citedby><cites>FETCH-LOGICAL-c4416-d787a0843d6a1a51f37db417e27ebdb9cb23a3e0ed48841f21023147ad79cf4f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1460-2695.2011.01606.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1460-2695.2011.01606.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25572562$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>NASCIMENTO, M. P.</creatorcontrib><creatorcontrib>VOORWALD, H. J. C.</creatorcontrib><creatorcontrib>FILHO, J. DA C. PAYÃO</creatorcontrib><title>Effects of several TIG weld repairs on the axial fatigue strength of AISI 4130 aeronautical steel-welded joints</title><title>Fatigue & fracture of engineering materials & structures</title><description>ABSTRACT
Welded joints of airframes critical to the flight‐safety are commonly repair welded during its operational live. In this study, the effect of up to three weld repairs by gas tungsten arc welding (GTAW) on the axial fatigue strength of AISI4130 steel used in an airframe critical to the flight‐safety was investigated. The tests were performed on hot‐rolled steel plate specimens, 0.89 mm thick, with load ratio R= 0.1, constant amplitude, at 20 Hz frequency and room temperature. The results obtained indicated that the axial fatigue strength decreased with the GTAW process itself, and with the subsequent repair cycles, as a consequence of microstructural and microhardness changes and of weld profile geometry factors, which induced high stress concentration at the weld toe.</description><subject>Aging aircraft</subject><subject>Aircraft</subject><subject>Applied sciences</subject><subject>Chromium molybdenum steels</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fatigue strength</subject><subject>Gas tungsten arc welding</subject><subject>GTAW</subject><subject>heat-affected zone</subject><subject>high strength low alloy steel</subject><subject>High strength steels</subject><subject>Hot rolling</subject><subject>Joining, thermal cutting: metallurgical aspects</subject><subject>Joint strength</subject><subject>Maintenance</subject><subject>Materials science</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metal fatigue</subject><subject>Metals. Metallurgy</subject><subject>microstructure</subject><subject>repair welding</subject><subject>Repairing</subject><subject>Steel</subject><subject>Structural steels</subject><subject>weld metal</subject><subject>weld toe notch</subject><subject>Welded joints</subject><subject>Welding</subject><issn>8756-758X</issn><issn>1460-2695</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkc1uEzEUhS0EUkPhHSwkJDYz9e_YWbCoqiQNigqConZnOTPXrYfpTLA9NH17PE2VBSu8saXzneOrcxHClJQ0n7O2pKIiBavmsmSE0pLQilTl_hWaHYXXaKaVrAol9e0JehtjSzIlOJ-hYeEc1CniweEIfyDYDl-vV_gRugYH2FkfstbjdA_Y7n1WnU3-bgQcU4D-Lt1PzvP1jzUWlBNsIQy9HZOvMxoTQFdMUdDgdvB9iu_QG2e7CO9f7lP0c7m4vrgsNl9X64vzTVELQauiUVpZogVvKkutpI6rZiuoAqZg22zn9ZZxy4FAI7QW1DFKGKdC2UbNayccP0WfDrm7MPweISbz4GMNXWd7GMZoKOGaE0I4z-iHf9B2GEOfpzNzxiuS52EZ0geoDkOMAZzZBf9gw1NOMtMiTGumvs3Ut5kWYZ4XYfbZ-vEl38bcigu2r308-pmUisnnLz4fuEffwdN_55vlcjG9sr84-H3ufX_02_DLVIoraW6uVkbLq80N-_bdfOF_AQxbqU0</recordid><startdate>201203</startdate><enddate>201203</enddate><creator>NASCIMENTO, M. P.</creator><creator>VOORWALD, H. J. C.</creator><creator>FILHO, J. DA C. PAYÃO</creator><general>Blackwell Publishing Ltd</general><general>Blackwell</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201203</creationdate><title>Effects of several TIG weld repairs on the axial fatigue strength of AISI 4130 aeronautical steel-welded joints</title><author>NASCIMENTO, M. P. ; VOORWALD, H. J. C. ; FILHO, J. DA C. PAYÃO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4416-d787a0843d6a1a51f37db417e27ebdb9cb23a3e0ed48841f21023147ad79cf4f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Aging aircraft</topic><topic>Aircraft</topic><topic>Applied sciences</topic><topic>Chromium molybdenum steels</topic><topic>Exact sciences and technology</topic><topic>Fatigue</topic><topic>Fatigue strength</topic><topic>Gas tungsten arc welding</topic><topic>GTAW</topic><topic>heat-affected zone</topic><topic>high strength low alloy steel</topic><topic>High strength steels</topic><topic>Hot rolling</topic><topic>Joining, thermal cutting: metallurgical aspects</topic><topic>Joint strength</topic><topic>Maintenance</topic><topic>Materials science</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metal fatigue</topic><topic>Metals. Metallurgy</topic><topic>microstructure</topic><topic>repair welding</topic><topic>Repairing</topic><topic>Steel</topic><topic>Structural steels</topic><topic>weld metal</topic><topic>weld toe notch</topic><topic>Welded joints</topic><topic>Welding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>NASCIMENTO, M. P.</creatorcontrib><creatorcontrib>VOORWALD, H. J. C.</creatorcontrib><creatorcontrib>FILHO, J. DA C. 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PAYÃO</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of several TIG weld repairs on the axial fatigue strength of AISI 4130 aeronautical steel-welded joints</atitle><jtitle>Fatigue & fracture of engineering materials & structures</jtitle><date>2012-03</date><risdate>2012</risdate><volume>35</volume><issue>3</issue><spage>191</spage><epage>204</epage><pages>191-204</pages><issn>8756-758X</issn><eissn>1460-2695</eissn><coden>FFESEY</coden><abstract>ABSTRACT
Welded joints of airframes critical to the flight‐safety are commonly repair welded during its operational live. In this study, the effect of up to three weld repairs by gas tungsten arc welding (GTAW) on the axial fatigue strength of AISI4130 steel used in an airframe critical to the flight‐safety was investigated. The tests were performed on hot‐rolled steel plate specimens, 0.89 mm thick, with load ratio R= 0.1, constant amplitude, at 20 Hz frequency and room temperature. The results obtained indicated that the axial fatigue strength decreased with the GTAW process itself, and with the subsequent repair cycles, as a consequence of microstructural and microhardness changes and of weld profile geometry factors, which induced high stress concentration at the weld toe.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1460-2695.2011.01606.x</doi><tpages>14</tpages></addata></record> |
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| subjects | Aging aircraft Aircraft Applied sciences Chromium molybdenum steels Exact sciences and technology Fatigue Fatigue strength Gas tungsten arc welding GTAW heat-affected zone high strength low alloy steel High strength steels Hot rolling Joining, thermal cutting: metallurgical aspects Joint strength Maintenance Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metal fatigue Metals. Metallurgy microstructure repair welding Repairing Steel Structural steels weld metal weld toe notch Welded joints Welding |
| title | Effects of several TIG weld repairs on the axial fatigue strength of AISI 4130 aeronautical steel-welded joints |
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