Henry Granjon Prize Competition 2010 Winner Category a: “joining and Fabrication Technology” Study On Friction Stir Spot Welding Of Dual-Phase High-Strength Steel Sheets
Friction stir spot welding (FSSW) was applied to interstitial free (IF) steel sheet and dual-phase high-strength steels for automobiles with an uncoated Si 3 N 4 tool. The tool with TiN-coating and Ar shielding gas were also attempted. Defect-free joints were successfully obtained. Microstructure di...
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| Veröffentlicht in: | Welding in the world 2011-09, Vol.55 (9-10), p.2-11 |
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| container_title | Welding in the world |
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| creator | Ohashi, Ryoji |
| description | Friction stir spot welding (FSSW) was applied to interstitial free (IF) steel sheet and dual-phase high-strength steels for automobiles with an uncoated Si
3
N
4
tool. The tool with TiN-coating and Ar shielding gas were also attempted. Defect-free joints were successfully obtained. Microstructure distribution of the joint and its evolution during FSSW were systematically examined as well as joint strength. The joint exhibited the heterogeneous microstructure distribution, which could be mainly explained by phase transformation from the different peak temperatures during FSSW. However, contaminations of oxygen, silicon and nitrogen were detected in an elliptical region observed near the pin hole, and strongly affected the microstructural evolution. Additionally, they caused the increase in hardness in the elliptical zone. On the other hand, by using coated tool and shielding gas, contaminations and hardness increase in elliptical region were suppressed and joint strength was improved. |
| doi_str_mv | 10.1007/BF03321314 |
| format | Article |
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3
N
4
tool. The tool with TiN-coating and Ar shielding gas were also attempted. Defect-free joints were successfully obtained. Microstructure distribution of the joint and its evolution during FSSW were systematically examined as well as joint strength. The joint exhibited the heterogeneous microstructure distribution, which could be mainly explained by phase transformation from the different peak temperatures during FSSW. However, contaminations of oxygen, silicon and nitrogen were detected in an elliptical region observed near the pin hole, and strongly affected the microstructural evolution. Additionally, they caused the increase in hardness in the elliptical zone. On the other hand, by using coated tool and shielding gas, contaminations and hardness increase in elliptical region were suppressed and joint strength was improved.</description><identifier>ISSN: 0043-2288</identifier><identifier>EISSN: 1878-6669</identifier><identifier>DOI: 10.1007/BF03321314</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Chemistry and Materials Science ; Materials Science ; Metallic Materials ; Peer-Reviewed Section ; Solid Mechanics ; Theoretical and Applied Mechanics</subject><ispartof>Welding in the world, 2011-09, Vol.55 (9-10), p.2-11</ispartof><rights>International Institute of Welding 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c267t-ea55ab79f41cb251a75d0bddcaf18b60743754f3148388e9845b1eaebe1d0e3b3</citedby><cites>FETCH-LOGICAL-c267t-ea55ab79f41cb251a75d0bddcaf18b60743754f3148388e9845b1eaebe1d0e3b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/BF03321314$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/BF03321314$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Ohashi, Ryoji</creatorcontrib><title>Henry Granjon Prize Competition 2010 Winner Category a: “joining and Fabrication Technology” Study On Friction Stir Spot Welding Of Dual-Phase High-Strength Steel Sheets</title><title>Welding in the world</title><addtitle>Weld World</addtitle><description>Friction stir spot welding (FSSW) was applied to interstitial free (IF) steel sheet and dual-phase high-strength steels for automobiles with an uncoated Si
3
N
4
tool. The tool with TiN-coating and Ar shielding gas were also attempted. Defect-free joints were successfully obtained. Microstructure distribution of the joint and its evolution during FSSW were systematically examined as well as joint strength. The joint exhibited the heterogeneous microstructure distribution, which could be mainly explained by phase transformation from the different peak temperatures during FSSW. However, contaminations of oxygen, silicon and nitrogen were detected in an elliptical region observed near the pin hole, and strongly affected the microstructural evolution. Additionally, they caused the increase in hardness in the elliptical zone. On the other hand, by using coated tool and shielding gas, contaminations and hardness increase in elliptical region were suppressed and joint strength was improved.</description><subject>Chemistry and Materials Science</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Peer-Reviewed Section</subject><subject>Solid Mechanics</subject><subject>Theoretical and Applied Mechanics</subject><issn>0043-2288</issn><issn>1878-6669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNptkM9Kw0AQhxdRsFYvPsGelehu_m69aTWtUGghlR7DJpkkG-Ju2WwP8dQH0UfwpfokblvBi4dhYOabH8OH0DUld5SQ6P4pJp7nUo_6J2hAWcScMAxHp2hAiO85rsvYObrouoYQMrI1QN9TkLrHE81loyReaPEBeKze12CEEXbiEkrwSkgJGo-5gUpZnD_g3fazUUIKWWEuCxzzTIucH06WkNdStarqd9svnJhN0eO5xLEFDvvECI2TtTJ4BW2xT5iX-HnDW2dR8w7wVFS1kxgNsjK1pQFanNQAprtEZyVvO7j67UP0Fr8sx1NnNp-8jh9nTu6GkXGABwHPolHp0zxzA8qjoCBZUeS8pCwLSeR7UeCX1hLzGIMR84OMAocMaEHAy7whujnm5lp1nYYyXWvxznWfUpLuRad_oi18e4Q7C8kKdNqojZb2v__oH7T5gZM</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Ohashi, Ryoji</creator><general>Springer Berlin Heidelberg</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20110901</creationdate><title>Henry Granjon Prize Competition 2010 Winner Category a: “joining and Fabrication Technology” Study On Friction Stir Spot Welding Of Dual-Phase High-Strength Steel Sheets</title><author>Ohashi, Ryoji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c267t-ea55ab79f41cb251a75d0bddcaf18b60743754f3148388e9845b1eaebe1d0e3b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Chemistry and Materials Science</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Peer-Reviewed Section</topic><topic>Solid Mechanics</topic><topic>Theoretical and Applied Mechanics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ohashi, Ryoji</creatorcontrib><collection>CrossRef</collection><jtitle>Welding in the world</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ohashi, Ryoji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Henry Granjon Prize Competition 2010 Winner Category a: “joining and Fabrication Technology” Study On Friction Stir Spot Welding Of Dual-Phase High-Strength Steel Sheets</atitle><jtitle>Welding in the world</jtitle><stitle>Weld World</stitle><date>2011-09-01</date><risdate>2011</risdate><volume>55</volume><issue>9-10</issue><spage>2</spage><epage>11</epage><pages>2-11</pages><issn>0043-2288</issn><eissn>1878-6669</eissn><abstract>Friction stir spot welding (FSSW) was applied to interstitial free (IF) steel sheet and dual-phase high-strength steels for automobiles with an uncoated Si
3
N
4
tool. The tool with TiN-coating and Ar shielding gas were also attempted. Defect-free joints were successfully obtained. Microstructure distribution of the joint and its evolution during FSSW were systematically examined as well as joint strength. The joint exhibited the heterogeneous microstructure distribution, which could be mainly explained by phase transformation from the different peak temperatures during FSSW. However, contaminations of oxygen, silicon and nitrogen were detected in an elliptical region observed near the pin hole, and strongly affected the microstructural evolution. Additionally, they caused the increase in hardness in the elliptical zone. On the other hand, by using coated tool and shielding gas, contaminations and hardness increase in elliptical region were suppressed and joint strength was improved.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/BF03321314</doi><tpages>10</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Welding in the world, 2011-09, Vol.55 (9-10), p.2-11 |
| issn | 0043-2288 1878-6669 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF03321314 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Chemistry and Materials Science Materials Science Metallic Materials Peer-Reviewed Section Solid Mechanics Theoretical and Applied Mechanics |
| title | Henry Granjon Prize Competition 2010 Winner Category a: “joining and Fabrication Technology” Study On Friction Stir Spot Welding Of Dual-Phase High-Strength Steel Sheets |
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