Impacts of diffusion brazing time on mechanical properties of Nicrofer 5520 superalloy joint by Ni-15Cr-3.7B filler metal
The microstructure and shear strength during diffusion brazing of Nicrofer 5520 superalloy were studied. The bonding temperature and filler metal were 1120 °C and 38 μm thick Ni-15%Cr-3.7%B, respectively. Seven holding times from 5 to 240 min were used. The findings revealed that full isothermal sol...
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| creator | Nasajpour, Ali Farzadi, A. Mirsalehi, Seyyed Ehsan |
| description | The microstructure and shear strength during diffusion brazing of Nicrofer 5520 superalloy were studied. The bonding temperature and filler metal were 1120 °C and 38 μm thick Ni-15%Cr-3.7%B, respectively. Seven holding times from 5 to 240 min were used. The findings revealed that full isothermal solidification occurs after the holding time of 30 min. The presence of eutectic phases in the interlayer and non-dissolved precipitates in the diffusion-affected zone (DAZ) cause a decrease in the shear strength. With the increase in the holding time after the isothermal solidification, the volume fraction of the precipitation in the DAZ decreases, and the precipitations transform into rounder particles. Consequently, the chemical composition becomes more homogeneous, and a lower precipitation volume fraction forms in the DAZ. The failure path shifts from the athermal solidification zone (ASZ) to the base metal, and shear strength is enhanced to 593 MPa, by extending the bonding time to 240 min. Through the increase in the holding time, the percentage of interlayer elements grows increasingly close to the chemical composition of the base metal, and the mechanical characteristics in the bond area and environs areas become more uniform. |
| doi_str_mv | 10.1007/s40194-023-01606-3 |
| format | Article |
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The bonding temperature and filler metal were 1120 °C and 38 μm thick Ni-15%Cr-3.7%B, respectively. Seven holding times from 5 to 240 min were used. The findings revealed that full isothermal solidification occurs after the holding time of 30 min. The presence of eutectic phases in the interlayer and non-dissolved precipitates in the diffusion-affected zone (DAZ) cause a decrease in the shear strength. With the increase in the holding time after the isothermal solidification, the volume fraction of the precipitation in the DAZ decreases, and the precipitations transform into rounder particles. Consequently, the chemical composition becomes more homogeneous, and a lower precipitation volume fraction forms in the DAZ. The failure path shifts from the athermal solidification zone (ASZ) to the base metal, and shear strength is enhanced to 593 MPa, by extending the bonding time to 240 min. 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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c270t-1589c380d3ed5415874ce3d81ed7164e2c2f07b1fae03b82feab07d500d6695d3</cites><orcidid>0000-0002-3594-7056</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40194-023-01606-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s40194-023-01606-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Nasajpour, Ali</creatorcontrib><creatorcontrib>Farzadi, A.</creatorcontrib><creatorcontrib>Mirsalehi, Seyyed Ehsan</creatorcontrib><title>Impacts of diffusion brazing time on mechanical properties of Nicrofer 5520 superalloy joint by Ni-15Cr-3.7B filler metal</title><title>Welding in the world</title><addtitle>Weld World</addtitle><description>The microstructure and shear strength during diffusion brazing of Nicrofer 5520 superalloy were studied. The bonding temperature and filler metal were 1120 °C and 38 μm thick Ni-15%Cr-3.7%B, respectively. Seven holding times from 5 to 240 min were used. The findings revealed that full isothermal solidification occurs after the holding time of 30 min. The presence of eutectic phases in the interlayer and non-dissolved precipitates in the diffusion-affected zone (DAZ) cause a decrease in the shear strength. With the increase in the holding time after the isothermal solidification, the volume fraction of the precipitation in the DAZ decreases, and the precipitations transform into rounder particles. Consequently, the chemical composition becomes more homogeneous, and a lower precipitation volume fraction forms in the DAZ. The failure path shifts from the athermal solidification zone (ASZ) to the base metal, and shear strength is enhanced to 593 MPa, by extending the bonding time to 240 min. Through the increase in the holding time, the percentage of interlayer elements grows increasingly close to the chemical composition of the base metal, and the mechanical characteristics in the bond area and environs areas become more uniform.</description><subject>Base metal</subject><subject>Bonding strength</subject><subject>Brazing</subject><subject>Chemical composition</subject><subject>Chemical precipitation</subject><subject>Chemistry and Materials Science</subject><subject>Chromium</subject><subject>Filler metals</subject><subject>Interlayers</subject><subject>Materials Science</subject><subject>Mechanical properties</subject><subject>Metallic Materials</subject><subject>Nickel base alloys</subject><subject>Precipitates</subject><subject>Research Paper</subject><subject>Shear strength</subject><subject>Solid Mechanics</subject><subject>Solidification</subject><subject>Superalloys</subject><subject>Theoretical and Applied Mechanics</subject><issn>0043-2288</issn><issn>1878-6669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kE1PxCAQhonRxHX1D3gi8cw6QFvoUTd-bLLRi54JLbCy6ccK7aH-enFr4s0DIROeZ4Z5EbqmsKIA4jZmQMuMAOMEaAEF4SdoQaWQpCiK8hQtADJOGJPyHF3EuAeAMp0FmjbtQddDxL3Dxjs3Rt93uAr6y3c7PPjW4lS3tv7Qna91gw-hP9gweHtUXnwdemcDznMGOI7pSTdNP-F977sBV1MiCM3XgfCVuMfON02CWzvo5hKdOd1Ee_V7L9H748Pb-plsX58267stqZmAIcmyrLkEw63Js1SJrLbcSGqNoEVmWc0ciIo6bYFXkjmrKxAmBzBp89zwJbqZ-6aff442Dmrfj6FLIxUrIc2AQtBEsZlK-8QYrFOH4FsdJkVB_USs5ohVilgdI1Y8SXyWYoK7nQ1_rf-xvgGYY33y</recordid><startdate>2024</startdate><enddate>2024</enddate><creator>Nasajpour, Ali</creator><creator>Farzadi, A.</creator><creator>Mirsalehi, Seyyed Ehsan</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-3594-7056</orcidid></search><sort><creationdate>2024</creationdate><title>Impacts of diffusion brazing time on mechanical properties of Nicrofer 5520 superalloy joint by Ni-15Cr-3.7B filler metal</title><author>Nasajpour, Ali ; Farzadi, A. ; Mirsalehi, Seyyed Ehsan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c270t-1589c380d3ed5415874ce3d81ed7164e2c2f07b1fae03b82feab07d500d6695d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Base metal</topic><topic>Bonding strength</topic><topic>Brazing</topic><topic>Chemical composition</topic><topic>Chemical precipitation</topic><topic>Chemistry and Materials Science</topic><topic>Chromium</topic><topic>Filler metals</topic><topic>Interlayers</topic><topic>Materials Science</topic><topic>Mechanical properties</topic><topic>Metallic Materials</topic><topic>Nickel base alloys</topic><topic>Precipitates</topic><topic>Research Paper</topic><topic>Shear strength</topic><topic>Solid Mechanics</topic><topic>Solidification</topic><topic>Superalloys</topic><topic>Theoretical and Applied Mechanics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nasajpour, Ali</creatorcontrib><creatorcontrib>Farzadi, A.</creatorcontrib><creatorcontrib>Mirsalehi, Seyyed Ehsan</creatorcontrib><collection>CrossRef</collection><jtitle>Welding in the world</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nasajpour, Ali</au><au>Farzadi, A.</au><au>Mirsalehi, Seyyed Ehsan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impacts of diffusion brazing time on mechanical properties of Nicrofer 5520 superalloy joint by Ni-15Cr-3.7B filler metal</atitle><jtitle>Welding in the world</jtitle><stitle>Weld World</stitle><date>2024</date><risdate>2024</risdate><volume>68</volume><issue>1</issue><spage>9</spage><epage>21</epage><pages>9-21</pages><issn>0043-2288</issn><eissn>1878-6669</eissn><abstract>The microstructure and shear strength during diffusion brazing of Nicrofer 5520 superalloy were studied. The bonding temperature and filler metal were 1120 °C and 38 μm thick Ni-15%Cr-3.7%B, respectively. Seven holding times from 5 to 240 min were used. The findings revealed that full isothermal solidification occurs after the holding time of 30 min. The presence of eutectic phases in the interlayer and non-dissolved precipitates in the diffusion-affected zone (DAZ) cause a decrease in the shear strength. With the increase in the holding time after the isothermal solidification, the volume fraction of the precipitation in the DAZ decreases, and the precipitations transform into rounder particles. Consequently, the chemical composition becomes more homogeneous, and a lower precipitation volume fraction forms in the DAZ. The failure path shifts from the athermal solidification zone (ASZ) to the base metal, and shear strength is enhanced to 593 MPa, by extending the bonding time to 240 min. Through the increase in the holding time, the percentage of interlayer elements grows increasingly close to the chemical composition of the base metal, and the mechanical characteristics in the bond area and environs areas become more uniform.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s40194-023-01606-3</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0002-3594-7056</orcidid></addata></record> |
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| subjects | Base metal Bonding strength Brazing Chemical composition Chemical precipitation Chemistry and Materials Science Chromium Filler metals Interlayers Materials Science Mechanical properties Metallic Materials Nickel base alloys Precipitates Research Paper Shear strength Solid Mechanics Solidification Superalloys Theoretical and Applied Mechanics |
| title | Impacts of diffusion brazing time on mechanical properties of Nicrofer 5520 superalloy joint by Ni-15Cr-3.7B filler metal |
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