Effect of travel speed and stress relief on thin Ti-6Al-4V laser wire deposits
The effect of two travel speeds on thin Ti-6Al-4V buildups produced by Laser Wire Deposition (LWD) has been investigated. A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior β grains into horizontal prior β grains. It was associated with lower strength hardly meeting minimum...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2018-05, Vol.724, p.335-347 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Chekir, N. Tian, Y. Gauvin, R. Brodusch, N. Sixsmith, J.J. Brochu, M. |
| description | The effect of two travel speeds on thin Ti-6Al-4V buildups produced by Laser Wire Deposition (LWD) has been investigated. A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior β grains into horizontal prior β grains. It was associated with lower strength hardly meeting minimum wrought requirements as set by the AMS4911. On the other hand, it was shown that by increasing the travel speed to 7.2 mm/s, sufficiently high cooling rates are occurring creating a fine α + β basket weave structure, while no recrystallization of the prior β grains has been observed. Tensile properties were improved with strength consistently exceeding minimum wrought requirements. An additional stress relief cycle preserved the effect of deposition parameters on material properties. A strong anisotropy in elongation was associated with the slower travel speed where higher values were derived along the Z direction. While the faster travel speed exhibited isotropic properties. Strengthening of the deposits has been observed following a stress relief cycle. |
| doi_str_mv | 10.1016/j.msea.2018.03.101 |
| format | Article |
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A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior β grains into horizontal prior β grains. It was associated with lower strength hardly meeting minimum wrought requirements as set by the AMS4911. On the other hand, it was shown that by increasing the travel speed to 7.2 mm/s, sufficiently high cooling rates are occurring creating a fine α + β basket weave structure, while no recrystallization of the prior β grains has been observed. Tensile properties were improved with strength consistently exceeding minimum wrought requirements. An additional stress relief cycle preserved the effect of deposition parameters on material properties. A strong anisotropy in elongation was associated with the slower travel speed where higher values were derived along the Z direction. While the faster travel speed exhibited isotropic properties. Strengthening of the deposits has been observed following a stress relief cycle.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2018.03.101</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Additive manufacturing ; Anisotropy ; Cooling rate ; Deposition ; Elongation ; Grains ; Heat treating ; Heat treatment ; Material properties ; Mechanical properties ; Microstructure ; Microstructure characterization ; Recrystallization ; Stresses ; Tensile properties ; Ti-6Al-4V ; Titanium base alloys ; Travel speed ; Velocity ; Wire</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>The effect of two travel speeds on thin Ti-6Al-4V buildups produced by Laser Wire Deposition (LWD) has been investigated. A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior β grains into horizontal prior β grains. It was associated with lower strength hardly meeting minimum wrought requirements as set by the AMS4911. On the other hand, it was shown that by increasing the travel speed to 7.2 mm/s, sufficiently high cooling rates are occurring creating a fine α + β basket weave structure, while no recrystallization of the prior β grains has been observed. Tensile properties were improved with strength consistently exceeding minimum wrought requirements. An additional stress relief cycle preserved the effect of deposition parameters on material properties. A strong anisotropy in elongation was associated with the slower travel speed where higher values were derived along the Z direction. While the faster travel speed exhibited isotropic properties. Strengthening of the deposits has been observed following a stress relief cycle.</description><subject>Additive manufacturing</subject><subject>Anisotropy</subject><subject>Cooling rate</subject><subject>Deposition</subject><subject>Elongation</subject><subject>Grains</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Material properties</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Microstructure characterization</subject><subject>Recrystallization</subject><subject>Stresses</subject><subject>Tensile properties</subject><subject>Ti-6Al-4V</subject><subject>Titanium base alloys</subject><subject>Travel speed</subject><subject>Velocity</subject><subject>Wire</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPwzAQhC0EEqXwBzhZ4pyyfsRxJC5VVR5SBZfC1XKTtXCUJsF2i_j3JCpnTiuN5tvdGUJuGSwYMHXfLPYR7YID0wsQk3ZGZkwXIpOlUOdkBiVnWQ6luCRXMTYAwCTkM_K6dg6rRHtHU7BHbGkcEGtqu5rGFDBGGrD16Gjf0fTpO7r1mVq2mfygrY0Y6LcPSGsc-uhTvCYXzrYRb_7mnLw_rrer52zz9vSyWm6ySkCZsh0TUEgoKp0XmmkHUovCOcmkBgS1U6IGYcuqyF3NZS21koCSK5RW7UZMzMndae8Q-q8DxmSa_hC68aThoMoceM7l6OInVxX6GAM6MwS_t-HHMDBTb6YxU29m6s2AmLQRejhBOP5_9BhMrDx2FdZj0CqZuvf_4b8krXO_</recordid><startdate>20180502</startdate><enddate>20180502</enddate><creator>Chekir, N.</creator><creator>Tian, Y.</creator><creator>Gauvin, R.</creator><creator>Brodusch, N.</creator><creator>Sixsmith, J.J.</creator><creator>Brochu, M.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0003-4326-7090</orcidid><orcidid>https://orcid.org/0000-0001-9238-9073</orcidid><orcidid>https://orcid.org/0000-0003-3181-3963</orcidid></search><sort><creationdate>20180502</creationdate><title>Effect of travel speed and stress relief on thin Ti-6Al-4V laser wire deposits</title><author>Chekir, N. ; Tian, Y. ; Gauvin, R. ; Brodusch, N. ; Sixsmith, J.J. ; Brochu, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-b1307407c857818f04837ff41480e06b63d03a9c75fd24d48640e426e4a6b07c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Additive manufacturing</topic><topic>Anisotropy</topic><topic>Cooling rate</topic><topic>Deposition</topic><topic>Elongation</topic><topic>Grains</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Material properties</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Microstructure characterization</topic><topic>Recrystallization</topic><topic>Stresses</topic><topic>Tensile properties</topic><topic>Ti-6Al-4V</topic><topic>Titanium base alloys</topic><topic>Travel speed</topic><topic>Velocity</topic><topic>Wire</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chekir, N.</creatorcontrib><creatorcontrib>Tian, Y.</creatorcontrib><creatorcontrib>Gauvin, R.</creatorcontrib><creatorcontrib>Brodusch, N.</creatorcontrib><creatorcontrib>Sixsmith, J.J.</creatorcontrib><creatorcontrib>Brochu, M.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chekir, N.</au><au>Tian, Y.</au><au>Gauvin, R.</au><au>Brodusch, N.</au><au>Sixsmith, J.J.</au><au>Brochu, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of travel speed and stress relief on thin Ti-6Al-4V laser wire deposits</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2018-05-02</date><risdate>2018</risdate><volume>724</volume><spage>335</spage><epage>347</epage><pages>335-347</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The effect of two travel speeds on thin Ti-6Al-4V buildups produced by Laser Wire Deposition (LWD) has been investigated. A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior β grains into horizontal prior β grains. It was associated with lower strength hardly meeting minimum wrought requirements as set by the AMS4911. On the other hand, it was shown that by increasing the travel speed to 7.2 mm/s, sufficiently high cooling rates are occurring creating a fine α + β basket weave structure, while no recrystallization of the prior β grains has been observed. Tensile properties were improved with strength consistently exceeding minimum wrought requirements. An additional stress relief cycle preserved the effect of deposition parameters on material properties. A strong anisotropy in elongation was associated with the slower travel speed where higher values were derived along the Z direction. While the faster travel speed exhibited isotropic properties. 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| identifier | ISSN: 0921-5093 |
| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2018-05, Vol.724, p.335-347 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Additive manufacturing Anisotropy Cooling rate Deposition Elongation Grains Heat treating Heat treatment Material properties Mechanical properties Microstructure Microstructure characterization Recrystallization Stresses Tensile properties Ti-6Al-4V Titanium base alloys Travel speed Velocity Wire |
| title | Effect of travel speed and stress relief on thin Ti-6Al-4V laser wire deposits |
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