Strength and ductility optimization of laser additive manufactured metastable β titanium alloy by tuning α phase by post heat treatment
The metastable β titanium alloy Ti–5Mo–5V–8Cr–3Al (TB2) was fabricated by laser melting deposition (LMD). α phase was tuned by post heat treatment (PHT) in order to obtain a good combination of strength and ductility of laser melting deposited (LMDed) TB2 alloy. This study demonstrated that TB2 allo...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2022-01, Vol.831, p.142265, Article 142265 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Pang, Xiaotong Xiong, Zhihui Yao, Chengwu Sun, Junhao Misra, R.D.K. Li, Zhuguo |
| description | The metastable β titanium alloy Ti–5Mo–5V–8Cr–3Al (TB2) was fabricated by laser melting deposition (LMD). α phase was tuned by post heat treatment (PHT) in order to obtain a good combination of strength and ductility of laser melting deposited (LMDed) TB2 alloy. This study demonstrated that TB2 alloy exhibited fully equiaxed β phase after LMD, which possessed good ductility (≈18.2%) with ultimate tensile strength (σUTS) of 811 MPa. The β solution plus aging treatments resulted in higher strength (σUTS ≈ 1136–1312 MPa) in comparison with the (α+β) solution plus aging treatments (σUTS ≈ 1037 MPa) because of higher-density acicular α phase with finer size (width∼200 nm). Two-step aging resulted in improved ductility (≈9.8–12.9%) in comparison with the one-step aging (≈2.0%) due to coarsening of α phase. Finally, β solution plus two-step aging was proved to be appropriate for LMDed TB2 alloy to achieve a good combination of strength (σUTS ≈ 1136 MPa) and ductility (≈9.8%).
•The metastable β-Ti TB2 alloy without obvious elemental segregation was obtained by LMD.•A wide range of strength and ductility can be obtained by controlling α precipitation behavior in LMDed TB2 alloy by PHT.•β-Solution plus two-step aging treatments enable LMDed TB2 alloy to exhibit good combination of strength and ductility. |
| doi_str_mv | 10.1016/j.msea.2021.142265 |
| format | Article |
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•The metastable β-Ti TB2 alloy without obvious elemental segregation was obtained by LMD.•A wide range of strength and ductility can be obtained by controlling α precipitation behavior in LMDed TB2 alloy by PHT.•β-Solution plus two-step aging treatments enable LMDed TB2 alloy to exhibit good combination of strength and ductility.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2021.142265</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Aging ; Aging (metallurgy) ; Beta phase ; Ductility ; Heat treatment ; Laser additive manufacturing ; Laser beam melting ; Lasers ; Mechanical behavior ; Microstructure ; Optimization ; Titanium alloy ; Titanium alloys ; Titanium base alloys ; Ultimate tensile strength</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2022-01, Vol.831, p.142265, Article 142265</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jan 13, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c243t-d1ac7458cf6f112f7294c0af1e7c5cb82587361e51a9a2146552d673769105d63</citedby><cites>FETCH-LOGICAL-c243t-d1ac7458cf6f112f7294c0af1e7c5cb82587361e51a9a2146552d673769105d63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S092150932101529X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Pang, Xiaotong</creatorcontrib><creatorcontrib>Xiong, Zhihui</creatorcontrib><creatorcontrib>Yao, Chengwu</creatorcontrib><creatorcontrib>Sun, Junhao</creatorcontrib><creatorcontrib>Misra, R.D.K.</creatorcontrib><creatorcontrib>Li, Zhuguo</creatorcontrib><title>Strength and ductility optimization of laser additive manufactured metastable β titanium alloy by tuning α phase by post heat treatment</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>The metastable β titanium alloy Ti–5Mo–5V–8Cr–3Al (TB2) was fabricated by laser melting deposition (LMD). α phase was tuned by post heat treatment (PHT) in order to obtain a good combination of strength and ductility of laser melting deposited (LMDed) TB2 alloy. This study demonstrated that TB2 alloy exhibited fully equiaxed β phase after LMD, which possessed good ductility (≈18.2%) with ultimate tensile strength (σUTS) of 811 MPa. The β solution plus aging treatments resulted in higher strength (σUTS ≈ 1136–1312 MPa) in comparison with the (α+β) solution plus aging treatments (σUTS ≈ 1037 MPa) because of higher-density acicular α phase with finer size (width∼200 nm). Two-step aging resulted in improved ductility (≈9.8–12.9%) in comparison with the one-step aging (≈2.0%) due to coarsening of α phase. Finally, β solution plus two-step aging was proved to be appropriate for LMDed TB2 alloy to achieve a good combination of strength (σUTS ≈ 1136 MPa) and ductility (≈9.8%).
•The metastable β-Ti TB2 alloy without obvious elemental segregation was obtained by LMD.•A wide range of strength and ductility can be obtained by controlling α precipitation behavior in LMDed TB2 alloy by PHT.•β-Solution plus two-step aging treatments enable LMDed TB2 alloy to exhibit good combination of strength and ductility.</description><subject>Aging</subject><subject>Aging (metallurgy)</subject><subject>Beta phase</subject><subject>Ductility</subject><subject>Heat treatment</subject><subject>Laser additive manufacturing</subject><subject>Laser beam melting</subject><subject>Lasers</subject><subject>Mechanical behavior</subject><subject>Microstructure</subject><subject>Optimization</subject><subject>Titanium alloy</subject><subject>Titanium alloys</subject><subject>Titanium base alloys</subject><subject>Ultimate tensile strength</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kM1q3DAQx0VJodu0L9CTIGdvJdmS19BLCW0aCOSQ5CxmpXFWiy050jiwfYM-TvsgeaZ42Z5zGhj-HzM_xr5IsZZCmq_79VgQ1koouZaNUka_Yyu5aeuq6WpzxlaiU7LSoqs_sI-l7IUQshF6xf7cUcb4SDsO0XM_OwpDoANPE4Ux_AYKKfLU8wEKZg7eBwrPyEeIcw-O5oyej0hQCLYD8pd_nAJBDPPIYRjSgW8PnOYY4iN_-cun3RJzXE2pEN8hEF_qgUaM9Im972Eo-Pn_PGcPP3_cX_6qbm6vri-_31RONTVVXoJrG71xvemlVH2rusYJ6CW2TrvtRunlayNRS-hAycZorbxp69Z0Umhv6nN2ccqdcnqasZDdpznHpdIqo-rGCKXFolInlcuplIy9nXIYIR-sFPaI3O7tEbk9Ircn5Ivp28mEy_3PAbMtLmB06ENGR9an8Jb9FZTVjWg</recordid><startdate>20220113</startdate><enddate>20220113</enddate><creator>Pang, Xiaotong</creator><creator>Xiong, Zhihui</creator><creator>Yao, Chengwu</creator><creator>Sun, Junhao</creator><creator>Misra, R.D.K.</creator><creator>Li, Zhuguo</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></search><sort><creationdate>20220113</creationdate><title>Strength and ductility optimization of laser additive manufactured metastable β titanium alloy by tuning α phase by post heat treatment</title><author>Pang, Xiaotong ; Xiong, Zhihui ; Yao, Chengwu ; Sun, Junhao ; Misra, R.D.K. ; Li, Zhuguo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c243t-d1ac7458cf6f112f7294c0af1e7c5cb82587361e51a9a2146552d673769105d63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Aging</topic><topic>Aging (metallurgy)</topic><topic>Beta phase</topic><topic>Ductility</topic><topic>Heat treatment</topic><topic>Laser additive manufacturing</topic><topic>Laser beam melting</topic><topic>Lasers</topic><topic>Mechanical behavior</topic><topic>Microstructure</topic><topic>Optimization</topic><topic>Titanium alloy</topic><topic>Titanium alloys</topic><topic>Titanium base alloys</topic><topic>Ultimate tensile strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pang, Xiaotong</creatorcontrib><creatorcontrib>Xiong, Zhihui</creatorcontrib><creatorcontrib>Yao, Chengwu</creatorcontrib><creatorcontrib>Sun, Junhao</creatorcontrib><creatorcontrib>Misra, R.D.K.</creatorcontrib><creatorcontrib>Li, Zhuguo</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>Pang, Xiaotong</au><au>Xiong, Zhihui</au><au>Yao, Chengwu</au><au>Sun, Junhao</au><au>Misra, R.D.K.</au><au>Li, Zhuguo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strength and ductility optimization of laser additive manufactured metastable β titanium alloy by tuning α phase by post heat treatment</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2022-01-13</date><risdate>2022</risdate><volume>831</volume><spage>142265</spage><pages>142265-</pages><artnum>142265</artnum><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The metastable β titanium alloy Ti–5Mo–5V–8Cr–3Al (TB2) was fabricated by laser melting deposition (LMD). α phase was tuned by post heat treatment (PHT) in order to obtain a good combination of strength and ductility of laser melting deposited (LMDed) TB2 alloy. This study demonstrated that TB2 alloy exhibited fully equiaxed β phase after LMD, which possessed good ductility (≈18.2%) with ultimate tensile strength (σUTS) of 811 MPa. The β solution plus aging treatments resulted in higher strength (σUTS ≈ 1136–1312 MPa) in comparison with the (α+β) solution plus aging treatments (σUTS ≈ 1037 MPa) because of higher-density acicular α phase with finer size (width∼200 nm). Two-step aging resulted in improved ductility (≈9.8–12.9%) in comparison with the one-step aging (≈2.0%) due to coarsening of α phase. Finally, β solution plus two-step aging was proved to be appropriate for LMDed TB2 alloy to achieve a good combination of strength (σUTS ≈ 1136 MPa) and ductility (≈9.8%).
•The metastable β-Ti TB2 alloy without obvious elemental segregation was obtained by LMD.•A wide range of strength and ductility can be obtained by controlling α precipitation behavior in LMDed TB2 alloy by PHT.•β-Solution plus two-step aging treatments enable LMDed TB2 alloy to exhibit good combination of strength and ductility.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2021.142265</doi></addata></record> |
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| subjects | Aging Aging (metallurgy) Beta phase Ductility Heat treatment Laser additive manufacturing Laser beam melting Lasers Mechanical behavior Microstructure Optimization Titanium alloy Titanium alloys Titanium base alloys Ultimate tensile strength |
| title | Strength and ductility optimization of laser additive manufactured metastable β titanium alloy by tuning α phase by post heat treatment |
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