Printing of NiTinol parts with characteristics respecting the general microstructural, compositional and mechanical requirements of bone replacement implants
NiTinol is considered to be an attractive candidate alloy for biomedical applications. The aim of this research was to obtain porous NiTinol parts that respected the general microstructural (having 30–80 vol% interconnected pores and pore sizes in the range of 100–600 μm), compositional (an impurity...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2022-04, Vol.839, p.142839, Article 142839 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Khanlari, Khashayar Shi, Qi Yan, Xingchen Hu, Ke Tan, Chong Kelly, Piaras Zhang, Wen Cao, Peng Wang, Xiaojian Liu, Xin |
| description | NiTinol is considered to be an attractive candidate alloy for biomedical applications. The aim of this research was to obtain porous NiTinol parts that respected the general microstructural (having 30–80 vol% interconnected pores and pore sizes in the range of 100–600 μm), compositional (an impurity content of less than 500 ppm) and mechanical (an elastic modulus close to that of cortical bone (10–20 GPa) or cancellous bone ( |
| doi_str_mv | 10.1016/j.msea.2022.142839 |
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•An LPBF technique was used to print parts from a pre-alloyed NiTinol powder•An optimum printing set leading to almost defect-free dense parts was identified•Effects of various heat treatments on the characteristics of parts were investigated•Porous NiTinol parts having general characteristics suitable for bone replacement implants were processed</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2022.142839</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Alloy powders ; Biomedical materials ; Bone replacement implants ; Composition ; Elongation ; Heat treating ; Heat treatment ; Intermetallic compounds ; LPBF printing ; Mechanical properties ; Microstructure ; Modulus of elasticity ; Nickel titanides ; NiTinol ; Phase transitions ; Porosity ; Porous metals ; Post-processing heat treatments ; Powder beds ; Printing ; Process parameters ; Shape memory alloys ; Thickness</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2022-04, Vol.839, p.142839, Article 142839</ispartof><rights>2022 Elsevier B.V.</rights><rights>Copyright Elsevier BV Apr 6, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-bb7ca336aae6fbe41672c443a2e9b657a2ec100370734b1e8bce4e7ce2fc0e793</citedby><cites>FETCH-LOGICAL-c328t-bb7ca336aae6fbe41672c443a2e9b657a2ec100370734b1e8bce4e7ce2fc0e793</cites><orcidid>0000-0001-6390-6852 ; 0000-0003-3205-1999</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2022.142839$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids></links><search><creatorcontrib>Khanlari, Khashayar</creatorcontrib><creatorcontrib>Shi, Qi</creatorcontrib><creatorcontrib>Yan, Xingchen</creatorcontrib><creatorcontrib>Hu, Ke</creatorcontrib><creatorcontrib>Tan, Chong</creatorcontrib><creatorcontrib>Kelly, Piaras</creatorcontrib><creatorcontrib>Zhang, Wen</creatorcontrib><creatorcontrib>Cao, Peng</creatorcontrib><creatorcontrib>Wang, Xiaojian</creatorcontrib><creatorcontrib>Liu, Xin</creatorcontrib><title>Printing of NiTinol parts with characteristics respecting the general microstructural, compositional and mechanical requirements of bone replacement implants</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>NiTinol is considered to be an attractive candidate alloy for biomedical applications. The aim of this research was to obtain porous NiTinol parts that respected the general microstructural (having 30–80 vol% interconnected pores and pore sizes in the range of 100–600 μm), compositional (an impurity content of less than 500 ppm) and mechanical (an elastic modulus close to that of cortical bone (10–20 GPa) or cancellous bone (<3 GPa), higher strength than 100 MPa at 2% strain and adequate fracture elongation of at least 8%) prerequisites of implants used in bone replacement applications. This was done by printing parts using a laser powder bed fusion technique and by employing a slightly Ni-rich pre-alloyed NiTinol powder having ∼55.9 wt% Ni in its composition. In the next setup, different post-printing heat treatments were employed to adjust the microstructural, compositional and mechanical characteristics of the printed parts step-by-step with the mentioned ones required for the bone replacement implants. The effects of different printing parameters and conducted heat treatment procedures on the microstructure, composition, phase transformation characteristics and mechanical properties of dense and porous printed parts were also systematically discussed and results were correlated together. The developed porous parts (with ∼33 vol% interconnected porosity and ∼600 μm pore width size) were printed using the processing parameters: laser power = 120 W, scanning velocity = 1100 mms−1, hatch spacing = 0.08 mm and layer thickness = 0.03 mm. Regardless of being heat treated or not, the parts generally respected the mentioned targeted properties.
•An LPBF technique was used to print parts from a pre-alloyed NiTinol powder•An optimum printing set leading to almost defect-free dense parts was identified•Effects of various heat treatments on the characteristics of parts were investigated•Porous NiTinol parts having general characteristics suitable for bone replacement implants were processed</description><subject>Alloy powders</subject><subject>Biomedical materials</subject><subject>Bone replacement implants</subject><subject>Composition</subject><subject>Elongation</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Intermetallic compounds</subject><subject>LPBF printing</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Modulus of elasticity</subject><subject>Nickel titanides</subject><subject>NiTinol</subject><subject>Phase transitions</subject><subject>Porosity</subject><subject>Porous metals</subject><subject>Post-processing heat treatments</subject><subject>Powder beds</subject><subject>Printing</subject><subject>Process parameters</subject><subject>Shape memory alloys</subject><subject>Thickness</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9Uclu2zAQJYoEqLP8QE8Eeq1cLpIoAb0UQdIECNoekjNBjUfxGBapkFSLfEz-tXScc0-zvjfLY-yTFGspZPt1t54SurUSSq1lrTrdf2Ar2Rld1b1uT9hK9EpWjej1R3aW0k4IIWvRrNjr70g-k3_iYeQ_6YF82PPZxZz4X8pbDlsXHWSMlDJB4hHTjPAGyFvkT-gxuj2fCGJIOS6QlxJ_4RCmOSTKFHwpO7_hExYuT1DCiM8LRZzQlzFl7hA8luS8d_CW5DQVvxQv2Ono9gkv3-05e7y5fri6re5__bi7-n5fgVZdrobBgNO6dQ7bccBatkZBXWunsB_axhQLUghthNH1ILEbAGs0gGoEgabX5-zzkXeO4XnBlO0uLLFsnqxqW9mYxnSidKlj1-HWFHG0c6TJxRcrhT3IYHf2IIM9yGCPMhTQtyMIy_5_CKNNQOgBN-UDkO0m0P_g_wAq8JZB</recordid><startdate>20220406</startdate><enddate>20220406</enddate><creator>Khanlari, Khashayar</creator><creator>Shi, Qi</creator><creator>Yan, Xingchen</creator><creator>Hu, Ke</creator><creator>Tan, Chong</creator><creator>Kelly, Piaras</creator><creator>Zhang, Wen</creator><creator>Cao, Peng</creator><creator>Wang, Xiaojian</creator><creator>Liu, Xin</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/0000-0001-6390-6852</orcidid><orcidid>https://orcid.org/0000-0003-3205-1999</orcidid></search><sort><creationdate>20220406</creationdate><title>Printing of NiTinol parts with characteristics respecting the general microstructural, compositional and mechanical requirements of bone replacement implants</title><author>Khanlari, Khashayar ; Shi, Qi ; Yan, Xingchen ; Hu, Ke ; Tan, Chong ; Kelly, Piaras ; Zhang, Wen ; Cao, Peng ; Wang, Xiaojian ; Liu, Xin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-bb7ca336aae6fbe41672c443a2e9b657a2ec100370734b1e8bce4e7ce2fc0e793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Alloy powders</topic><topic>Biomedical materials</topic><topic>Bone replacement implants</topic><topic>Composition</topic><topic>Elongation</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Intermetallic compounds</topic><topic>LPBF printing</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Modulus of elasticity</topic><topic>Nickel titanides</topic><topic>NiTinol</topic><topic>Phase transitions</topic><topic>Porosity</topic><topic>Porous metals</topic><topic>Post-processing heat treatments</topic><topic>Powder beds</topic><topic>Printing</topic><topic>Process parameters</topic><topic>Shape memory alloys</topic><topic>Thickness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khanlari, Khashayar</creatorcontrib><creatorcontrib>Shi, Qi</creatorcontrib><creatorcontrib>Yan, Xingchen</creatorcontrib><creatorcontrib>Hu, Ke</creatorcontrib><creatorcontrib>Tan, Chong</creatorcontrib><creatorcontrib>Kelly, Piaras</creatorcontrib><creatorcontrib>Zhang, Wen</creatorcontrib><creatorcontrib>Cao, Peng</creatorcontrib><creatorcontrib>Wang, Xiaojian</creatorcontrib><creatorcontrib>Liu, Xin</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>Khanlari, Khashayar</au><au>Shi, Qi</au><au>Yan, Xingchen</au><au>Hu, Ke</au><au>Tan, Chong</au><au>Kelly, Piaras</au><au>Zhang, Wen</au><au>Cao, Peng</au><au>Wang, Xiaojian</au><au>Liu, Xin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Printing of NiTinol parts with characteristics respecting the general microstructural, compositional and mechanical requirements of bone replacement implants</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2022-04-06</date><risdate>2022</risdate><volume>839</volume><spage>142839</spage><pages>142839-</pages><artnum>142839</artnum><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>NiTinol is considered to be an attractive candidate alloy for biomedical applications. The aim of this research was to obtain porous NiTinol parts that respected the general microstructural (having 30–80 vol% interconnected pores and pore sizes in the range of 100–600 μm), compositional (an impurity content of less than 500 ppm) and mechanical (an elastic modulus close to that of cortical bone (10–20 GPa) or cancellous bone (<3 GPa), higher strength than 100 MPa at 2% strain and adequate fracture elongation of at least 8%) prerequisites of implants used in bone replacement applications. This was done by printing parts using a laser powder bed fusion technique and by employing a slightly Ni-rich pre-alloyed NiTinol powder having ∼55.9 wt% Ni in its composition. In the next setup, different post-printing heat treatments were employed to adjust the microstructural, compositional and mechanical characteristics of the printed parts step-by-step with the mentioned ones required for the bone replacement implants. The effects of different printing parameters and conducted heat treatment procedures on the microstructure, composition, phase transformation characteristics and mechanical properties of dense and porous printed parts were also systematically discussed and results were correlated together. The developed porous parts (with ∼33 vol% interconnected porosity and ∼600 μm pore width size) were printed using the processing parameters: laser power = 120 W, scanning velocity = 1100 mms−1, hatch spacing = 0.08 mm and layer thickness = 0.03 mm. Regardless of being heat treated or not, the parts generally respected the mentioned targeted properties.
•An LPBF technique was used to print parts from a pre-alloyed NiTinol powder•An optimum printing set leading to almost defect-free dense parts was identified•Effects of various heat treatments on the characteristics of parts were investigated•Porous NiTinol parts having general characteristics suitable for bone replacement implants were processed</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2022.142839</doi><orcidid>https://orcid.org/0000-0001-6390-6852</orcidid><orcidid>https://orcid.org/0000-0003-3205-1999</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Alloy powders Biomedical materials Bone replacement implants Composition Elongation Heat treating Heat treatment Intermetallic compounds LPBF printing Mechanical properties Microstructure Modulus of elasticity Nickel titanides NiTinol Phase transitions Porosity Porous metals Post-processing heat treatments Powder beds Printing Process parameters Shape memory alloys Thickness |
| title | Printing of NiTinol parts with characteristics respecting the general microstructural, compositional and mechanical requirements of bone replacement implants |
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