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The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes

Lintao Zhang, Will Harrison Orcid Logo, Mazher Yar, Steve Brown, Nicholas Lavery Orcid Logo

Journal of Materials Research and Technology, Volume: 15, Pages: 1830 - 1843

Swansea University Authors: Lintao Zhang, Will Harrison Orcid Logo, Mazher Yar, Steve Brown, Nicholas Lavery Orcid Logo

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DOI (Published version): 10.1016/j.jmrt.2021.09.029

Abstract

This work aims to evaluate the use of miniaturized tensile specimen (MTS) to characterise the mechanical properties of alloys developed through rapid alloy prototyping (RAP), where high throughput tests are required on relatively small amounts of material. Tensile tests were conducted at a variety o...

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Published in: Journal of Materials Research and Technology
ISSN: 2238-7854
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa57901
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Tensile tests were conducted at a variety of strain rates and with increasingly smaller specimen sizes, ranging from larger specimens conforming to ASTM/ISO standards, down to small non-standard specimens. The gauge lengths of the specimens ranged from 50-80 mm for the standard specimens down to 5-10 mm for the non-standard specimens. To generalize the non-standard MTS designs, three alloys, DP800, DP600 and 316L stainless steel, were adopted. The results obtained from non-standard designs were compared with those from standard designs. The results show that non-standard designs can give repeatable results for yield strength (YS), ultimate tensile strength (UTS) and uniform elongation (eU). The maximum result differences of YS, UTS and eU are 7.37%, 7.71% and 11.9%, respectively, for DP alloys comparing standard and non-standard dimensions. These values are 13.56%, 14.03% and 19.5%, respectively 316L steel. The total elongation (ef) increases as the specimen dimension decreases. The geometrically dependent constants (n) are 0.2, 0.31 and 0.11 for DP800, DP600 and 316L, respectively. However, the Young&#x2019;s modulus is hard to determine precisely from the miniaturized designs. The conclusion from this work is that miniaturized tensile testing can be used with confidence as a high throughput means of predicting standard mechanical properties across a range of steels.</abstract><type>Journal Article</type><journal>Journal of Materials Research and Technology</journal><volume>15</volume><journalNumber/><paginationStart>1830</paginationStart><paginationEnd>1843</paginationEnd><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2238-7854</issnPrint><issnElectronic/><keywords>Miniaturized mechanical test, Miniaturized tensile test (MTT). miniaturized tensile specimen (MTS). Specimen size effects. Slimness ratio</keywords><publishedDay>1</publishedDay><publishedMonth>11</publishedMonth><publishedYear>2021</publishedYear><publishedDate>2021-11-01</publishedDate><doi>10.1016/j.jmrt.2021.09.029</doi><url/><notes/><college>COLLEGE NANME</college><department>Gower College</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>GWCO</DepartmentCode><institution>Swansea University</institution><apcterm/><funders>The authors would like to thank EPSRC for funding the Rapid Alloy Prototyping Prosperity Partnership project (EP/S005218/1 - ACCELERATING ALLOY DEVELOPMENT THROUGH DELIVERING NOVEL PROTOTYPING SOLUTIONS) which made this work possible. 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spelling 2024-05-20T10:50:30.7084172 v2 57901 2021-09-15 The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes 2e060f2328383b15f607194b4dc0abef Lintao Zhang Lintao Zhang true false dae59f76fa4f63123aa028abfcd2b07a 0000-0002-0380-7075 Will Harrison Will Harrison true false 275ba20bb50f9c26e0d0f0aa69d0c7e4 Mazher Yar Mazher Yar true false 07a865adc76376646bc6c03a69ce35a9 Steve Brown Steve Brown true false 9f102ff59824fd4f7ce3d40144304395 0000-0003-0953-5936 Nicholas Lavery Nicholas Lavery true false 2021-09-15 GWCO This work aims to evaluate the use of miniaturized tensile specimen (MTS) to characterise the mechanical properties of alloys developed through rapid alloy prototyping (RAP), where high throughput tests are required on relatively small amounts of material. Tensile tests were conducted at a variety of strain rates and with increasingly smaller specimen sizes, ranging from larger specimens conforming to ASTM/ISO standards, down to small non-standard specimens. The gauge lengths of the specimens ranged from 50-80 mm for the standard specimens down to 5-10 mm for the non-standard specimens. To generalize the non-standard MTS designs, three alloys, DP800, DP600 and 316L stainless steel, were adopted. The results obtained from non-standard designs were compared with those from standard designs. The results show that non-standard designs can give repeatable results for yield strength (YS), ultimate tensile strength (UTS) and uniform elongation (eU). The maximum result differences of YS, UTS and eU are 7.37%, 7.71% and 11.9%, respectively, for DP alloys comparing standard and non-standard dimensions. These values are 13.56%, 14.03% and 19.5%, respectively 316L steel. The total elongation (ef) increases as the specimen dimension decreases. The geometrically dependent constants (n) are 0.2, 0.31 and 0.11 for DP800, DP600 and 316L, respectively. However, the Young’s modulus is hard to determine precisely from the miniaturized designs. The conclusion from this work is that miniaturized tensile testing can be used with confidence as a high throughput means of predicting standard mechanical properties across a range of steels. Journal Article Journal of Materials Research and Technology 15 1830 1843 Elsevier BV 2238-7854 Miniaturized mechanical test, Miniaturized tensile test (MTT). miniaturized tensile specimen (MTS). Specimen size effects. Slimness ratio 1 11 2021 2021-11-01 10.1016/j.jmrt.2021.09.029 COLLEGE NANME Gower College COLLEGE CODE GWCO Swansea University The authors would like to thank EPSRC for funding the Rapid Alloy Prototyping Prosperity Partnership project (EP/S005218/1 - ACCELERATING ALLOY DEVELOPMENT THROUGH DELIVERING NOVEL PROTOTYPING SOLUTIONS) which made this work possible. The authors would also like to thank the Welsh Government, European Regional Development Fund (ERDF) and SMART Expertise Wales for funding Materials Advanced Characterisation Centre (MACH1) where the work was carried out. 2024-05-20T10:50:30.7084172 2021-09-15T16:05:46.1828658 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Lintao Zhang 1 Will Harrison 0000-0002-0380-7075 2 Mazher Yar 3 Steve Brown 4 Nicholas Lavery 0000-0003-0953-5936 5 57901__21008__d9318b08a8f042b3876a50878691109e.pdf 57901 (3).pdf 2021-09-27T10:30:52.8599398 Output 2997727 application/pdf Version of Record true © 2021 The Authors. This is an open access article under the CC BY-NC-ND license true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
spellingShingle The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
Lintao Zhang
Will Harrison
Mazher Yar
Steve Brown
Nicholas Lavery
title_short The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
title_full The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
title_fullStr The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
title_full_unstemmed The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
title_sort The development of miniature tensile specimens with non-standard aspect and slimness ratios for rapid alloy prototyping processes
author_id_str_mv 2e060f2328383b15f607194b4dc0abef
dae59f76fa4f63123aa028abfcd2b07a
275ba20bb50f9c26e0d0f0aa69d0c7e4
07a865adc76376646bc6c03a69ce35a9
9f102ff59824fd4f7ce3d40144304395
author_id_fullname_str_mv 2e060f2328383b15f607194b4dc0abef_***_Lintao Zhang
dae59f76fa4f63123aa028abfcd2b07a_***_Will Harrison
275ba20bb50f9c26e0d0f0aa69d0c7e4_***_Mazher Yar
07a865adc76376646bc6c03a69ce35a9_***_Steve Brown
9f102ff59824fd4f7ce3d40144304395_***_Nicholas Lavery
author Lintao Zhang
Will Harrison
Mazher Yar
Steve Brown
Nicholas Lavery
author2 Lintao Zhang
Will Harrison
Mazher Yar
Steve Brown
Nicholas Lavery
format Journal article
container_title Journal of Materials Research and Technology
container_volume 15
container_start_page 1830
publishDate 2021
institution Swansea University
issn 2238-7854
doi_str_mv 10.1016/j.jmrt.2021.09.029
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description This work aims to evaluate the use of miniaturized tensile specimen (MTS) to characterise the mechanical properties of alloys developed through rapid alloy prototyping (RAP), where high throughput tests are required on relatively small amounts of material. Tensile tests were conducted at a variety of strain rates and with increasingly smaller specimen sizes, ranging from larger specimens conforming to ASTM/ISO standards, down to small non-standard specimens. The gauge lengths of the specimens ranged from 50-80 mm for the standard specimens down to 5-10 mm for the non-standard specimens. To generalize the non-standard MTS designs, three alloys, DP800, DP600 and 316L stainless steel, were adopted. The results obtained from non-standard designs were compared with those from standard designs. The results show that non-standard designs can give repeatable results for yield strength (YS), ultimate tensile strength (UTS) and uniform elongation (eU). The maximum result differences of YS, UTS and eU are 7.37%, 7.71% and 11.9%, respectively, for DP alloys comparing standard and non-standard dimensions. These values are 13.56%, 14.03% and 19.5%, respectively 316L steel. The total elongation (ef) increases as the specimen dimension decreases. The geometrically dependent constants (n) are 0.2, 0.31 and 0.11 for DP800, DP600 and 316L, respectively. However, the Young’s modulus is hard to determine precisely from the miniaturized designs. The conclusion from this work is that miniaturized tensile testing can be used with confidence as a high throughput means of predicting standard mechanical properties across a range of steels.
published_date 2021-11-01T02:31:52Z
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score 11.064692

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