Deformation microstructures and strengthening mechanisms for the wire+arc additively manufactured Al-Mg4.5Mn alloy with inter-layer rolling

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dc.contributor.author Gu, Jianglong
dc.contributor.author Wang, Xiaoshu
dc.contributor.author Bai, Jing
dc.contributor.author Ding, Jialuo
dc.contributor.author Williams, Stewart W.
dc.contributor.author Zhai, Yuchun
dc.contributor.author Liu, Kun
dc.date.accessioned 2017-12-20T16:07:43Z
dc.date.available 2017-12-20T16:07:43Z
dc.date.issued 2017-11-29
dc.identifier.citation Jianglong Gu, Xiaoshu Wang, Jing Bai, et. al. Deformation microstructures and strengthening mechanisms for the wire+arc additively manufactured Al-Mg4.5Mn alloy with inter-layer rolling, Materials Science and Engineering: A, Volume 712, 17 January 2018, Pages 292-301 en_UK
dc.identifier.issn 0921-5093
dc.identifier.uri https://doi.org/10.1016/j.msea.2017.11.113
dc.identifier.uri http://dspace.lib.cranfield.ac.uk:8080/handle/1826/12811
dc.description.abstract Applying inter-layer rolling to the wire+arc additively manufacturing (WAAM) process with increasing loads of 15 kN, 30 kN and 45 kN, achieves excellent mechanical properties for 5087 (Al-Mg4.5-Mn) alloys. Compared with the as-deposited alloy, the average micro hardness, yield stress and ultimate tensile strength of 45 kN rolled alloys reached to 107.2 HV, 240 MPa and 344 MPa, which were enhanced by 40%, 69% and 18.2%, respectively. Primary coarse grain structures were found to become greatly refined with an evident rolling texture after deformation. The strengthening mechanisms mainly are deformation strengthening, grain refinement, and solution strengthening. Meanwhile, the elongation of rolled alloys stays over 20%. The plasticity was not obviously diminished compared with the as-deposited alloy. This is two times greater than the commercial wrought Al-Mg alloy with similar composition. The excellent plasticity may be chiefly due to grain refinement, pores closure and reduction, and grain recrystallization during the WAAM re-heating process. The combination process of rolling deformation with WAAM deposition is an effective technique in refining microstructure and improving mechanical properties for AM aluminum alloys. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Wire+arc additive manufacturing en_UK
dc.subject Rolling en_UK
dc.subject Aluminum alloy en_UK
dc.subject Microstructure en_UK
dc.subject Mechanical properties en_UK
dc.title Deformation microstructures and strengthening mechanisms for the wire+arc additively manufactured Al-Mg4.5Mn alloy with inter-layer rolling en_UK
dc.type Article en_UK


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