Composition design method of Al-Cu alloy for laser powder bed fusion - Details

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Abstract：

In　this　study,　Al-Cu　alloy　suitable　for　laser　powder　bed　fusion　(LPBF)　is　rapidly　developed　through　casting　and　laser　remelting.　The　microstructure　of　as-cast　Al-Cu　alloy　is　consisted　of　equiaxed　grains,　and　it　was　significantly　refined　after　remelting.　The　Vickers　hardness　in　the　remelted　zone　improved　by　approximately　33.7%　compared　with　that　of　as-cast　Al-Cu　alloy.　The　effects　of　different　element　content　on　Al-Cu-Mg-Zr　alloy　were　analyzed,　and　optimum　alloy　composition　was　obtained　with　Al-5Cu-2Mg-1Zr-0.3Mn-0.15Ti　through　comparing　microstructure,　the　hardness　and　other　properties　after　remelting.　The　nano-indentation　hardness　and　Young＇s　modulus　of　remelted　Al-5Cu-2Mg-1Zr-0.3Mn-0.15Ti　alloys　were　1.86　and　86.7　GPa,　respectively.　The　microstructure　was　dense　without　obvious　crack　after　LPBF　forming,　and　the　tensile　strength,　yield　strength　and　elongation　values　reach　483　MPa,　365　MPa　and　13.4%　after　solution　treatment.　©　2022　Elsevier　B.V.

Keyword：

Elastic moduli Copper alloys Binary alloys Manganese alloys Aluminum alloys Tensile strength Textures Remelting Zircaloy Titanium alloys Vickers hardness Magnesium alloys

Author Community：

[ 1 ] [Lu, Renyi]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 2 ] [Zhang, Shuanglei]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 3 ] [Li, Xiaofeng]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 4 ] [Li, Xiaofeng]The State Key Laboratory of Powder Metallurgy, Central South University, Changsha; 410083, China
[ 5 ] [Yan, Hao]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 6 ] [Yi, Denghao]Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Wang, Jianhong]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 8 ] [Wang, Jianhong]Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne; VIC; 3000, Australia
[ 9 ] [Yang, Xiaohui]Instrumental Analysis Center, Taiyuan University of Science and Technology, Taiyuan; 030024, China
[ 10 ] [Liu, Bin]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 11 ] [Xu, Hong]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China
[ 12 ] [Bai, Peikang]School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China

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Source ：

Journal of Alloys and Compounds

ISSN： 0925-8388

Year： 2022

Volume： 914

6 . 2

JCR@2022

6 . 2 0 0

JCR@2022

ESI Discipline： MATERIALS SCIENCE;

ESI HC Threshold：66

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 9

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 4

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