Strong and ductile titanium via additive manufacturing under a reactive atmosphere

Dong，Yangping1,2; Wang，Dawei1,2; Li，Qizhen3; Luo，Xiaoping4; Zhang，Jian5; Prashanth，Konda Gokuldoss6,7,8; Wang，Pei9; Eckert，Jürgen7,10; Mädler，Lutz11,12; Okulov，Ilya V.11,12; Yan，Ming1,2

2023-03-01

10.1016/j.mtadv.2023.100347

Materials Today Advances   Impact Factor & Quartile

2590-0498

2590-0498

Pure metals tend to have a superior malleability compared to alloys. However, the applicability of pure metals is limited by their low strengths and hardness properties. In this study, strong and ductile pure Ti was synthesized via an approach involving powder modification and additive manufacturing (AM) under a reactive atmosphere. Specifically, pure Ti was processed by laser powder bed fusion in an environment containing a mixture of argon and nitrogen gases. In-situ high-energy synchrotron X-ray diffraction analysis reveals that in-situ nitrogen strengthening of the pure Ti occurs during the reactive AM of Ti. Furthermore, the presence of a nitrogen solid solution leads to the formation of high-strength pure Ti (yield strength of ∼979 MPa and ultimate tensile strength of ∼1058 MPa, respectively). This material exhibits excellent uniform elongation (11%) due to strong work hardening caused by the interaction of interstitial elements and submicrostructure. The proposed reactive AM approach paves the way for in-situ strengthening of pure metals and alloys.

Additive manufacturing Laser powder bed fusion Pure titanium Reactive atmosphere

SCI

English

First ; Corresponding

National Natural Science Foundation of China["51971108","52271032"] ; Natural Science Foundation of Guangdong Province[2020A1515011373]

Materials Science

Materials Science, Multidisciplinary

WOS:000924652100001

ELSEVIER

2-s2.0-85146642598

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Jiaxing Research Institute,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Biomedical Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Nanjing Stomatological Hospital Medical School of Nanjing University,Nanjing,210008,China
5.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Jiangnan University,Wuxi,214122,China
6.Department of Mechanical and Industrial Engineering,Tallinn University of Technology,Tallinn,Ehitajate Tee 5,19086,Estonia
7.Erich Schmid Institute of Materials Science,Austrian Academy of Sciences,Leoben,Jahnstraße 12,8700,Austria
8.CBCMT,School of Engineering,Vellore Institute of Technology,Vellore,Tamil Nadu,632014,India
9.Additive Manufacturing Institute,Shenzhen University,Shenzhen,Nanhai Street 3688,518060,China
10.Department of Materials Science,Chair of Materials Physics,Montanuniversität Leoben,Leoben,Jahnstraße 12,8700,Austria
11.Faculty of Production Engineering,University of Bremen,Bremen,Badgasteiner Str. 1,28359,Germany
12.Leibniz Institute for Materials Engineering - IWT,Bremen,Badgasteiner Str. 3,28359,Germany

Dong，Yangping,Wang，Dawei,Li，Qizhen,et al. Strong and ductile titanium via additive manufacturing under a reactive atmosphere[J]. Materials Today Advances,2023,17.

Dong，Yangping.,Wang，Dawei.,Li，Qizhen.,Luo，Xiaoping.,Zhang，Jian.,...&Yan，Ming.(2023).Strong and ductile titanium via additive manufacturing under a reactive atmosphere.Materials Today Advances,17.

Dong，Yangping,et al."Strong and ductile titanium via additive manufacturing under a reactive atmosphere".Materials Today Advances 17(2023).