Comparative study about the properties of in situ synthesized TiN/Ti6Al4V sandwich structure materials by selective laser melting and laser directed energy deposition

Zhiheng Tai; Vyacheslav Trofimov; Di Wang; Yunmian Xiao; Jiale Lv; Yongqiang Yang

doi:10.1117/12.3014578

18 June 2024 Comparative study about the properties of in situ synthesized TiN/Ti6Al4V sandwich structure materials by selective laser melting and laser directed energy deposition

Zhiheng Tai, Vyacheslav Trofimov, Di Wang, Yunmian Xiao, Jiale Lv, Yongqiang Yang

Author Affiliations +

Proceedings Volume 12995, 3D Printed Optics and Additive Photonic Manufacturing IV; 129950C (2024) https://doi.org/10.1117/12.3014578
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Laser Additive Manufacturing (LAM) offers a versatile approach to fabricate composite materials, including heterogeneous and transition materials, characterized by exceptional mechanical properties. In this study, TiN/Ti6Al4V sandwich structural materials were prepared by the Selective Laser Melting (SLM) and Laser Directed Energy Deposition (LDED) processes, each in distinct environments featuring varying nitrogen-to-argon ratios. We conducted a comprehensive investigation, comparing the elemental diffusion, in-situ synthesis, microstructural characteristics, and mechanical properties of TiN/Ti6Al4V sandwich structural materials produced via these two processes. In both SLM and LDED processes, the in-situ synthesis of TiN from titanium and nitrogen atoms yielded robust metallurgical bonds with the Ti6Al4V matrix. The superior performance of TiN/Ti6Al4V sandwich structural materials achieved through LAM results from their laminar structure and the reinforcing effect of internal ceramic particles. Leveraging the combination of soft and hard layers within the sandwich structure, the tensile strength significantly surpasses that of homogeneous materials. Specifically, the sandwich structure materials synthesized through SLM and LDED attained impressive tensile strengths of 1303.1 MPa and 1155.1 MPa, respectively, alongside plastic deformations of 8.9% and 3.7%. This study highlights the potential of employing LAM in conjunction with controlled reactive atmospheres to fabricate new periodic heterogeneous materials in-situ, characterized by outstanding mechanical properties.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhiheng Tai, Vyacheslav Trofimov, Di Wang, Yunmian Xiao, Jiale Lv, and Yongqiang Yang "Comparative study about the properties of in situ synthesized TiN/Ti6Al4V sandwich structure materials by selective laser melting and laser directed energy deposition", Proc. SPIE 12995, 3D Printed Optics and Additive Photonic Manufacturing IV, 129950C (18 June 2024); https://doi.org/10.1117/12.3014578

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available