Selective laser melting of titanium matrix composites: An in-depth analysis of materials, microstructures, defects, and mechanical properties
Jun Fang,
Yong Chai Tan,
Vin Cent Tai,
Shamini Janasekaran,
Chia Ching Kee,
Dongsheng Wang,
Youwen Yang
Affiliations
Jun Fang
School of Mechanical Engineering, Tongling University, Tongling, AnHui, 244100, China; Center for Modelling and Simulation, Faculty of Engineering, Built Environment and Information Technology, SEGi University, Jalan Teknologi, Kota Damansara, 47810, Petaling Jaya, Selangor Darul Ehsan, Malaysia; Key Laboratory of Additive Manufacturing of Tongling City, Tongling University, Tongling, AnHui, 244100, China
Yong Chai Tan
Center for Modelling and Simulation, Faculty of Engineering, Built Environment and Information Technology, SEGi University, Jalan Teknologi, Kota Damansara, 47810, Petaling Jaya, Selangor Darul Ehsan, Malaysia; Corresponding author.
Vin Cent Tai
Center for Modelling and Simulation, Faculty of Engineering, Built Environment and Information Technology, SEGi University, Jalan Teknologi, Kota Damansara, 47810, Petaling Jaya, Selangor Darul Ehsan, Malaysia
Shamini Janasekaran
Center for Modelling and Simulation, Faculty of Engineering, Built Environment and Information Technology, SEGi University, Jalan Teknologi, Kota Damansara, 47810, Petaling Jaya, Selangor Darul Ehsan, Malaysia
Chia Ching Kee
Center for Modelling and Simulation, Faculty of Engineering, Built Environment and Information Technology, SEGi University, Jalan Teknologi, Kota Damansara, 47810, Petaling Jaya, Selangor Darul Ehsan, Malaysia
Dongsheng Wang
School of Mechanical Engineering, Tongling University, Tongling, AnHui, 244100, China; Key Laboratory of Additive Manufacturing of Tongling City, Tongling University, Tongling, AnHui, 244100, China; Corresponding author. School of Mechanical Engineering, Tongling University, Tongling, AnHui, 244100, China.
Youwen Yang
Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China
This paper provides an in-depth review of the advancements and challenges associated with Titanium Matrix Composites (TMCs) in Selective Laser Melting (SLM). Material selection, SLM processing parameters, and their influence on the microstructure and properties of TMCs are discussed. The relationship between processing parameters, material characteristics, and the development of defects such as balling, porosity, and cracking is examined. Critical factors influencing the evolution of microstructure and defect formation in TMCs processed by SLM are highlighted. Strengthening mechanisms such as dislocation movements, grain refinement, the Orowan process, and load-bearing capacity are analyzed, and their roles in enhancing hardness, tensile strength, corrosion resistance, and wear resistance are explored. It is indicated by key findings that less than 5 % reinforcement content by volume can significantly enhance mechanical properties, achieving maximum hardness values of approximately 1000 HV and tensile strength close to 1500 MPa. However, this improvement is accompanied by a notable decrease in elongation. The importance of optimizing SLM parameters such as laser power, scan speed, hatch distance, layer thickness, and particle contents to minimize defects and enhance material performance is underscored. Existing research gaps in defect management and material distribution are identified. Future research directions on improving TMCs performance through advanced SLM techniques are suggested.
