Alternative Title

Simulation of Cooling Rate Effects on Ti-6Al-4V Microstructure Tailoring in Direct Laser Deposition


Transient temperature history is vital in direct laser deposition (DLD) because it reveals the cooling rate at specific temperatures, which directly relates to phase transformation and types of microstructure formed in deposit. FEA simulation was employed to study the transient temperature history and cooling rate at different experimental setups in Ti-48Al-2Cr-2Nb DLD process. In this paper, an innovative model was described, which combines a moving Gaussian distribution heat source and element birth and death technology in ANSYS, help to analysis cooling rate control method and guide crack-free deposits build process.

Meeting Name

27th Annual International Solid Freeform Fabrication Symposium (2016: Aug. 8-10, Austin, TX)


Materials Science and Engineering

Second Department

Mechanical and Aerospace Engineering

Research Center/Lab(s)

Intelligent Systems Center


This project was supported by The Boeing Company through the Center for Aerospace Manufacturing Technologies (CAMT), National Science Foundation Grant # CMMI-1547042, and the Intelligent Systems Center (ISC) at Missouri S&T. Their financial support is greatly appreciated.

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type




Publication Date

10 Aug 2016