Controlling grain nucleation and morphology by laser beam shaping in metal additive manufacturing

Controlling grain nucleation and morphology by laser beam shaping in metal additive manufacturing

Gaussian laser intensity profiles are standard in laser-based metal additive manufacturing, although recent work in single-layer melt tracks showed that beam shaping could offer a feasible route towards microstructural control. Since thermal cycling and grain orientation templating in multilayer bui...

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Bibliographic Details
Main Authors: Tien T. Roehling, Rongpei Shi, Saad A. Khairallah, John D. Roehling, Gabe M. Guss, Joseph T. McKeown, Manyalibo J. Matthews
Format: Article
Language:English
Published: Elsevier 2020-10-01
Series:Materials & Design
Subjects:
Laser powder bed fusion
Beam shape
Microstructure control
Solidification
Stainless steel
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127520306067

Internet

http://www.sciencedirect.com/science/article/pii/S0264127520306067

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