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Microstructural Study and Thermal Modeling of Laser Formed Ti-6Al-4V

Published online by Cambridge University Press:  17 March 2011

S.M. Kelly  and
S.L. Kampe
S.M. Kelly
Affiliation:
Materials Science and Engineering Department, Virginia Tech, Blacksburg, VA 24061-0237
S.L. Kampe
Affiliation:
Materials Science and Engineering Department, Virginia Tech, Blacksburg, VA 24061-0237
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Abstract

A two-dimensional thermal model for a commercial laser additive manufacturing (LAM) process has been developed to predict the thermal history of Laser Formed Ti-6Al-4V single line (rib-on-web) builds. The thermal model has been developed to assist in the prediction and interpretation of the as-processed microstructure, which evolves as a result of the complex thermal history that develops as a result of the deposition of multiple layers of material. In the current work, the model is used to show that the presence of layer bands is a result of different regions in the build experiencing varying super b transus time, temperature, and cooling rate conditions within different regions in the build.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 698: Symposia Q/EE Electroative Polymers and Rapid Prototyping , 2001 , Q3.8.1
Copyright
Copyright © Materials Research Society 2002

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References

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