|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing for Energy Applications III
||Effective Thermal Conductivity of Additively Manufactured Metal Matrix Composite
||Saereh Mirzababaei, Venkata Vinay Krishna Doddapaneni, Kijoon Lee, Sriram Manoharan, Chih-hung Chang, Brian K. Paul, Somayeh Pasebani
|On-Site Speaker (Planned)
Metal additive manufacturing is increasingly evolving from production of single-material into manufacturing of composite materials for various high-value sectors. While strength of the additive manufactured parts is a common concern, thermal properties are highly relevant to many heat transfer-related and energy applications. However, the effects of porosity and microstructure on the effective thermal conductivity of additive manufactured composites has not been extensively investigated. This work investigates the effective thermal conductivity of laser-melted copper-reinforced stainless steel 316L matrix. Ball milling of 316L with copper powder coupled with selective laser melting technology was utilized to additively manufacture the metal matrix composite. Several structural analytical models for predicting the effective thermal conductivity were compared with thermal conductivity measurements of additively-manufactured coupons using a laser flash method. The effect of porosity, volume fraction, shape, and size of the second phase (copper) on the thermal conductivity of the composite material were evaluated.
||Additive Manufacturing, Composites, Iron and Steel