|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
||Effect of Chromium Content on the Magnetic Behavior of Direct Energy Deposited FeNiCo Alloys
||Madhavan Radhakrishnan, Michael McKinstry, Sai Kiran Nartu, Varun Chaudhary, Raju Ramanujan, Rajarshi Banerjee, Narendra Dahotre
|On-Site Speaker (Planned)
The soft magnetic behavior and microstructures of direct energy deposited (FeNiCo)1-xCrx high entropy alloys has been investigated as a function of chromium content using VSM and electron microscopy. The saturation magnetization of the ternary FeNiCo at room temperature monotonously decreased as the concentration of Cr increased, and the magnetic behavior transformed to paramagnetic at the equiatomic composition. High temperature magnetic measurements revealed that the Curie transition temperature of the ferromagnetic FeNiCo alloy gradually decreased with Cr content, while the paramagnetic equiatomic alloy showed a transition temperature of 85 K. Our results indicate that the magnetic behavior of FeNiCo alloy can be systematically tuned with the addition of non-magnetic solute element, the finding which could be promising for applications demanding gradient magnetic coatings and alloys. The talk would focus on the effects of composition and heat treatment conditions on the DED processed microstructures, local chemistry and observed magnetic behavior.
||Additive Manufacturing, High-Entropy Alloys, Magnetic Materials