PROJECT

WP2
Knowledge-based customization of CS deposits (microstructural and mechanical aspects)

Objective

WP2: Knowledge-based customization of CS deposits (microstructural and mechanical aspects): this WP sheds light on the much-debated requisites of solid-state bonding, by pairing advanced analytical, numerical, and experimental approaches. It also paves the way for customization of CS deposits starting from defining the requirements of the feedstock powder and developing apt methods to tailor the properties of the deposits to promote using CS to its maximum potential for AM and repair by: (DC11-UoN) – developing customized feedstock powder focusing on powder pre-treatment for different materials. Currently, the feedstock powder used and standardized for other powder-based fabrication methods, including laser-based melting or other thermal spray coating methods, are commonly used for CS deposition. The plan is to modify the microstructure and make it more homogeneous and deformable considering the intrinsic features of CS deposition; (DC2-TCD) – developing advanced experimental set-up for in-depth analysis of particle-substrate interaction to determine the debated plastic and elastic deformation mechanisms upon powder impact during CS and (DC3-URJC) – modulating the performance of CS deposits via optimization of the deposition parameters and systematically analyzing their effect on the physical, microstructural and mechanical properties. The most relevant processing conditions will be selected using a detailed design of experiments to be fed into Machine learning approaches to defining the process parameters-deposit properties relations; (DC4-IPP) – optimizing the structural integrity of deposits regarding fatigue crack growth rate, fatigue strength and fracture toughness. The objective is the quantification of the performance of CSAM material properties.

Scope

  1. Customized powder development
  2. Resolving particle-substrate interaction
  3. Developing systematic characterization protocols
  4. Durability and damage tolerant assessment