Theory of Materials Processing/Welding

We focus on improving reliability of heat and fluid flow calculations, tailoring attributes of processed materials, and embedding multi-physico-chemical phenomena in models

We numerically model heat, mass and fluid flow during materials processing, particularly welding. We specialize in

(a) improving reliability of results by optimizing uncertain model parameters,

(b) tailoring processed material attributes using population based optimization algorithms, and

(c) embedding physicochemical processes such as species segregation, evaporation, dissolution, and phase changes in the models.

Resulting simulations of geometry, composition and structure of welds and other processed materials solve production and design problems.

Click on a topic below to view/read a selection of our papers

Reliability of heat and fluid flow calculations	Tailoring weld attributes using Genetic Algorithm & Transport Phenomena	Vaporization of alloying elements during welding	Sulfur, oxygen and weld geometry
Hydrogen, nitrogen and oxygen in weld metal	Inclusion characteristics in weld metal	Weld microstructures	Grain structure and topology (Monte Carlo)
Friction stir welding	Modeling weld defects	Weld surface profiles	Plasma in welding
Neural network	Keyhole mode welding	Spot welding	Electroslag welding
Gas-tungsten-arc and gas-metal-arc welding	Fillet welding	Reviews	Slags
Gas stirred ladles	Tundish /AOD process simulation	Composites / solid state reactions	CVD of diamond, DLC and silica

Click here to view some of our animations

Contact email: debroy@psu.edu