Our Research

The P2AM2 lab (formely the NAIN lab) has focused its research endeavour on the triangular interactions linking powder metallurgy (PM), rapid solidification welding and additive manufacturing (AM) to develop new materials and manufacturing schemes.

Additive Manufacturing to enable advanced materials manufacturing

LPBF-AM

Prof. Brochu’s research team has been researching the applicability of pulsed energy delivery to reach enhanced control over thermal and thermo-mechanical phenomena during AM, resulting in new manufacturing opportunities. The group has developed unique expertise in influencing the solidification behavior allowing AM of unweldable materials and/or materials with different grain structure. The team specializes in powder bed fusion applications, but DED processing is also included in our research portfolio.

Powder engineering for powder metallurgy and additive manufacturing

Powder Engineering

The fabrication of high performance and reliable components from metal powder is directly linked to its sintering or melting behavior, for which the powder surface quality is of prime importance. This expertise acquired over the last 10 years was adopted in lab-scale and industrial-scale powder fabrication and milling schemes. Our expertise relating powder surface chemistry with manufacturing was transitioned to the AM field, where additional consideration of laser-particle surface interactions, particle-to-particle and particle-environment interactions during motion, tribo-charging etc, is included with the particle extrinsic, intrinsic and surface properties.

Alloy development for rapid solidification conditions

Alloy Development

Prof. Brochu’s team has been involved in the field of alloy development for rapid solidification for over a decade. The group has worked on approaches to alter and control the primary solidification phase and further control the coherent precipitation during heat treatment to develop high strength and high stability materials. Another research trust involves the development of alloys possessing higher terminal liquid volume fraction that is then transformed into high temperature phases by optimised heat treatments. Non-equilibrium thermodynamic modelling is strengthened by rapid calorimetry experiments.

Powder Sintering

FAS

The research team is studying the densification of various nanostructured and conventional metal alloy powders under rapid heating conditions in pressureless and pressure assisted processes. The main objective is to maximize the mechanical properties while controlling the sintered grain size. The research efforts include modeling, where densification models and distortion prediction were developed and experimentally validated using dilatometric study through to industrial scale furnace trials. The efforts are focusing on powder metallurgy and sintering of additive components. The lab was the host of the first SPS press in Canada.

Rapid solidification welding processes

Rapid welding

Prof. Brochu’s team have studied a series of rapid solidification welding processes including micro-laser welding , micro-arc welding and electrospark deposition to capture their benefit in terms of microstructure control. These welding processes that can reach cooling rate reported to range up to 105-1010 K/min. Several advanced materials including bulk metallic glasses and ultra-fined grain materials were studied with the goal of maintaining similar grain structure and characteristic in the weld zone than in the parent material.

More Services

Creative Performance

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.

Reach Performance

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.

Custom Development

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.

Creative Performance

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.

Reach Performance

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.

Custom Development

Even the all-powerful Pointing has no control about the blind texts it is an almost unorthographic.