Welcome to the Leijun Li group in Department of Chemical and Materials Engineering at the University of Alberta! Our group conducts award-winning research in physical metallurgy, welding metallurgy, and additive manufacturing of alloys.

Our Latest Paper: We recently published a paper "Dissolution of Nb(C,N) and (Ti,V)N in the Coarse-Grained Heat-Affected Zone of Electric Resistance Welded X65 Line Pipe" in Metallurgical and Materials Transactions A. A link for free share and the title page are shown on the right. We found the differences in dissolution behavior of carbides and nitrides during rapid welding thermal cycles. Cuboidal nitrides were much more stabler and slower to dissolve, and they might have prevented severe austenite grain growth; spherical carbides, on the other hand, were readily dissolvable, and dissolved carbon and alloying elements in austenite might have enhanced the quench-type solid-state transformations for bainite, for example.

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