Modelling the Microstructure and Properties of Steel Weld Metals

A lecture delivered by Professor Harry Bhadeshia at the University of Cambridge on the modelling of the microstructure and mechanical properties of steel weld metal.
The talk covers the theory of phase transformations and it should useful to anyone interested in the physical metallurgy of steels.
More detail on
www.msm.cam.ac.uk/phase-trans/...
H. K. D. H. Bhadeshia

[@MrOleGermer]

It is very well explained.

[@muddassarhussain8871]

sir bhadeshia you are a great metallurgist'please upload a comprehensive lecture about
why the different colours display during welding of different metals or alloys ,how they effect the weld properties and process of welding.

[@alagappanprasannah1702]

Click the link below. Reason for decolourization of the weld puddle is well explained. th-cam.com/video/eLw_RBF4WQ8/w-d-xo.html

[@smithgeorge6979]

at 12:30 , what's the microstructure of dark/gray constituent?

[@bhadeshia123]

These are the regions of austenite left untransformed at the temperature where acicular ferrite forms, and may decompose to martensite on cooling.

[@FranciscoDiego-mc1tk]

Black deve ser ferrita

[@bhadeshia123]

O branco é de fato, ferrite