Modelling the Microstructure and Properties of Steel Weld Metals

[@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. kzbin.info/www/bejne/m33akIV4e5mKh5o

[@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.

[@MrOleGermer]

It is very well explained.

[@FranciscoDiego-mc1tk]

Black deve ser ferrita

[@bhadeshia123]

O branco é de fato, ferrite