1.

In mechanization of foundry processes, zinc based alloys have less application due to their low structural stability.(a) True(b) FalseI have been asked this question during an interview.The doubt is from Mechanization topic in portion Foundry Mechanizations of Casting-Forming-Welding I

Answer»

Right option is (a) True

The EXPLANATION is: ZINC BASED foundry alloys with aluminium content have high strength and good tribiological properties, but due to their low structural stability over a long time that RESTRICTS their wider application in modern areas in the mechanization of foundry processes. This also reduces ductility due to the formation of dendritic STRUCTURE.



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