Which of the following defect tends to draw surface oxides and impurities towards the centre of billet?
A)blow hole
B)cold shut
C)surface cracking
D)pipe defect

Question

Quizplus · Accepted Answer

Pipe defect is known for drawing surface oxides and impurities towards the center of the billet during solidification, as the center solidifies last and undergoes shrinkage, creating a cavity that can draw in impurities.

Which of the Following Defect Tends to Draw Surface Oxides