Fill in the blanks.

- Microsegregation is a type of segregation that occurs on the scale of .................. ..................................

- Microporosity is favored in alloys having 1) a large.................................................. , and 2) ................................................................

- ............................ solute transport causes microsegregation along directions ............................... to the dendrite axes.

- The longitudinal solute transport gives rise to a ....................................... along directions ........................................ to the dendrite axes.

- Time for homogenization of microsegregation is dependent on .......................................... .............................................

- Secondary dendrite arm spacing (SDAS) gets smaller if ................................................................................................

- An important effect of increasing the welding speed is that the shape of the weld pool changes from an ...................... shape to a .............. shape.