Manufacturing and Industrial Engineering - GATE practice papers - Mechanical for Q. 390

Q.  Why is the copper suitable to use as filler for joining iron and silver? (Marks: 02)
- Published on 19 Oct 15

a. copper is soluble in iron
b. copper is soluble in silver
c. both a. and b.
d. none of the above

ANSWER: both a. and b.
 
The filler material should be soluble in both of the materials which are going to be joined. As copper is soluble in iron as well as in silver, it is suitable as filler for joining iron and silver.

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