Question

With increase in carbon equivalent, the under bead cracking tendency will

1.  Decrease

 2. Increase

 3. First decrease then increase

 4. Will not be affected

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Answer 1

will not be affected

Answer 2

Among the options decrease, increase, first decrease then increase and will not be affected, the increase in carbon equivalent will cause the under-bead cracking tendency to increase.

A high value of carbon equivalent tends to fasten the rate of cooling and the tendency to form brittle, hard phases during cooling.

The risks of cracking are also known to increase with the increasing hardness.