Question

Which of the following is/are the preventions of caustic embrittlement?

(a) Optimize stress concentration

(b) Avoid caustic environment

(c) Use of nickel-based alloys, avoid caustic environment and optimize stress concentration

(d) Use mild carbon steels

The question was asked during an interview for a job.

My question is taken from Environments in chapter Other Environments of Corrosion Engineering

Answer 1

The correct option is (c) Use of nickel-based alloys, avoid caustic environment and optimize stress concentration

To elaborate: Preventions of caustic embrittlement are:

i. Optimize stress concentration

ii. Avoid caustic environment

iii. Use of nickel-based alloys.