Question

Which of the following is/are the metallurgical factors that affect stress-corrosion cracking?

(a) Chemical composition

(b) Distribution of precipitates

(c) Dislocation interactions

(d) Chemical composition, distribution of precipitates and dislocation interactions

I got this question in class test.

My doubt is from Eight Forms in division Eight Forms of Corrosion of Corrosion Engineering

Answer 1

Right option is (d) Chemical composition, distribution of precipitates and dislocation interactions

Easy explanation: Metallurgical factors that affect stress-corrosion cracking are:

i. Average chemical composition

ii. Preferential orientation of grains

iii. Distribution of precipitates

iv. Dislocation interactions

v. Degree of metastability.