How is intergranular corrosion prevented?

Q.  The intergranular corrosion can be prevented using ______
- Published on 11 Sep 15

a. stabilized grade of stainless steel containing titanium and niobium as an alloying element
b. low carbon grade of stainless steel
c. both a. and b.
d. none of the above

ANSWER: both a. and b.

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    Discussion

  • Sravanthi    -Posted on 16 Nov 15
    The intergranular corrosion can be avoided by using following techniques:

    1) By using post weld heat treatment

    2) Using low carbon grade stainless steel reduces the carbon available for precipitation of carbon carbide.

    3) Using stabilized steel of stainless steel: Titanium and niobium in steel prevent carbon to combine with chromium, thus avoiding formation of chromium carbide.

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