different phase of 9 Ni steel

Question

different phase of 9 Ni steel

rinu (Materials)

(OP)

25 Mar 03 08:49

Dear all

Do you have the information?

What are the different phases present in 9% Ni steel.How it's microstructure will differ in Water quench, normalised and quenched & tempered heat treatment.

TVP (Materials) · Answer 1 · 2003-03-25 10:07:52

Steels in the normalized condition have microstructures consisting of ferrite and pearlite. The amount of pearlite depends on the carbon content. In the quenched condition, the microstructure will be martensite. After tempering, the structure will be tempered martensite. ASM HANDBOOK Volume 9 Metallography and Microstructures is an excellent reference, and it has an entire section on Plate Steels, with information on ASM A 553 (9% Ni pressure vessel plate).

rinu (Materials) · Answer 2 · 2003-03-26 09:40:03

after welding what will be the microstructure? ferrite and pearlite ? martensite should not come ?

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different phase of 9 Ni steel