Header menu link for other important links
Stress rutpure behavior of transition joints between modified 9Cr-1Mo steel and 316 L(N) SS
Mopati Sireesha,
Published in
Volume: 58
Issue: 2-3 SPEC. ISS.
Pages: 493 - 499
Stress rupture tests were performed on welded joints between modified 9Cr-1Mo steel and Alloy 800 as part of a trimetallic (Grade 91 - Alloy 800 - 316 L(N) SS transition joint. For comparison, tests were also conducted on direct bimetallic (Grade 91 - 316LN) joints. The results show that the performance of the Grade 91 - Alloy 800 weldments is only a marginal improvement over the Grade 91 - 316LN joints. However, both these are considerably superior to joints involving the conventional 2.25Cr-1Mo steel as the ferritic component. Most failures occurred in the Grade 91 HAZ 1-2 mm from the weld interface. Metallographic characterization revealed features that correlated well with the softening that occurred in this region during creep testing.
About the journal
JournalTransactions of the Indian Institute of Metals
Open AccessNo