Abstract
The formation of sigma phase in Nb-stabilized austenitic stainless
cladding containing 9 - 10 % delta ferrite has been studied. The delta
ferrite was found to decompose during stress relief heat treatments (10 -
600 h at 670 deg C) forming sigma phase and secondary austenite. The
effect of sigma phase on mechanical properties was evaluated by using
tensile, impact and COD-tests. Corrosion properties were studied with
the aid of anodic polarization measurements and EPR-tests. Slow
strain-rate tests in 1N HCl and 0.58N H3BO3
solutions were used to study stress corrosion cracking. Hydrogen
embrittlement tests were performed by charging thin tensile specimens
with hydrogen through cathodic polarization.
| Original language | English |
|---|---|
| Pages (from-to) | 17 - 25 |
| Number of pages | 9 |
| Journal | Welding Journal |
| Volume | 63 |
| Issue number | 1 |
| Publication status | Published - 1984 |
| MoE publication type | Not Eligible |
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Klemetti, K., Hänninen, H., & Kivilahti, J. (1984). The effect of sigma phase formation on the corrosion and mechanical properties of Nb-stabilized stainless steel cladding. Welding Journal, 63(1), 17 - 25. https://app.aws.org/wj/supplement/WJ_1984_01_s17.pdf