Effects of Single Pass and Multipass Welding on Austenitic Stainless Steel Corrosion in Aggressive Environments

Joshua O. OKENIYI

Makale detayları

Effects of Single Pass and Multipass Welding on Austenitic Stainless Steel Corrosion in Aggressive Environments

Yazarlar:

Joshua O. OKENIYI

Yayıncı:

Gazi University

Dergi:

Gazi University Journal of Science 2017 Vol.30 Issue 4, pp.514-529

Belge Tipi:

Makale

Yayın Tarihi:

12/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000428367

eISSN:

2147-1762

Özet:

 


This study investigates single pass and multipass (three-pass) welding effects on 304 austenitic stainless steel (ASS) corrosion in acidic/saline environments, to enable a better understanding of the influence of heat affected zone (HAZ) on ASS corrosion susceptibility in the selected commonly used aggressive environments. Tungsten Inert Gas (TIG) welding process was used to weld the samples using 308 stainless steel filler. The corrosion behaviour of the welded samples was evaluated using immersion and potentiodynamic polarization tests. Immersion test evaluation and the analysed results showed that the single pass welds exhibited lower corrosion susceptibility in the acidic environments (H2SO4, HNO3) than in the multipass welded ASS. In contrast, using potentiodynamic polarization evaluation, the multipass welded sample, exhibited lower corrosion susceptibility than the single pass welded ASS in HNO3 environment. Essentially, the same trend of corrosion susceptibility was recorded in NaCl environments irrespective of the evaluation method.

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Makale detayları

Effects of Single Pass and Multipass Welding on Austenitic Stainless Steel Corrosion in Aggressive Environments

Yazarlar: Joshua O. OKENIYI

Yayıncı: Gazi University

Dergi: Gazi University Journal of Science 2017 Vol.30 Issue 4, pp.514-529

Belge Tipi: Makale

Yayın Tarihi: 12/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000428367

eISSN: 2147-1762

Sayı

Yazarlar:

Joshua O. OKENIYI

Yayıncı:

Gazi University

Dergi:

Gazi University Journal of Science 2017 Vol.30 Issue 4, pp.514-529

Belge Tipi:

Makale

Yayın Tarihi:

12/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000428367

eISSN:

2147-1762