Failure analysis on high temperature superheater Inconel� 800 tube
This paper presents failure analysis on a super alloy Inconel� 800 superheater tube in Kapar Power Station Malaysia. Visual inspection, microscopic examinations and creep analysis utilizing available related data are carried out to evaluate the failure mechanism and its root cause. The failed high t...
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my.uniten.dspace-306902023-12-29T15:51:24Z Failure analysis on high temperature superheater Inconel� 800 tube Ahmad J. Purbolaksono J. Beng L.C. 57210531371 8621252500 26423491900 Creep analysis Failure analysis Microstructure examinations Overheating Super-alloy tube Alloys Cracks Creep Failure analysis Grain boundaries Microscopic examination Microstructure Safety factor Superheaters Tubes (components) Visual communication Creep analysis Creep ruptures Failure mechanism Grain boundary creep High temperature Inconel Intergranular crack Internal surfaces Malaysia Microstructure examinations Overheating Power station Root cause Steam flows Super-alloy tube Tube metal temperatures Visual inspection Quality assurance This paper presents failure analysis on a super alloy Inconel� 800 superheater tube in Kapar Power Station Malaysia. Visual inspection, microscopic examinations and creep analysis utilizing available related data are carried out to evaluate the failure mechanism and its root cause. The failed high temperature superheater (HTSH) tube was found snapped into two parts, heavily distorted shape and bent at several points. Microstructures of the failed tube showed that creep crack initiated at both external and internal surfaces of the tube and propagated as grain boundary creep cavities coalesced to form intergranular cracks. The severe geometry of tube causing steam flow starvation is identified to have caused increasing tube metal temperature resulting in overheating of the failed tube. Creep rupture is revealed as the cause of failure of the superheater tube. � 2009 Elsevier Ltd. All rights reserved. Final 2023-12-29T07:51:23Z 2023-12-29T07:51:23Z 2010 Article 10.1016/j.engfailanal.2009.06.013 2-s2.0-70449527795 https://www.scopus.com/inward/record.uri?eid=2-s2.0-70449527795&doi=10.1016%2fj.engfailanal.2009.06.013&partnerID=40&md5=6cb52b184734cc0e2bf4c438a8360385 https://irepository.uniten.edu.my/handle/123456789/30690 17 1 328 333 Scopus |
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Creep analysis Failure analysis Microstructure examinations Overheating Super-alloy tube Alloys Cracks Creep Failure analysis Grain boundaries Microscopic examination Microstructure Safety factor Superheaters Tubes (components) Visual communication Creep analysis Creep ruptures Failure mechanism Grain boundary creep High temperature Inconel Intergranular crack Internal surfaces Malaysia Microstructure examinations Overheating Power station Root cause Steam flows Super-alloy tube Tube metal temperatures Visual inspection Quality assurance |
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Creep analysis Failure analysis Microstructure examinations Overheating Super-alloy tube Alloys Cracks Creep Failure analysis Grain boundaries Microscopic examination Microstructure Safety factor Superheaters Tubes (components) Visual communication Creep analysis Creep ruptures Failure mechanism Grain boundary creep High temperature Inconel Intergranular crack Internal surfaces Malaysia Microstructure examinations Overheating Power station Root cause Steam flows Super-alloy tube Tube metal temperatures Visual inspection Quality assurance Ahmad J. Purbolaksono J. Beng L.C. Failure analysis on high temperature superheater Inconel� 800 tube |
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This paper presents failure analysis on a super alloy Inconel� 800 superheater tube in Kapar Power Station Malaysia. Visual inspection, microscopic examinations and creep analysis utilizing available related data are carried out to evaluate the failure mechanism and its root cause. The failed high temperature superheater (HTSH) tube was found snapped into two parts, heavily distorted shape and bent at several points. Microstructures of the failed tube showed that creep crack initiated at both external and internal surfaces of the tube and propagated as grain boundary creep cavities coalesced to form intergranular cracks. The severe geometry of tube causing steam flow starvation is identified to have caused increasing tube metal temperature resulting in overheating of the failed tube. Creep rupture is revealed as the cause of failure of the superheater tube. � 2009 Elsevier Ltd. All rights reserved. |
| author2 |
57210531371 |
| author_facet |
57210531371 Ahmad J. Purbolaksono J. Beng L.C. |
| format |
Article |
| author |
Ahmad J. Purbolaksono J. Beng L.C. |
| author_sort |
Ahmad J. |
| title |
Failure analysis on high temperature superheater Inconel� 800 tube |
| title_short |
Failure analysis on high temperature superheater Inconel� 800 tube |
| title_full |
Failure analysis on high temperature superheater Inconel� 800 tube |
| title_fullStr |
Failure analysis on high temperature superheater Inconel� 800 tube |
| title_full_unstemmed |
Failure analysis on high temperature superheater Inconel� 800 tube |
| title_sort |
failure analysis on high temperature superheater inconel� 800 tube |
| publishDate |
2023 |
| _version_ |
1806427905277820928 |
| score |
13.211869 |